US20030206837A1 - Electro-kinetic air transporter and conditioner device with enhanced maintenance features and enhanced anti-microorganism capability - Google Patents

Electro-kinetic air transporter and conditioner device with enhanced maintenance features and enhanced anti-microorganism capability Download PDF

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US20030206837A1
US20030206837A1 US10074379 US7437902A US2003206837A1 US 20030206837 A1 US20030206837 A1 US 20030206837A1 US 10074379 US10074379 US 10074379 US 7437902 A US7437902 A US 7437902A US 2003206837 A1 US2003206837 A1 US 2003206837A1
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electrode
housing
electrodes
top
airflow
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US10074379
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Charles Taylor
Shek Lau
Andrew Parker
Tristan Christianson
Gregory Snyder
Edward McKinney
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Sharper Image Corp
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Sharper Image Corp
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34Constructional details or accessories or operation thereof
    • B03C3/74Cleaning the electrodes
    • B03C3/743Cleaning the electrodes by using friction, e.g. by brushes or sliding elements
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/015Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/16Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18Radiation
    • A61L9/20Ultra-violet radiation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICAL ARTICLES
    • A61L9/00Disinfection, sterilisation or deodorisation of air
    • A61L9/16Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/22Ionisation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/32Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by electrical effects other than those provided for in group B01D61/00
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/02Plant or installations having external electricity supply
    • B03C3/04Plant or installations having external electricity supply dry type
    • B03C3/12Plant or installations having external electricity supply dry type characterised by separation of ionising and collecting stations
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60HARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H3/00Other air-treating devices
    • B60H3/0071Electrically conditioning the air, e.g. by ionizing
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10Preparation of ozone
    • C01B13/11Preparation of ozone by electric discharge
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10Preparation of ozone
    • C01B13/11Preparation of ozone by electric discharge
    • C01B13/115Preparation of ozone by electric discharge characterised by the electrical circuits producing the electrical discharge
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01TSPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03CMAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C2201/00Details of magnetic or electrostatic separation
    • B03C2201/14Details of magnetic or electrostatic separation the gas being moved electro-kinetically
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2201/00Preparation of ozone by electrical discharge
    • C01B2201/10Dischargers used for production of ozone
    • C01B2201/12Plate-type dischargers
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2201/00Preparation of ozone by electrical discharge
    • C01B2201/20Electrodes used for obtaining electrical discharge
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B2201/00Preparation of ozone by electrical discharge
    • C01B2201/20Electrodes used for obtaining electrical discharge
    • C01B2201/22Constructional details of the electrodes
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F2003/1664Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation by sterilisation
    • F24F2003/1667Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation by sterilisation using UV light
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F2003/1682Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation by ionisation
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/12Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
    • F24F3/16Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation
    • F24F2003/1685Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by purification, e.g. by filtering; by sterilisation; by ozonisation by ozonisation

Abstract

An electro-kinetic air conditioner for removing particulates from the air creates an airflow using no moving parts. The airflow is subjected to UV radiation from a germicidal lamp within the device. The conditioner includes an ion generator that has an electrode assembly including a first array of emitter electrodes, a second array of collector electrodes, and a high voltage generator. The device can also include a third or leading or focus electrode located upstream of the first array of emitter electrodes, and/or a trailing electrode located downstream of the second array of collector electrodes, and/or an interstitial electrode located between collector electrodes, and/or an enhanced emitter electrode with an enhanced length in order to increase emissivity.

Description

    CLAIM OF PRIORITY
  • This application claims priority from provisional application entitled “ELECTRO-KINETIC AIR TRANSPORTER AND CONDITIONER DEVICE WITH ENHANCED MAINTENANCE FEATURES AND ENHANCED ANTI-MICROORGANISM CAPABILITY,” Application No. 60/341,377, filed Dec. 13, 2001 under 35 U.S.C. 119(e),which application is incorporated herein by reference. This application claims priority from provisional application entitled “FOCUS ELECTRODE, ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES,” Application No. 60/306,479, filed Jul. 18, 2001 under 35 U.S.C. 119(e),which application is incorporated herein by reference. This application claims priority from and is a continuation-in-part of patent application “ELECTRO-KINETIC DEVICE WITH ENHANCED ANTI-MICROORGANISM CAPABILITY”, application Ser. No. 09/774,198, filed Jan. 29, 2001, and incorporated herein by reference. This application claims priority from and is a continuation-in-part of U.S. patent application Ser. No. 09/924,624 filed Aug. 8, 2001 which is a continuation of U.S. Pat. Ser. No. 09/564,960 filed May 4, 2000, which is a continuation-in-part of U.S. patent application Ser. No. 09/186,471 filed Nov. 5, 1998, now U.S. Pat. No. 6,176,977. All of the above are incorporated herein by reference.[0001]
  • CROSS-REFERENCE TO RELATED APPLICATIONS
  • 1. U.S. patent application Ser. No. 60/341,518, filed Dec. 13, 2001, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH AN UPSTREAM FOCUS ELECTRODE”; SHPR-01041US6 [0002]
  • 2. U.S. Patent Application No. 60/341,090, filed Dec. 13, 2001, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH TRAILING ELECTRODE”; SHPR-01041USE [0003]
  • 3. U.S. Patent Application No. 60/341,433, filed Dec. 13, 2001, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH INTERSTITIAL ELECTRODE”; SHPR-01041USF [0004]
  • 4. U.S. Patent Application No. 60/341,592, filed Dec. 13, 2001, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH ENHANCED COLLECTOR ELECTRODE”; SHPR-01041USG [0005]
  • 5. U.S. Patent Application No. 60/341,320, filed Dec. 13, 2001, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH ENHANCED EMITTER ELECTRODE”; SHPR-01041USH [0006]
  • 6. U.S. Patent Application No. 60/341,179, filed Dec. 13, 2001, entitled “ELECTRO-KINETIC AIR TRANSPORTER AND CONDITIONER DEVICE WITH ENHANCED ANTI-MICROORGANISM CAPABILITY”; SHPR-01028US1 [0007]
  • 7. U.S. Patent Application No. 60/340,702, filed Dec. 13, 2001, entitled “ELECTRO-KINETIC AIR TRANSPORTER AND CONDITIONER DEVICE WITH ENHANCED HOUSING CONFIGURATION AND ENHANCED ANTI-MICROORGANISM CAPABILITY”; SHPR-01028US2 [0008]
  • 8. U.S. patent application Ser. No. 10/023,197, filed Dec. 13, 2001, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER WITH ENHANCED CLEANING FEATURES”; SHPR-01041US1 [0009]
  • 9. U.S. patent application Ser. No. 10/023,460, filed Dec. 13, 2001, entitled “ELECTRO-KINETIC AIR TRANSPORTER CONDITIONER WITH PIN-RING CONFIGURATION”; SHPR-01041USJ [0010]
  • 10. U.S. Patent Application No. 60/341,176, filed Dec. 13, 2001, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER WITH NON-EQUIDISTANT COLLECTOR ELECTRODES”; SHPR-01041US8 [0011]
  • 11. U.S. Patent Application No. 60/340,288, filed Dec. 13, 2001, entitled “DUAL INPUT AND OUTLET ELECTROSTATIC AIR TRANSPORTER-CONDMONER”; SHPR-01041US7 [0012]
  • 12. U.S. Patent Application No. 60/340,462, filed Dec. 13, 2001, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH A ENHANCED COLLECTOR ELECTRODE FOR COLLECTION OF MORE PARTICULATE MATTER”; SHPR-01041US9 [0013]
  • 13. U.S. patent application Ser. No. ______, filed herewith, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH AN UPSTREAM FOCUS ELECTRODE”; SHPR-01041USL [0014]
  • 14. U.S. patent application Ser. No. ______, filed herewith, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH TRAILING ELECTRODE”; SHPR-01041USM [0015]
  • 15. U.S. patent application Ser. No. ______, filed herewith, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH INTERSTITIAL ELECTRODE”; SHPR-01041USN [0016]
  • 16. U.S. patent application Ser. No. ______, filed herewith, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH ENHANCED COLLECTOR ELECTRODE”; SHPR-01041 USO [0017]
  • 17. U.S. patent application Ser. No. ______, filed herewith, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH ENHANCED EMITTER ELECTRODE”; SHPR-01041USP [0018]
  • 18. U.S. patent application Ser. No. ______, filed herewith, entitled “ELECTRO-KINETIC AIR TRANSPORTER AND CONDITIONER DEVICE WITH ENHANCED ANTI-MICROORGANISM CAPABILITY”; SHPR-01028US4 [0019]
  • 19. U.S. patent application Ser. No. ______, filed herewith, entitled “ELECTRO-KINETIC AIR TRANSPORTER AND CONDITIONER DEVICE WITH ENHANCED HOUSING CONFIGURATION AND ENHANCED ANTI-MICROORGANISM CAPABILITY”; SHPR-01028US5 [0020]
  • 20. U.S. patent application Ser. No. ______, filed herewith, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER WITH NON-EQUIDISTANT COLLECTOR ELECTRODES”; SHPR-01041USQ [0021]
  • 21. U.S. patent application Ser. No. ______, filed herewith, entitled “DUAL INPUT AND OUTLET ELECTROSTATIC AIR TRANSPORTER-CONDITIONER”; SHPR01041USR and [0022]
  • 22. U.S. patent application Ser. No. ______, filed herewith, entitled “ELECTRO-KINETIC AIR TRANSPORTER-CONDITIONER DEVICES WITH A ENHANCED COLLECTOR ELECTRODE FOR COLLECTION OF MORE PARTICULATE MATTER”. SHPR-01041USS [0023]
  • All of the above are incorporated herein by reference. [0024]
  • FIELD OF THE INVENTION
  • The present invention relates generally to a device that transports and conditions air. More specifically, an embodiment of the present invention provides such a device with the enhanced ability to reduce the number of microorganisms within the air, which microorganisms can include germs, bacteria, and viruses. [0025]
  • BACKGROUND OF THE INVENTION
  • U.S. Pat. No. 4,789,801 issued to Lee, and incorporated herein by reference, describes various devices to generate a stream of ionized air using an electro-kinetic technique. In overview, electro-kinetic techniques use high electric fields to ionize air molecules, a process that produces ozone (O[0026] 3) as a byproduct. Ozone is an unstable molecule of oxygen that is commonly produced as a byproduct of high voltage arcing. In appropriate concentrations, ozone can be a desirable and useful substance. But ozone by itself may not be effective to kill microorganisms such as germs, bacteria, and viruses in the environment surrounding the device.
  • FIG. 1 depicts a generic electro-kinetic device [0027] 10 to condition air. Device 10 includes a housing 20 that typically has at least one air input 30 and at least one air output 40. Within housing 20 there is disposed an electrode assembly or system 50 comprising a first electrode array 60 having at least one electrode 70 and comprising a second electrode array 80 having at least one electrode 90. System 10 further includes a high voltage generator 95 coupled between the first and second electrode arrays. As a result, ozone and ionized particles of air are generated within device 10, and there is an electro-kinetic flow of air in the direction from the first electrode array 60 towards the second electrode array 80. In FIG. 1, the large arrow denoted IN represents ambient air that can enter input port 30. The small “x”'s denote particulate matter that may be present in the incoming ambient air. The air movement is in the direction of the large arrows, and the output airflow, denoted OUT, exits device 10 via outlet 40. An advantage of electro-kinetic devices such as device 10 is that an airflow is created without using fans or other moving parts. Thus, device 10 in FIG. 1 can function somewhat as a fan to create an output airflow, but without requiring moving parts.
  • Preferably particulate matter “x” in the ambient air can be electrostatically attracted to the second electrode array [0028] 80, with the result that the outflow (OUT) of air from device 10 not only contains ozone and ionized air, but can be cleaner than the ambient air. In such devices, it can become necessary to occasionally clean the second electrode array electrodes 80 to remove particulate matter and other debris from the surface of electrodes 90. Accordingly, the outflow of air (OUT) is conditioned in that particulate matter is removed and the outflow includes appropriate amounts of ozone, and some ions.
  • An outflow of air containing ions and ozone may not, however, destroy or significantly reduce microorganisms such as germs, bacteria, fungi, viruses, and the like, collectively hereinafter “microorganisms.” It is known in the art to destroy such microorganisms with, byway of example only, germicidal lamps. Such lamps can emit ultra-violet radiation having a wavelength of about 254 nm. For example, devices to condition air using mechanical fans, HEPA filters, and germicidal lamps are sold commercially by companies such as Austin Air, C.A.R.E. 2000, Amaircare, and others. Often these devices are somewhat cumbersome, and have the size and bulk of a small filing cabinet. Although such fan-powered devices can reduce or destroy microorganisms, the devices tend to be bulky, and are not necessarily silent in operation. [0029]
  • U.S. Pat. Nos. 5,879,435, 6,019,815, and 6,149,717, issued to Satyapal et al., and incorporated herein by reference, discloses an electronic air cleaner that contains an electrostatic precipitator cell and a germicidal lamp for use, among other uses, with a forced air furnace system. The electrostatic precipitator cell includes multiple collector plates for collecting particulate material from the airstream. The germicidal lamp is disposed within the air cleaner to irradiate the collector plates and to destroy microbial growth that might occur on the particulate material deposited on the collector plates. Particles that pass through the air cleaner due to the action of the fan of the forced air furnace, and that are not deposited on the collector plates, generally are not subjected to the germicidal radiation for a period of time long enough for the light to substantially reduce microorganisms within the airflow. [0030]
  • What is needed is a device to condition air in a room that can operate relatively silently to remove particulate matter in the air, that can preferably output appropriate amounts of ozone or no ozone, and that can kill or reduce microorganisms such as germs, fungi, bacteria, viruses, and the like contained within the airflow. [0031]
  • SUMMARY OF THE PRESENT INVENTION
  • Embodiments of the present invention provide devices that fulfill the above described needs. It is an aspect of the present invention to reduce the amount of microorganisms within the airflow. An embodiment of the present invention has an ion generator to create an airflow and collect particulates, and a germicidal lamp to kill microorganisms. The housing is shaped to slow the airflow rate as the airflow passes the germicidal lamp, allowing a longer dwell time of the air in front of the germicidal lamp. [0032]
  • An aspect of the invention includes the germicidal lamp located upstream of the ion generator. An embodiment of the invention locates the germicidal lamp within the housing to maximize the amount of air irradiated, and to minimize the disturbance the lamp housing will cause to the airflow rate of the device. Another embodiment maximizes the amount of germicidal light that will directly shine on the airflow, without having to be reflected. [0033]
  • Another aspect of the present invention ensures that there is no direct line-of-sight through the air inlet or the air outlet of the housing to the germicidal lamp. An embodiment of the present invention has vertical fins covering the air inlet and air outlet to prohibit an individual from directly staring at the germicidal radiation emitted by the lamp. Another embodiment includes a shell or lamp housing that substantially surrounds the germicidal lamp to direct the radiation away from the air inlet, and the air outlet. [0034]
  • Another feature of an embodiment of the invention includes the ease of removeability of electrodes from the ion generator and ease of replacement of the germicidal lamp. An embodiment of the invention includes a rear panel that can be removed to expose the germicidal lamp for replacing. Another embodiment of the invention has second electrodes and a germicidal lamp that can be removed through the top of the housing for cleaning and/or replacement. [0035]
  • Other features and advantages of the invention will appear from the following description in which the preferred embodiments have been set forth in detail, in conjunction with the accompanying drawings and claims.[0036]
  • BRIEF DESCRIPTION OF THE FIGURES
  • FIG. 1 depicts a generic electro-kinetic conditioner device that outputs ionized air and ozone, according to the prior art; [0037]
  • FIGS. [0038] 2A-2B; FIG. 2A is a perspective view of an embodiment of the housing for the present invention; FIG. 2B is a perspective view of the embodiment shown in FIG. 2A, illustrating the removable array of second electrodes;
  • FIGS. [0039] 3A-3E; FIG. 3A is a perspective view of an embodiment of the present invention without a base; FIG. 3B is a top view of the embodiment of the present invention illustrated in FIG. 3A; FIG. 3C is a partial perspective view of the embodiment shown in FIGS. 3A-3B, illustrating the removable second array of electrodes; FIG. 3D is a side view of the embodiment of the present invention of FIG. 3A including a base; FIG. 3E is a perspective view of the embodiment in FIG. 3D, illustrating a removable rear panel which exposes a germicidal lamp;
  • FIG. 4 is a perspective view of another embodiment of the present invention; [0040]
  • FIGS. [0041] 5A-5B; FIG. 5A is atop, partial cross-sectioned view of an embodiment of the present invention, illustrating one configuration of the germicidal lamp; FIG. 5B is a top, partial cross-sectioned view of another embodiment of the present invention, illustrating another configuration of the germicidal lamp;
  • FIG. 6 is a top, partial cross-sectional view of yet another embodiment of the present invention; [0042]
  • FIGS. [0043] 7A-7B; FIG. 7A is a partial electrical block diagram of an embodiment of the circuit of the present invention; FIG. 7B is a partial electrical block diagram of the embodiment of the present invention for use with the circuit depicted in FIG. 7A;
  • FIGS. [0044] 8A-8F; FIG. 8A is a perspective view showing an embodiment of an electrode assembly, according to the present invention; FIG. 8B is a plan view of the embodiment illustrated in FIG. 8A; FIG. 8C is a perspective view showing another embodiment of an electrode assembly, according to the present invention; FIG. 8D is a plan view illustrating a modified version of the embodiment shown in FIG. 8C; FIG. 8E is a perspective view showing yet another embodiment of an electrode assembly according to the present invention; FIG. 8F is a plan view of the embodiment shown in FIG. 8E;
  • FIGS. [0045] 9A-9B; FIG. 9A is a perspective view of still another embodiment of the present invention; FIG. 9B is a plan view of a modified embodiment of that shown in FIG. 9A;
  • FIGS. [0046] 10A-10D; FIG. 10A is a perspective view of another embodiment of the present invention; FIG. 10B is a perspective view of a modified embodiment of that shown in FIG. 10A; FIG. 10C is a perspective view of a modified embodiment of that shown in FIG. 10B; FIG. 10D is a modified embodiment of that shown in FIG. 8D;
  • FIGS. [0047] 11A-11C; FIG. 11A is a perspective view of yet another embodiment of the present invention; FIG. 11B is a perspective view of a modified embodiment of that shown in FIG. 11A; FIG. 11C is a perspective view of a modified embodiment of that shown in FIG. 11B;
  • FIGS. [0048] 12A-12C; FIG. 12A is a perspective view of still another embodiment of the present invention; FIG. 12B is a perspective view of a modified embodiment of that shown in FIG. 9A; FIG. 12C is a perspective view of a modified embodiment of that shown in FIG. 12A;
  • FIGS. [0049] 13A-13C; FIG. 13A is a perspective view of another embodiment of the present invention; FIG. 13B is a plan view of the embodiment shown in FIG. 13A; FIG. 13C is a plan view of still another embodiment of the present invention;
  • FIGS. [0050] 14A-14F; FIG. 14A is a plan view of still another embodiment of the present invention; FIG. 14B is a plan view of a modified embodiment of that shown in FIG. 14A; FIG. 14C is a plan view of yet another embodiment of the present invention; FIG. 14D is a plan view of a modified embodiment of that shown in FIG. 14C; FIG. 14E is a plan view of another embodiment of the present invention; FIG. 14F is a plan view of a modified embodiment of that shown in FIG. 14E; and
  • FIGS. [0051] 15A-15C; FIG. 15A is perspective view of another embodiment of the present invention; FIG. 15B is a perspective view of still another embodiment of the present invention; FIG. 15C is a perspective view of yet another embodiment of the present invention.
  • DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
  • Overall Air Transporter-Conditioner System Configuration: [0052]
  • FIGS. [0053] 2A-2B
  • FIGS. [0054] 2A-2B depicts a system which does not have incorporated therein a germicidal lamp. However, these embodiments do include other aspects such as the removable second electrodes which can be included in the other described embodiments.
  • FIGS. 2A and 2B depict an electro-kinetic air transporter-conditioner system [0055] 100 whose housing 102 includes preferably rear-located intake vents or louvers 104 and preferably front located exhaust vents 106, and a base pedestal 108. Preferably, the housing 102 is free standing and/or upstandingly vertical and/or elongated. Internal to the transporter housing 102 is anion generating unit 160, preferably powered by an AC:DC power supply that is energizable or excitable using switch S1. Switch S1, along with the other below described user operated switches, are conveniently located at the top 103 of the unit 100. Ion generating unit 160 is self-contained in that other ambient air, nothing is required from beyond the transporter housing 102, save external operating potential, for operation of the present invention.
  • The upper surface [0056] 103 of the housing 102 includes a user-liftable handle member 112 to which is affixed a second array 240 of collector electrodes 242. The housing 102 also encloses a first array of emitter electrodes 230, or a single first emitter electrode shown here as a single wire or wire-shaped electrode 232. (The terms “wire” and “wire-shaped” shall be used interchangeably herein to mean an electrode either made from a wire or, if thicker or stiffer than a wire, having the appearance of a wire.) In the embodiment shown, handle member 112 lifts second array electrodes 240 upward causing the second electrode to telescope out of the top of the housing and, if desired, out of unit 100 for cleaning, while the first electrode array 230 remains within unit 100. As is evident from the figure, the second array of electrodes 240 can be lifted vertically out from the top 103 of unit 100 along the longitudinal axis or direction of the elongated housing 102. This arrangement with the second electrodes removable from the top 103 of the unit 100, makes it easy for the user to pull the second electrodes 242 out for cleaning. In FIG. 2B, the bottom ends of second electrodes 242 are connected to a member 113, to which is attached a mechanism 500, which includes a flexible member and a slot for capturing and cleaning the first electrode 232, whenever handle member 112 is moved upward or downward by a user. The first and second arrays of electrodes are coupled to the output terminals of ion generating unit 160.
  • The general shape of the embodiment of the invention shown in FIGS. 2A and 2B is that of a figure eight in cross-section, although other shapes are within the spirit and scope of the invention. The top-to-bottom height in one preferred embodiment is, 1 m, with a left-to-right width of preferably 15 cm, and a front-to-back depth of perhaps 10 cm, although other dimensions and shapes can of course be used. A louvered construction provides ample inlet and outlet venting in an ergonomical housing configuration. There need be no real distinction between vents [0057] 104 and 106, except their location relative to the second electrodes. These vents serve to ensure that an adequate flow of ambient air can be drawn into or made available to the unit 100, and that an adequate flow of ionized air that includes appropriate amounts of O3 flows out from unit 100.
  • As will be described, when unit [0058] 100 is energized by depressing switch S1, high voltage or high potential output by an ion generator 160 produces ions at the first electrode 232, which ions are attracted to the second electrodes 242. The movement of the ions in an “IN” to “OUT” direction carries with the ions air molecules, thus electro-kinetically producing an outflow of ionized air. The “IN” rotation in FIGS. 2A and 2B denote the intake of ambient air with particulate matter 60. The “OUT” notation in the figures denotes the outflow of cleaned air substantially devoid of the particulate matter, which particulates matter adheres electrostatically to the surface of the second electrodes. In the process of generating the ionized airflow appropriate amounts of ozone (O3) are beneficially produced. It maybe desired to provide the inner surface of housing 102 with an electrostatic shield to reduce detectable electromagnetic radiation. For example, a metal shield could be disposed within the housing, or portions of the interior of the housing can be coated with a metallic paint to reduce such radiation.
  • Preferred Embodiments of Air-Transporter-Conditioner System with Germicidal Lamp [0059]
  • FIGS. [0060] 3A-6 depict various embodiments of the device 200, with an improved ability to diminish or destroy microorganisms including bacteria, germs, and viruses. Specifically, FIGS. 3A-6 illustrate various preferred embodiments of the elongated and upstanding housing 210 with the operating controls located on the top surface 217 of the housing 210 for controlling the device 200.
  • FIGS. [0061] 3A-3E
  • FIG. 3A illustrates a first preferred embodiment of the housing [0062] 210 of device 200. The housing 210 is preferably made from a lightweight inexpensive material, ABS plastic for example. As a germicidal lamp (described hereinafter) is located within the housing 210, the material must be able to withstand prolonged exposure to class UV-C light. Non “hardened” material will degenerate over time if exposed to light such as UV-C. Byway of example only, the housing 210 may be manufactured from CYCLOLAC® ABS Resin, (material designation VW300(f2)) which is manufactured by General Electric Plastics Global Products, and is certified by UL Inc. for use with ultraviolet light. It is within the scope of the present invention to manufacture the housing 210 from other UV appropriate materials.
  • In a preferred embodiment, the housing [0063] 210 is aerodynamically oval, elliptical, teardrop-shaped or egg-shaped. The housing 210 includes at least one air intake 250, and at least one air outlet 260. As used herein, it will be understood that the intake 250 is “upstream” relative to the outlet 260, and that the outlet 260 is “downstream” from the intake 250. “Upstream” and “downstream” describe the general flow of air into, through, and out of device 200, as indicated by the large hollow arrows.
  • Covering the inlet [0064] 250 and the outlet 260 are fins, louvers, or baffles 212. The fins 212 are preferably elongated and upstanding, and thus in the preferred embodiment, vertically oriented to minimize resistance to the airflow entering and exiting the device 200. Preferably the fins 212 are vertical and parallel to at least the second collector electrode array 240 (see FIG. 5A). The fins 212 can also be parallel to the first emitter electrode array 230. This configuration assists in the flow of air through the device 200 and also assists in preventing UV radiation from the UV or germicidal lamp 290 (described hereinafter), or other germicidal source, from exiting the housing 210. By way of example only, if the long width of the body from the inlet 250 to the outlet 260 is 8 inches, the collector electrode 242 (see FIG. 5A) can be 1¼″ wide in the direction of airflow, and the fins 212 can be ¾″ or ½″ wide in the direction airflow. Of course, other proportionate dimensions are within the spirit and scope of the invention. Further, other fin and housing shapes which may not be as aerodynamic are within the spirit and scope of the invention.
  • From the above it is evident that preferably the cross-section of the housing [0065] 210 is oval, elliptical, teardrop-shaped or egg shaped with the inlet 250 and outlet 260 narrower than the middle (see line A-A in FIG. 5A) of the housing 210. Accordingly, the airflow, as it passes across line A-A, is slower due to the increased width and area of the housing 210. Any bacteria, germs, or virus within the airflow will have a greater dwell time and be neutralized by a germicidal device, such as, preferably, an ultraviolet lamp.
  • FIG. 3B illustrates the operating controls for the device [0066] 200. Located on top surface 217 of the housing 210 is an airflow speed control dial 214, a boost button 216, a function dial 218, and an overload/cleaning light 219. The airflow speed control dial 214 has three settings from which a user can choose: LOW, MED, and HIGH. The airflow rate is proportional to the voltage differential between the electrodes or electrode arrays coupled to the ion generator 160. The LOW, MED, and HIGH settings generate a different predetermined voltage difference between the first and second arrays. For example, the LOW setting will create the smallest voltage difference, while the HIGH setting will create the largest voltage difference. Thus, the LOW setting will cause the device 200 to generate the slowest airflow rate, while the HIGH setting will cause the device 200 to generate the fastest airflow rate. These airflow rates are created by the electronic circuit disclosed in FIGS. 7A-7B, and operate as disclosed below.
  • The function dial [0067] 218 enables a user to select “ON,” “ON/GP,” or “OFF.” The unit 200 functions as an electrostatic air transporter-conditioner, creating an airflow from the inlet 250 to the outlet 260, and removing the particles within the airflow when the function dial 218 is set to the “ON” setting. The germicidal lamp 290 does not operate, or emit UV light, when the function dial 218 is set to “ON.” The device 200 also functions as an electrostatic air transporter conditioner, creating an airflow from the inlet 250 to the outlet 260, and removing particles within the airflow when the function dial 218 is set to the “ON/GP” setting. In addition, the “ON/GP” setting activates the germicidal lamp 290 to emit UV light to remove or kill bacteria within the airflow. The device 200 will not operate when the function dial 218 is set to the “OFF” setting.
  • As previously mentioned, the device [0068] 200 preferably generates small amounts of ozone to reduce odors within the room. If there is an extremely pungent odor within the room, or a user would like to temporarily accelerate the rate of cleaning, the device 200 has a boost button 216. When the boost button 216 is depressed, the device 200 will temporarily increase the airflow rate to a predetermined maximum rate, and generate an increased amount of ozone. The increased amount of ozone will reduce the odor in the room faster than if the device 200 was set to HIGH. The maximum airflow rate will also increase the particle capture rate of the device 200. In a preferred embodiment, pressing the boost button 216 will increase the airflow rate and ozone production continuously for 5 minutes. This time period maybe longer or shorter. At the end of the preset time period (e.g., 5 minutes), the device 200 will return to the airflow rate previously selected by the control dial 214.
  • The overload/cleaning light [0069] 219 indicates if the second electrodes 242 require cleaning, or if arcing occurs between the first and second electrode arrays. The overload/cleaning light 219 may illuminate either amber or red in color. The light 219 will turn amber if the device 200 has been operating continuously for more than two weeks and the second array 240 has not been removed for cleaning within the two week period. The amber light is controlled by the below described 2-week time circuit 130 (see FIG. 7B) which is connected to the power setting circuit 122. The device 200 will continue to operate after the light 219 turns amber. The light 219 is only an indicator. There are two ways to reset or turn the light 219 off. A user may remove and replace the second array 240 from the unit 200. The user may also turn the control dial 218 to the OFF position, and subsequently turn the control dial 218 back to the “ON” or “ON/GP” position. The timer circuit 130 will reset and begin counting a new two week period upon completing either of these two steps.
  • The light [0070] 219 will turn red to indicate that arcing has occurred between the first array 230 and the second array 240, as sensed by a sensing circuit 132, which is connected between the IGBT switch 126 and the connector oscillator 124 of FIG. 7B (as described below). When arcing occurs, the device 200 will automatically shut itself off. The device 200 cannot be restarted until the device 200 is reset. To reset the device 200, the second array 240 should first be removed from the housing 210 after the unit 200 is turned off. The second electrode 240 can then be cleaned and placed back into the housing 210. Then, the device 200 is turned on. If no arcing occurs, the device 200 will operate and generate an airflow. If the arcing between the electrodes continues, the device 200 will again shut itself off, and need to be reset.
  • FIG. 3C illustrates the second electrodes [0071] 242 partially removed from the housing 210. In this embodiment, the handle 202 is attached to an electrode mounting bracket 203. The bracket 203 secures the second electrodes 242 in a fixed, parallel configuration. Another similar bracket 203 is attached to the second electrodes 242 substantially at the bottom (not shown). The two brackets 203 align the second electrodes 242 parallel to each other, and in-line with the airflow traveling through the housing 210. Preferably, the brackets 203 are non-conductive surfaces.
  • One of the various safety features can be seen with the second electrodes [0072] 242 partially removed. As shown in FIG. 3C, an interlock post 204 extends from the bottom of the handle 202. When the second electrodes 242 are placed completely into the housing 210, the handle 202 rests within the top surface 217 of the housing, as shown by FIGS. 3A-3B. In this position, the interlock post 204 protrudes into the interlock recess 206 and activates a switch connecting the electrical circuit of the unit 200. When the handle 202 is removed from the housing 210, the interlock post 204 is pulled out of the interlock recess 206 and the switch opens the electrical circuit. With the switch in an open position, the unit 200 will not operate. Thus, if the second electrodes 242 are removed from the housing 210 while the unit 200 is operating, the unit 200 will shut off as soon as the interlock post 204 is removed from the interlock recess 206.
  • FIG. 3D depicts the housing [0073] 210 mounted on a stand or base 215. The housing 210 has an inlet 250 and an outlet 260. The base 215 sits on a floor surface. The base 215 allows the housing 210 to remain in a vertical position. It is within the scope of the present invention for the housing 210 to be pivotally connected to the base 215. As can be seen in FIG. 3D, housing 210 includes sloped top surface 217 and sloped bottom surface 213. These surfaces slope inwardly from inlet 250 to outlet 260 to additionally provide a streamline appearance and effect.
  • FIG. 3E illustrates that the housing [0074] 210 has a removable rear panel 224, allowing a user to easily access and remove the germicidal lamp 290 from the housing 210 when the lamp 290 expires. This rear panel 224 in this embodiment defines the air inlet and comprises the vertical louvers. The rear panel 224 has locking tabs 226 located on each side, along the entire length of the panel 224. The locking tabs 226, as shown in FIG. 3E, are “L”-shaped. Each tab 224 extends away from the panel 224, inward towards the housing 210, and then projects downward, parallel with the edge of the panel 224. It is within the spirit and scope of the invention to have differently shaped tabs 226. Each tab 224 individually and slidably interlocks with recesses 228 formed within the housing 210. The rear panel 224 also has a biased lever (not shown) located at the bottom of the panel 224 that interlocks with the recess 230. To remove the panel 224 from the housing 210, the lever is urged away from the housing 210, and the panel 224 is slid vertically upward until the tabs 226 disengage the recesses 228. The panel 224 is then pulled away from the housing 210. Removing the panel 224 exposes the lamp 290 for replacement.
  • The panel [0075] 224 also has a safety mechanism to shut the device 200 off when the panel 224 is removed. The panel 224 has a rear projecting tab (not shown) that engages the safety interlock recess 227 when the panel 224 is secured to the housing 210. Byway of example only, the rear tab depresses a safety switch located within the recess 227 when the rear panel 224 is secured to the housing 210. The device 200 will operate only when the rear tab in the panel 224 is fully inserted into the safety interlock recess 227. When the panel 224 is removed from the housing 210, the rear projecting tab is removed from the recess 227 and the power is cut-off to the entire device 200. For example if a user removes the rear panel 224 while the device 200 is running, and the germicidal lamp 290 is emitting UV radiation, the device 200 will turn off as soon as the rear projecting tab disengages from the recess 227. Preferably, the device 200 will turn off when the rear panel 224 is removed only a very short distance (e.g., ¼″) from the housing 210. This safety switch operates very similar to the interlocking post 204, as shown in FIG. 3C.
  • FIG. 4[0076]
  • FIG. 4 illustrates yet another embodiment of the housing [0077] 210. In this embodiment, the germicidal lamp 290 maybe removed from the housing 210 by lifting the germicidal lamp 290 out of the housing 210 through the top surface 217. The housing 210 does not have a removable rear panel 224. Instead, a handle 275 is affixed to the germicidal lamp 290. The handle 275 is recessed within the top surface 217 of the housing 210 similar to the handle 202, when the lamp 290 is within the housing 210. To remove the lamp 290, the handle 275 is vertically raised out of the housing 210.
  • The lamp [0078] 290 is situated within the housing 210 in a similar manner as the second array of electrodes 240. That is to say, that when the lamp 290 is pulled vertically out of the top 217 of the housing 210, the electrical circuit that provides power to the lamp 290 is disconnected. The lamp 290 is mounted in a lamp fixture that has circuit contacts which engages the circuit in FIG. 7A. As the lamp 290 and fixture are pulled out, the circuit contacts are disengaged. Further, as the handle 275 is lifted from the housing 210, a cutoff switch will shut the entire device 200 off. This safety mechanism ensures that the device 200 will not operate without the lamp 290 placed securely in the housing 210, preventing an individual from directly viewing the radiation emitted from the lamp 290. Reinserting the lamp 290 into the housing 210 causes the lamp fixture to reengage the circuit contacts as is known in the art. In similar, but less convenient fashion, the lamp 290 may be designed to be removed from the bottom of the housing 210.
  • The germicidal lamp [0079] 290 is a preferably UV-C lamp that preferably emits viewable light and radiation (in combination referred to as radiation or light 280) having wavelength of about 254 nm. This wavelength is effective in diminishing or destroying bacteria, germs, and viruses to which it is exposed. Lamps 290 are commercially available. For example, the lamp 290 maybe a Phillips model TUV 15W/G15 T8, a 15 W tubular lamp measuring about 25 mm in diameter by about 43 cm in length. Another suitable lamp is the Phillips TUV 8WG8 T6, an 8 W lamp measuring about 15 mm in diameter by about 29 cm in length. Other lamps that emit the desired wavelength can instead be used.
  • FIGS. [0080] 5A-5B
  • As previously mentioned, one role of the housing [0081] 210 is to prevent an individual from viewing, by way of example, ultraviolet (UV) radiation generated by a germicidal lamp 290 disposed within the housing 210. FIGS. 5A-5B illustrate preferred locations of the germicidal lamp 290 within the housing 210. FIGS. 5A-5B further show the spacial relationship between the germicidal lamp 290 and the electrode assembly 220, and the germicidal lamp 290 and the inlet 250 and the outlet 260 and the inlet and outlet louvers.
  • In a preferred embodiment, the inner surface [0082] 211 of the housing 210 diffuses or absorbs the UV light emitted from the lamp 290. FIGS. 5A-5B illustrate that the lamp 290 does emit some light 280 directly onto the inner surface 211 of the housing 210. By way of example only, the inner surface 211 of the housing 210 can be formed with anon-smooth finish, or anon-light reflecting finish or color, to also prevent the UV-C radiation from exiting through either the inlet 250 or the outlet 260. The UV portion of the radiation 280 striking the wall 211 will be absorbed and disbursed as indicated above.
  • As discussed above, the fins [0083] 212 covering the inlet 250 and the outlet 260 also limit any line of sight of the user into the housing 210. The fins 212 are vertically oriented within the inlet 250 and the outlet 260. The depth D of each fin 212 is preferably deep enough to prevent an individual from directly viewing the interior wall 211. In a preferred embodiment, an individual cannot directly view the inner surface 211 by moving from side-to-side, while looking into the outlet 260 or the inlet 250. Looking between the fins 212 and into the housing 210 allows an individual to “see through” the device 200. That is, a user can look into the inlet vent 250 or the outlet vent 260 and see out of the other vent. It is to be understood that it is acceptable to see light or a glow coming from within housing 210, if the light has anon-UV wavelength that is acceptable for viewing. In general, an user viewing into the inlet 250 or the outlet 260 maybe able to notice a light or glow emitted from within the housing 210. This light is acceptable to view. In general, when the radiation 280 strikes the interior surface 211 of the housing 210, the radiation 280 is shifted from its U spectrum. The wavelength of the radiation changes from the U spectrum into an appropriate viewable spectrum. Thus, any light emitted from within the housing 210 is appropriate to view.
  • As also discussed above, the housing [0084] 210 is designed to optimize the reduction of microorganisms within the airflow. The efficacy of radiation 280 upon microorganisms depends upon the length of time such organisms are subjected to the radiation 280. Thus, the lamp 290 is preferably located within the housing 210 where the airflow is the slowest. In preferred embodiments, the lamp 290 is disposed within the housing 210 along line A-A (see FIGS. 5A-7). Line A-A designates the largest width and cross-sectional area of the housing 210, perpendicular to the airflow. The housing 210 creates a fixed volume for the air to pass through. In operation, air enters the inlet 250, which has a smaller width, and cross-sectional area, than along line A-A. Since the width and cross-sectional area of the housing 210 along line A-A are larger than the width and cross-sectional area of the inlet 250, the airflow will decelerate from the inlet 250 to the line A-A. By placing the lamp 290 substantially along line A-A, the air will have the longest dwell time as it passes through the radiation 280 emitted by the lamp 290. In other words, the microorganisms within the air will be subjected to the radiation 280 for the longest period possible by placing the lamp 290 along line A-A. It is, however, within the scope of the present invention to locate the lamp 290 anywhere within the housing 210, preferably upstream of the electrode assembly 220.
  • A shell or housing [0085] 270 substantially surrounds the lamp 290. The shell 270 prevents the light 280 from shining directly towards the inlet 250 or the outlet 260. In a preferred embodiment, the interior surface of the shell 270 that faces the lamp 290 is anon-reflective surface. By way of example only, the interior surface of the shell 270 maybe a rough surface, or painted a dark, non-gloss color such as black. The lamp 290, as shown in FIGS. 5A-5B, is a circular tube parallel to the housing 210. In a preferred embodiment, the lamp 290 is substantially the same length as, or shorter than, the fins 212 covering the inlet 250 and outlet 260. The lamp 290 emits the light 280 outward in a 3600 pattern. The shell 270 blocks the portion of the light 280 emitted directly towards the inlet 250 and the outlet 260. As shown in FIGS. 5A and 5B, there is no direct line of sight through the inlet 250 or the outlet 260 that would allow a person to view the lamp 290. Alternatively, the shell 270 can have an internal reflective surface in order to reflect radiation into the air stream.
  • In the embodiment shown in FIG. 5A, the lamp [0086] 290 is located along the side of the housing 210 and near the inlet 250. After the air passes through the inlet 250, the air is immediately exposed to the light 280 emitted by the lamp 290. An elongated “U”-shaped shell 270 substantially encloses the lamp 290. The shell 270 has two mounts to support and electrically connect the lamp 290 to the power supply.
  • In a preferred embodiment, as shown in FIG. 5B, the shell [0087] 270 comprises two separate surfaces. The wall 274 a is located between the lamp 290 and the inlet 250. The first wall 274 a is preferably “U”-shaped, with the concave surface facing the lamp 290. The convex surface of the wall 274 a is preferably a non-reflective surface. Alternatively, the convex surface of the wall 274 a may reflect the light 280 outward toward the passing airflow. The wall 274 a is integrally formed with the removable rear panel 224. When the rear panel 224 is removed from the housing 210, the wall 274 a is also removed, exposing the germicidal lamp 290. The germicidal lamp 290 is easily accessible in order to, as an example, replace the lamp 290 when it expires.
  • The wall [0088] 274 b, as shown in FIG. 5B, is “V”-shaped. The wall 274 b is located between the lamp 290 and the electrode assembly 220 to prevent a user from directly looking through the outlet 260 and viewing the U radiation emitted from the lamp 290. In a preferred embodiment, the wall 274 b is also a non-reflective surface. Alternatively, the wall 274 b maybe a reflective surface to reflect the light 280. It is within the scope of the present invention for the wall 274 b to have other shapes such as, but not limited to, “U”-shaped or “C”-shaped.
  • The shell [0089] 270 may also have fins 272. The fins 272 are spaced apart and preferably substantially perpendicular to the passing airflow. In general, the fins 272 further prevent the light 280 from shining directly towards the inlet 250 and the outlet 260. The fins have a black or non-reflective surface. Alternatively, the fins 272 may have a reflective surface. Fins 272 with a reflective surface may shine more light 280 onto the passing airflow because the light 280 will be repeatedly reflected and not absorbed by a black surface. The shell 270 directs the radiation towards the fins 272, maximizing the light emitted from the lamp 290 for irradiating the passing airflow. The shell 270 and fins 272 direct the radiation 280 emitted from the lamp 290 in a substantially perpendicular orientation to the crossing airflow traveling through the housing 210. This prevents the radiation 280 from being emitted directly towards the inlet 250 or the outlet 260.
  • FIG. 6[0090]
  • FIG. 6 illustrates yet another embodiment of the device [0091] 200. The embodiment shown in FIG. 6 is a smaller, more portable, desk version of the air transporter-conditioner. Air is brought into the housing 210 through the inlet 250, as shown by the arrows marked “IN.” The inlet 250 in this embodiment is an air chamber having multiple vertical slots 251 located along each side. In this embodiment, the slots are divided across the direction of the airflow into the housing 210. The slots 251 preferably are spaced apart a similar distance as the fins 212 in the previously described embodiments, and are substantially the same height as the side walls of the air chamber. In operation, air enters the housing 210 by entering the chamber 250 and then exiting the chamber 250 through the slots 251. The air contacts the interior wall 211 of the housing 210 and continues to travel through the housing 210 towards the outlet 260. Since the rear wall 253 of the chamber is a solid wall, the device 200 only requires a single non-reflective housing 270 located between the germicidal lamp 290 and the electrode assembly 220 and the outlet 260. The housing 270 in FIG. 6 is preferably “U”-shaped, with the convex surface 270 a facing the germicidal lamp 290. The surface 270 a directs the light 280 toward the interior surface 211 of the housing 210 and maximizes the disbursement of radiation into the passing airflow. It is within the scope of the invention for the surface 270 to comprise other shapes such as, but not limited to, a “V”-shaped surface, or to have the concave surface 270 b face the lamp 290. Also in other embodiments the housing 270 can have a reflective surface in order to reflect radiation into the air stream. Similar to the previous embodiments, the air passes the lamp 290 and is irradiated by the light 280 soon after the air enters the housing 210, and prior to reaching the electrode assembly 220.
  • FIGS. [0092] 5A-6 illustrate embodiments of the electrode assembly 220. The electrode assembly 220 comprises a first emitter electrode array 230 and a second particle collector electrode array 240, which is preferably located downstream of the germicidal lamp 290. The specific configurations of the electrode array 220 are discussed below, and it is to be understood that any of the electrode assembly configurations depicted in FIGS. 8A-15C maybe used in the device depicted in FIGS. 2A-6. It is the electrode assembly 220 that creates ions and causes the air to flow electro-kinetically between the first emitter electrode array 230 and the second collector electrode array 240. In the embodiments shown in FIGS. 5A-6, the first array 230 comprises two wire-shaped electrodes 232, while the second array 240 comprises three “U”-shaped electrodes 242. Each “U”-shaped electrode has a nose 246 and two trailing sides 244. It is within the scope of the invention for the first array 230 and the second array 240 to include electrodes having other shapes as mentioned above and described below.
  • Electrical Circuit for the Electro-Kinetic Device: [0093]
  • FIGS. [0094] 7A-7B illustrate a preferred embodiment of an electrical block diagram for the electro-kinetic device 200 with enhanced anti-microorganism capability. FIG. 7A illustrates a preferred electrical block diagram of the germicidal lamp circuit 101. The main components of the circuit 101 are an electromagnetic interference (EMI) filter 110, an electronic ballast 112, and a DC power supply 114. The device 200 has an electrical power cord that plugs into a common electrical wall socket. The (EMI) filter 110 is placed across the incoming 110VAC line to reduce and/or eliminate high frequencies generated by the electronic ballast 112 and the high voltage generator 170. The electronic ballast 112 is electrically connected to the germicidal lamp 290 to regulate, or control, the flow of current through the lamp 290. Electrical components such as the EMI Filter 110 and electronic ballast 112 are well known in the art and do not require a further description. The DC Power Supply 114 receives the 100VAC and outputs 12VDC for the internal logic of the device 200, and 160VDC for the primary side of the transformer 116 (see FIG. 7B).
  • As seen in FIG. 7B, a high voltage pulse generator [0095] 170 is coupled between the first electrode array 230 and the second electrode array 240. The generator 170 receives low input voltage, e.g., 160VDC from DC power supply 114, and generates high voltage pulses of at least 5 KV peak-to-peak with a repetition rate of about 20 KHz. Preferably, the voltage doubler 118 outputs 9 KV to the first array 230, and 18 KV to the second array 240. It is within the scope of the present invention for the voltage doubler 118 to produce a greater or smaller voltage. The pulse train output preferably has a duty cycle of perhaps 10%, but may have other duty cycles, including a 100% duty cycle. The high voltage pulse generator 170 maybe implemented in many ways, and typically will comprise a low voltage converter oscillator 124, operating at perhaps 20 KHz frequency, that outputs low voltage pulses to an electronic switch. Such a switch is shown as an insulated gate bipolar transistor (IGBT) 126. The IGBT 126, or other appropriate switch, couples the low voltage pulses from the oscillator 124 to the input winding of a step-up transformer 116. The secondary winding of the transformer 116 is coupled to the voltage doubler 118, which outputs the high voltage pulses to the first and second array of electrodes 230, 240. In general, the IGBT 126 operates as an electronic on/off switch. Such a transistor is well known in the art and does not require a further description.
  • The converter oscillator [0096] 124 receives electrical signals from the airflow modulating circuit 120, the power setting circuit 122, and the boost timer 128. The airflow rate of the device 200 is primarily controlled by the airflow modulating circuit 120 and the power setting circuit 122. The airflow modulating circuit 120 is a “micro-timing” gating circuit. The airflow modulating circuit 120 outputs an electrical signal that modulates between a “low” airflow signal and a “high” airflow signal. The airflow modulating circuit 120 continuously modulates between these two signals, preferably outputting the “high” airflow signal for 2.5 seconds, and then the “low” airflow signal for 5 seconds. By way of example only, the “high” airflow signal causes the voltage doubler 118 to provide 9 KV to the first array 230, while 18 KV is provided to the second array 240, and the “low” airflow signal causes the voltage doubler 118 to provide 6 KV to the first array 230, while 12 KV is provided to the second array 240. As will be described later, the voltage difference between the first and second array is proportional to the airflow rate of the device 200. In general, a greater voltage differential is created between the first and second array by the “high” airflow signal. It is within the scope of the present invention for the airflow modulating circuit 120 to produce different voltage differentials between the first and second arrays. The various circuits and components comprising the high voltage pulse generator 170 can be fabricated on a printed circuit board mounted within housing 210.
  • The power setting circuit [0097] 122 is a “macro-timing” circuit that can be set, by a control dial 214 (described hereinafter), to a LOW, MED, or HIGH setting. The three settings determine how long the signal generated by the airflow modulating circuit 120 will drive the oscillator 124. When the control dial 214 is set to HIGH, the electrical signal output from the airflow modulating circuit 120, modulating between the high and low airflow signals, will continuously drive the connector oscillator 124. When the control dial 214 is set to MED, the electrical signal output from the airflow modulating circuit 120 will cyclically drive the oscillator 124 for 25 seconds, and then drop to a zero or a lower voltage for 25 seconds. Thus, the airflow rate through the device 200 is slower when the dial 214 is set to MED than when the control dial 214 is set to HIGH. When the control dial 214 is set to LOW, the signal from the airflow modulating circuit 120 will cyclically drive the oscillator 124 for 25 seconds, and then drop to a zero or a lower voltage for 75 seconds. It is within the scope and spirit of the present invention for the HIGH, MED, and LOW settings to drive the oscillator 124 for longer or shorter periods of time.
  • The boost timer [0098] 128 sends an electrical signal to the airflow modulating circuit 120 and the powersetting circuit 122 when the boost button 216 is depressed. The boost timer 128 when activated, instructs the airflow modulating circuit 120 to continuously drive the converter oscillator 124 as if the device 200 was set to the HIGH setting. The boost timer 128 also sends a signal to the power setting circuit 122 that shuts the powersetting circuit 122 temporarily off. In effect, the boost timer 128 overrides the setting that the device 200 is set to by the dial 214. Therefore, the device 200 will run at a maximum airflow rate for a 5 minute period.
  • FIG. 7B further illustrates some preferred timing and maintenance features of the device [0099] 200. The device 200 has a 2 week timer 130 that provides a reminder to the user to clean the device 200, and an arc sensing circuit 132 that may shut the device 200 completely of fin case of arcing.
  • Electrode Assembly with First and Second Electrodes: [0100]
  • FIGS. [0101] 8A-8F
  • FIGS. [0102] 8A-8F illustrate various configurations of the electrode assembly 220. The output from high voltage pulse generator unit 170 is coupled to an electrode assembly 220 that comprises a first electrode array 230 and a second electrode array 240. Again, instead of arrays, a single electrode or single conductive surface can be substituted for one or both array 230 and array 240.
  • The positive output terminal of unit [0103] 170 is coupled to first electrode array 230, and the negative output terminal is coupled to second electrode array 240. It is believed that with this arrangement the net polarity of the emitted ions is positive, e.g., more positive ions than negative ions are emitted. This coupling polarity has been found to work well, including minimizing unwanted audible electrode vibration or hum. However, while generation of positive ions is conducive to a relatively silent airflow, from a health standpoint, it is desired that the output airflow be richer in negative ions, not positive ions. It is noted that in some embodiments, one port (preferably the negative port) of the high voltage pulse generator 170 need not be connected to the second array of electrodes 240. Nonetheless, there will be an “effective connection” between the second array electrodes 242 and one output port of the high voltage pulse generator 170, in this instance, via ambient air. Alternatively the negative output terminal of unit 170 can be connected to the first electrode array 230 and the positive output terminal can be connected to the second electrode array 240.
  • With this arrangement an electrostatic flow of air is created, going from the first electrode array [0104] 230 towards the second electrode array 240. (This flow is denoted “OUT” in the figures.) Accordingly electrode assembly 220 is mounted within transporter system 100 such that second electrode array 240 is closer to the OUT vents and first electrode array 230 is closer to the IN vents.
  • When voltage or pulses from high voltage pulse generator [0105] 170 are coupled across first and second electrode arrays 230 and 240, a plasma-like field is created surrounding electrodes 232 in first array 230. This electric field ionizes the ambient air between the first and second electrode arrays and establishes an “OUT” airflow that moves towards the second array 240. It is understood that the “IN” flow enters via vent(s) 104 or 250, and that the “OUT” flow exits via vent(s) 106 or 260.
  • Ozone and ions are generated simultaneously by the first array electrodes [0106] 232, essentially as a function of the potential from generator 170 coupled to the first array of electrodes or conductive surfaces. Ozone generation can be increased or decreased by increasing or decreasing the potential at the first array 230. Coupling an opposite polarity potential to the second array electrodes 242 essentially accelerates the motion of ions generated at the first array 230, producing the airflow denoted as “OUT” in the figures. As the ions and ionized particles move toward the second array 240, the ions and ionized particles push or move air molecules toward the second array 240. The relative velocity of this motion maybe increased, by way of example, by decreasing the potential at the second array 240 relative to the potential at the first array 230.
  • For example, if +10 KV were applied to the first array electrode(s) [0107] 232, and no potential were applied to the second array electrode(s) 242, a cloud of ions (whose net charge is positive) would form adjacent the first electrode array 230. Further, the relatively high 10 KV potential would generate substantial ozone. By coupling a relatively negative potential to the second array electrode(s) 242, the velocity of the air mass moved by the net emitted ions increases.
  • On the other hand, if it were desired to maintain the same effective outflow (OUT) velocity, but to generate less ozone, the exemplary 10 KV potential could be divided between the electrode arrays. For example, generator [0108] 170 could provide +4 KV (or some other fraction) to the first array electrodes 232 and −6 KV (or some other fraction) to the second array electrodes 242. In this example, it is understood that the +4 KV and the −6 KV are measured relative to ground. Understandably it is desired that the unit 100 operates to output appropriate amounts of ozone. Accordingly, the high voltage is preferably fractionalized with about +4 KV applied to the first array electrodes 232 and about −6 KV applied to the second array electrodes 242.
  • In the embodiments of FIGS. 8A and 8B, electrode assembly [0109] 220 comprises a first array 230 of wire-shaped electrodes 232, and a second array 240 of generally “U”-shaped electrodes 242. In preferred embodiments, the number N1 of electrodes comprising the first array 230 can preferably differ by one relative to the number N2 of electrodes comprising the second array 240. In many of the embodiments shown, N2>N1. However, if desired, additional first electrodes 232 could be added at the outer ends of array 230 such that N1>N2, e.g., five first electrodes 232 compared to four second electrodes 242.
  • As previously indicated, first or emitter electrodes [0110] 232 are preferably lengths of tungsten wire, whereas electrodes 242 are formed from sheet metal, preferably stainless steel, although brass or other sheet metal could be used. The sheet metal is readily configured to define side regions 244 and a bulbous nose region 246, forming the hollow, elongated “U”-shaped electrodes 242. While FIG. 8A depicts four electrodes 242 in second array 240 and three electrodes 232 in first array 230, as noted previously, other numbers of electrodes in each array could be used, preferably retaining a symmetrically staggered configuration as shown. It is seen in FIG. 8A that while particulate matter 60 is present in the incoming (IN) air, the outflow (OUT) air is substantially devoid of particulate matter, which adheres to the preferably large surface area provided by the side regions 244 of the second array electrodes 242.
  • FIG. 8B illustrates that the spaced-apart configuration between the first and second arrays [0111] 230,240 is staggered. Preferably, each first array electrode 232 is substantially equidistant from two second array electrodes 242. This symmetrical staggering has been found to be an efficient electrode placement. Preferably, in this embodiment, the staggering geometry is symmetrical in that adjacent electrodes 232 or adjacent electrodes 242 are spaced-apart a constant distance, Y1 and Y2 respectively. However, a non-symmetrical configuration could also be used. Also, it is understood that the number of electrodes 232 and 242 may differ from what is shown.
  • In the embodiment of FIGS. [0112] 8A, typically dimensions are as follows: diameter of electrodes 232, R1, is about 0.08 mm, distances Y1 and Y2 are each about 16 mm, distance X1 is about 16 mm, distance L is about 20 mm, and electrode heights Z1 and Z2 are each about 1 m. The width W of electrodes 242 is preferably about 4 mm, and the thickness of the material from which electrodes 242 are formed is about 0.5 mm. Of course, other dimensions and shapes could be used. For example, preferred dimensions for distance X1 may vary between 12-30 mm, and the distance Y2 may vary between 15-30 mm. It is preferred that electrodes 232 have a small diameter, such as R1 shown in FIG. 8B. The small diameter electrode generates a high voltage field and has a high emissivity. Both characteristics are beneficial for generating ions. At the same time, it is desired that electrodes 232 (as well as electrodes 242) be sufficiently robust to withstand occasional cleaning.
  • Electrodes [0113] 232 in first array 230 are electrically connected to a first (preferably positive) output port of high voltage pulse generator 170 by a conductor 234. Electrodes 242 in second array 240 are electrically connected to a second (preferably negative) output port of high voltage generator 170 by a conductor 249. The first and second electrodes maybe electrically connected to the high voltage generator 170 at various locations. Byway of example only, FIG. 8B depicts conductor 249 making connection with some electrodes 242 internal to nose 246, while other electrodes 242 make electrical connection to conductor 249 elsewhere on the electrode 242. Electrical connection to the various electrodes 242 could also be made on the electrode external surface, provided no substantial impairment of the outflow airstream results; however it has been found to be preferable that the connection is made internally.
  • In this and the other embodiments to be described herein, ionization appears to occur at the electrodes [0114] 232 in the first electrode array 230, with ozone production occurring as a function of high voltage arcing. For example, increasing the peak-to-peak voltage amplitude and/or duty cycle of the pulses from the high voltage pulse generator 170 can increase ozone content in the output flow of ionized air. If desired, user-control S2 or the dial 214 can be used to somewhat vary ozone content by varying amplitude and/or duty cycle. Specific circuitry for achieving such control is known in the art and need not be described in detail herein.
  • Note the inclusion in FIGS. 8A and 8B of at least one output controlling electrodes [0115] 243, preferably electrically coupled to the same potential as the second array electrodes 242. Electrode 243 preferably defines a pointed shape in side profile, e.g., a triangle. The sharp point on electrodes 243 causes generation of substantial negative ions (since the electrode is coupled to relatively negative high potential). These negative ions neutralize excess positive ions otherwise present in the output airflow, such that the “OUT” flow has a net negative charge. Electrode 243 is preferably manufactured from stainless steel, copper, or other conductor material, and is perhaps 20 mm high and about 12 mm wide at the base. The inclusion of one electrode 243 has been found sufficient to provide a sufficient number of output negative ions, but more such electrodes maybe included.
  • In the embodiments of FIGS. 8A, 8B and [0116] 8C, each “U”-shaped electrode 242 has two trailing surface or sides 244 that promote efficient kinetic transport of the outflow of ionized air and ozone. For the embodiment of FIG. 8C, there is the inclusion on at least one portion of a trailing edge of a pointed electrode region 243′. Electrode region 243′ helps promote output of negative ions, in the same fashion that was previously described with respect to electrodes 243, as shown in FIGS. 8A and 8B.
  • In FIG. 8C and the figures to follow, the particulate matter is omitted for ease of illustration. However, from what was shown in FIGS. [0117] 8A-8B, particulate matter will be present in the incoming air, and will be substantially absent from the outgoing air. As has been described, particulate matter 60 typically will be electrostatically precipitated upon the surface area of electrodes 242.
  • As discussed above and as depicted by FIG. 8C, it is relatively unimportant where on an electrode array the electrical connection is made with the high voltage generator [0118] 170. In this embodiment, first array electrodes 232 are shown electrically connected together at their bottom regions by conductor 234, whereas second array electrodes 242 are shown electrically connected together in their middle regions by the conductor 249. Both arrays maybe connected together in more than one region, e.g., at the top and at the bottom. It is preferred that the wire or strips or other inter-connecting mechanisms be at the top, bottom, or periphery of the second array electrodes 242, so as to minimize obstructing stream air movement through the housing 210.
  • It is noted that the embodiments of FIGS. 8C and 8D depict somewhat truncated versions of the second electrodes [0119] 242. Whereas dimension L in the embodiment of FIGS. 8A and 8B was about 20 mm, in FIGS. 8C and 8D, L has been shortened to about 8 mm. Other dimensions in FIG. 8C preferably are similar to those stated for FIGS. 8A and 8B. It will be appreciated that the configuration of second electrode array 240 in FIG. 8C can be more robust than the configuration of FIGS. 8A and 8B, by virtue of the shorter trailing edge geometry. As noted earlier, a symmetrical staggered geometry for the first and second electrode arrays is preferred for the configuration of FIG. 8C.
  • In the embodiment of FIG. 8D, the outermost second electrodes, denoted [0120] 242-1 and 242-4, have substantially no outermost trailing edges. Dimension L in FIG. 8D is preferably about 3 mm, and other dimensions may be as stated for the configuration of FIGS. 8A and 8B. Again, the ratio of the radius or surface areas between the first electrode 232 and the second electrodes 242 for the embodiment of FIG. 8D preferably exceeds about 20:1.
  • FIGS. 8E and 8F depict another embodiment of electrode assembly [0121] 220, in which the first electrode array 230 comprises a single wire electrode 232, and the second electrode array 240 comprises a single pair of curved “L”-shaped electrodes 242, in cross-section. Typical dimensions, where different than what has been stated for earlier-described embodiments, are X1≈12 mm, Y2≈5 mm, and L1≈3 mm. The effective surface area or radius ratio between the electrode arrays is again greater than about 20:1. The fewer electrodes comprising assembly 220 in FIGS. 8E and 8F promote economy of construction, and ease of cleaning, although more than one electrode 232, and more than two electrodes 242 could of course be employed. This particular embodiment incorporates the staggered symmetry described earlier, in which electrode 232 is equidistant from two electrodes 242. Other geometric arrangements, which may not be equidistant, are within the spirit and scope of the invention.
  • Electrode Assembly With an Upstream Focus Electrode: [0122]
  • FIGS. [0123] 9A-9B
  • The embodiments illustrated in FIGS. [0124] 9A-9B are somewhat similar to the previously described embodiments in FIGS. 8A-8B. The electrode assembly 220 includes a first array of electrodes 230 and a second array of electrodes 240. Again, for this and the other embodiments, the term “array of electrodes” may refer to a single electrode or a plurality of electrodes. Preferably, the number of electrodes 232 in the first array of electrodes 230 will differ by one relative to the number of electrodes 242 in the second array of electrodes 240. The distances L, X1, Y1, Y2, Z1 and Z2 for this embodiment are similar to those previously described in FIG. 8A.
  • As shown in FIG. 9A, the electrode assembly [0125] 220 preferably adds a third, or leading, or focus, or directional electrode 224 a, 224 b, 224 c (generally referred to as “electrode 224”) upstream of each first electrode 232-1,232-2,232-3. The focus electrode 224 creates an enhanced airflow velocity exiting the devices 100 or 200. In general, the third focus electrode 224 directs the airflow, and ions generated by the first electrode 232, towards the second electrodes 242. Each third focus electrode 224 is a distance X2 upstream from at least one of the first electrodes 232. The distance X2 is preferably 5-6 mm, or four to five diameters of the focus electrode 224. However, the third focus electrode 224 can be further from, or closer to, the first electrode 232.
  • The third focus electrode [0126] 224 illustrated in FIG. 9A is a rod-shaped electrode. The third focus electrode 224 can also comprise other shapes that preferably do not contain any sharp edges. The third focus electrode 224 is preferably manufactured from material that will not erode or oxidize, such as stainless steel. The diameter of the third focus electrode 224, in a preferred embodiment, is at least fifteen times greater than the diameter of the first electrode 232. The diameter of the third focus electrode 224 can be larger or smaller. The diameter of the third focus electrode 224 is preferably large enough so that third focus electrode 224 does not function as an ion emitting surface when electrically connected with the first electrode 232. The maximum diameter of the third focus electrode 224 is somewhat constrained. As the diameter increases, the third focus electrode 224 will begin to noticeably impair the airflow rate of the units 100 or 200. Therefore, the diameter of the third electrode 224 is balanced between the need to form a non-ion emitting surface and airflow properties of the unit 100 or 200.
  • In a preferred embodiment, each third focus electrode [0127] 224 a, 224 b, 224 c are electrically connected with the first array 230 and the high voltage generator 170 by the conductor 234. As shown in FIG. 9A, the third focus electrodes 224 are electrically connected to the same positive outlet of the high voltage generator 170 as the first array 230. Accordingly, the first electrode 232 and the third focus electrode 224 generate a positive electrical field. Since the electrical fields generated by the third focus electrode 224 and the first electrode 232 are both positive, the positive field generated by the third focus electrode 224 can push, or repel, or direct, the positive field generated by the first electrode 232 towards the second array 240. For example, the positive field generated by the third focus electrode 224 a will push, or repel, or direct, the positive field generated by the first electrode 232-1 towards the second array 240. In general, the third focus electrode 224 shapes the electrical field generated by each electrode 232 in the first array 230. This shaping effect is believed to decrease the amount of ozone generated by the electrode assembly 220 and increases the airflow of the units 100 and 200.
  • The particles within the airflow are positively charged by the ions generated by the first electrode [0128] 232. As previously mentioned, the positively charged particles are collected by the negatively charged second electrodes 242. The third focus electrode 224 also directs the airflow towards the trailing sides 244 of each second electrode 242. For example, it is believed that the airflow will travel around the third focus electrode 224, partially guiding the airflow towards the trailing sides 244, improving the collection rate of the electrode assembly 220.
  • The third focus electrode [0129] 224 maybe located at various positions upstream of each first electrode 232. Byway of example only, a third focus electrode 224 b is located directly upstream of the first electrode 232-2 so that the center of the third focus electrode 224 b is in-line and symmetrically aligned with the first electrode 232-2, as shown by extension line B. Extension line B is located midway between the second electrode 242-2 and the second electrode 242-3. Alternatively, a third focus electrode 224 may also be located at an angle relative to the first electrode 232. For example, a third focus electrode 224 a maybe located upstream of the first electrode 232-1 along a line extending from the middle of the nose 246 of the second electrode 242-2 through the center of the first electrode 232-1, as shown by extension line A. The third focus electrode 224 a is in-line and symmetrically aligned with the first electrode 232-1 along extension line A. Similarly, the third electrode 224 c is located upstream to the first electrode 2323 along a line extending from the middle of the nose 246 of the second electrode 242-3 through the first electrode 232-3, as shown by extension line C. The third focus electrode 224 c is in-line and symmetrically aligned with the first electrode 232-3 along extension line C. It is within the scope of the present invention for the electrode assembly 220 to include third focus electrodes 224 that are both directly upstream and at an angle to the first electrodes 232, as depicted in FIG. 9A. Thus, the focus electrodes 224 fan out relative to the first electrodes 232.
  • FIG. 9B illustrates that an electrode assembly [0130] 220 may contain multiple third focus electrodes 224 upstream of each first electrode 232. By way of example only, the third focus electrode 224 a 2 is in-line and symmetrically aligned with the third focus electrode 224 a 1, as shown by extension line A. In a preferred embodiment, only the third focus electrodes 224 a 1, 224 b 1,224 c 1 are electrically connected to the high voltage generator 170 by conductor 234. Accordingly, not all of the third electrodes 224 are at the same operating potential. In the embodiment shown in FIG. 9B, the third focus electrodes 224 a 1, 224 b 1, 224 c 1 are at the same electrical potential as the first electrodes 232, while the third focus electrodes 224 a 2, 224 b 2, 224 c 2 are floating. Alternatively, the third focus electrodes 224 a 2,224 b 2 and 224 c 2 maybe electrically connected to the high voltage generator 170 by the conductor 234.
  • FIG. 9B illustrates that each second electrode [0131] 242 may also have a protective end 241. In the previous embodiments, each “U”-shaped second electrode 242 has an open end. Typically, the end of each trailing side or side wall 244 contains sharp edges. The gap between the trailing sides or side walls 244, and the sharp edges at the end of the trailing sides or side walls 244, generate unwanted eddy currents. The eddy currents create a “backdraft,” or airflow traveling from the outlet towards the inlet, which slows down the airflow rate of the units 100 or 200.
  • In a preferred embodiment, the protective end [0132] 241 is created by shaping, or rolling, the trailing sides or side walls 244 inward and pressing them together, forming a rounded trailing end with no gap between the trailing sides or side walls of each second electrode 242. Accordingly, the side walls 244 have outer surfaces, and the end of the side walls 244 are bent back inward and towards the nose 246 so that the outer surface of the side walls 244 are adjacent to, or face, or touch each other to form a smooth trailing edge on the second electrode 242. If desired, it is within the scope of the invention to spot weld the rounded ends together along the length of the second electrode 242. It is also within the scope of the present invention to form the protective end 241 by other methods such as, but not limited to, placing a strap of plastic across each end of the trailing sides 244 for the full length of the second electrode 242. The rounded or capped end is an improvement over the previous electrodes 242 without a protective end 241. Eliminating the gap between the trailing sides 244 also reduces or eliminates the eddy currents typically generated by the second electrode 242. The rounded protective end also provides a smooth surface for purpose of cleaning the second electrode. In a preferred embodiment, the second or collector electrode 242 is a one-piece, integrally formed, electrode with a protective end.
  • FIGS. [0133] 10A-10D
  • FIG. 10A illustrates an electrode assembly [0134] 220 including a first array of electrodes 230 having three wire-shaped first electrodes 232-1, 232-2, 232-3 (generally referred to as “electrode 232”) and a second array of electrodes 240 having four “U”-shaped second electrodes 242-1, 242-2, 242-3, 242-4 (generally referred to as “electrode 242”). Each first electrode 232 is electrically connected to the high voltage generator 170 at the bottom region, whereas each second electrode 242 is electrically connected to the high-voltage generator 170 in the middle to illustrate that the first and second electrodes 232, 242 can be electrically connected in a variety of locations.
  • The second electrode [0135] 242 in FIG. 10A is a similar version of the second electrode 242 shown in FIG. 8C. The distance L has been shortened to about 8 mm, while the other dimensions X1, Y1, Y2, Z1, Z2 are similar to those shown in FIG. 8A.
  • A third leading or focus electrode [0136] 224 is located upstream of each first electrode 232. The inner most third focus electrode 224 b is located directly upstream of the first electrode 232-2, as shown by extension line B. Extension line B is located midway between the second electrodes 242-2,242-3. The third focus electrodes 224 a, 224 c are at an angle with respect to the first electrodes 232-1,232-3. For example, the third focus electrode 224 a is upstream to the first electrode 232-1 along a line extending from the middle of the nose 246 of the second electrode 242-2 extending through the center of the first electrode 232-1, as shown by extension line A. The third electrode 224 c is located upstream of the first electrode 232-3 along a line extending from the center of the nose 246 of the second electrode 242-3 through the center of the first electrode 232-3, as shown by extension line C. Preferably, the focus electrodes 224 fan out relative to the first electrodes 232 as an aid for directing the flow of ions and charged particles. FIG. 10B illustrates that the third focus electrodes 224 and the first electrode 232 may be electrically connected to the high voltage generator 170 by conductor 234.
  • FIG. 10C illustrates that a pair of third focus electrodes [0137] 224 may be located upstream of each first electrode 232. Preferably, the multiple third focus electrodes 224 are inline and symmetrically aligned with each other. For example, the third focus electrode 224 a 2 is in-line and symmetrically aligned with the third focus electrode 224 a 1, along extension line A. As previously mentioned, preferably only third focus electrodes 224 a 1, 224 b 1, 224 c 1 are electrically connected with the first electrodes 232 by conductor 234. It is also within the scope of the present invention to have none or all of the third focus electrodes 224 electrically connected to the high voltage generator 170.
  • FIG. 10D illustrates third focus electrodes [0138] 224 added to the electrode assembly 220 shown in FIG. 8D. Preferably, a third focus electrode 224 is located upstream of each first electrode 232. For example, the third focus electrode 224 b is in-line and symmetrically aligned with the first electrode 232-2, as shown by extension line B. Extension line B is located midway between the second electrodes 242-2, 242-3. The third focus electrode 224 a is in-line and symmetrically aligned with the first electrode 232-1, as shown by extension line A. Similarly, the third electrode 224 c is in-line and symmetrically aligned with the first electrode 232-3, as shown by extension line C. Extension lines A and C extend from the middle of the nose 246 of the “U”-shaped second electrodes 242-2,242-3 through the first electrodes 232-1,232-3, respectively. In a preferred embodiment, the third electrodes 224 a, 224 b, 224 c with the high voltage generator 170 by the conductor 234. This embodiment can also include a pair of third focus electrodes 224 upstream of each first electrode 232 similar to the embodiment depicted in FIG. 10C.
  • FIGS. [0139] 11A-11C
  • FIGS. [0140] 11A-11C illustrate that the electrode assembly 220 shown in FIG. 8E may include a third focus electrode 224 upstream of the first array of electrodes 230 comprising a single wire electrode 232. Preferably, the center of the third focus electrode 224 is in-line and symmetrically aligned with the center of the first electrode 232, as shown by extension line B. Extension line B is located midway between the second electrodes 242. The distances X1, X2, Y1, Y2, Z1 and Z2 are similar to the embodiments previously described. The first electrode 232 and the second electrodes 242 maybe electrically connected to the high-voltage generator 170 by conductor 234, 249 respectively. It is within the scope of the present invention to connect the first and second electrodes to opposite ends of the high voltage generator 170 (e.g., the first electrode 232 may be negatively charged and the second electrode 242 maybe positively charged). In a preferred embodiment, the third focus electrode 224 is also electrically connected to the high voltage generator 170.
  • FIG. 11B illustrates that a pair of third focus electrodes [0141] 224 a, 224 b maybe located upstream of the first electrode 232. The third focus electrodes 224 a, 224 b are in-line and symmetrically aligned with the first electrode 232, as shown by extension line B. Extension line B is located midway between the second electrodes 242. Preferably, the third focus electrode 224 b is upstream of third focus electrode 224 a a distance equal to the diameter of a third focus electrode 224. In a preferred embodiment, only the third focus electrode 224 a is electrically connected to the high voltage generator 170. It is within the scope of the present invention to electrically connect both third focus electrodes 224 a, 224 b to the high voltage generator 170.
  • FIG. 11C illustrates that each third focus electrode [0142] 224 can be located at an angle with respect to the first electrode 232. Similar to the previous embodiments, the third focus electrode 224 a 1 and 224 b 1 is located a distance X2 upstream from the first electrode 232. By way of example only, the third focus electrodes 224 a 1, 224 a 2 are located along a line extending from the middle of the second electrode 242-2 through the center of the first electrode 232, as shown by extension line A. Similarly, the third focus electrodes 224 b 1, 224 b 2 are along a line extending from the middle of the second electrode 242-1 through the middle of the first electrode 232, as shown by extension line B. The third focus electrode 224 a 2 is in-line and symmetrically aligned with the third focus electrode 224 a 1 along extension line A. Similarly, the third focus electrode 224 b 2 is in line and symmetrically aligned with the third focus electrode 224 b 1, along extension line B. The third focus electrodes 224 are fanned out and form a “V” pattern upstream of first electrode 232. In a preferred embodiment, only the third focus electrodes 224 a 1 and 224 b 1 are electrically connected to the high-voltage generator 170 by conductor 234. It is within the scope and spirit of the invention to electrically connect the third focus electrodes 224 a and 224 b 2 to the high voltage generator 170.
  • FIGS. [0143] 12A-12B
  • The previously described embodiments of the electrode assembly [0144] 220 disclose a rod-shaped third focus electrode 224 upstream of the first array of electrodes 230. FIG. 12A illustrates an alternative configuration for the third focus electrode 224. Byway of example only, the electrode assembly 220 may include a “U”-shaped or possibly “C”-shaped third focus electrode 224 upstream of each first electrode 232. The third focus electrode 224 may also have other curved configurations such as, but not limited to, circular-shaped, elliptical-shaped, parabolically-shaped, and other concave shapes facing the first electrode 232. In a preferred embodiment, the third focus electrode 224 has holes 225 extending through, forming a perforated surface to minimize the resistance of the third focus electrode 224 on the airflow rate.
  • In a preferred embodiment, the third focus electrode [0145] 224 is electrically connected to the high voltage generator 170 by conductor 234. The third focus electrode 224 in FIG. 12A is preferably not an ion emitting surface. Similar to previous embodiments, the third focus electrode 224 generates a positive electric field and pushes or repels the electric field generated by the first electrode 232 towards the second array 240.
  • FIG. 12B illustrates that a perforated “U”-shaped or “C”-shaped third focus electrode [0146] 224 can be incorporated into the electrode assembly 220 shown in FIG. 8A. Even though only two configurations of the electrode assembly 220 are shown with the perforated “U”-shaped third focus electrode 224, all the embodiments described in FIGS. 8A-15C may incorporate the perforated “U”-shaped third focus electrode 224. It is also within the scope of the invention to have multiple perforated “U”-shaped third focus electrodes 224 upstream of each first electrode 232. Further in other embodiments the “U”-shaped third focus electrode 224 can be made of a screen or a mesh.
  • FIG. 12C illustrates third focus electrodes [0147] 224 similar to those depicted in FIG. 12B, except that the third focus electrodes 224 are rotated by 180° to preset a convex surface facing to the first electrodes 232 in order to focus and direct the field of ions and airflow from the first electrode 232 toward the second array of electrodes 240. These third focus electrodes 224 shown in FIGS. 12A-12C are located along extension lines A, B, C similar to previously described embodiments.
  • Electrode Assembly With a Downstream Trailing Electrode: [0148]
  • FIGS. [0149] 13A-13C
  • FIGS. [0150] 13A-13C illustrate an electrode assembly 220 having an array of trailing electrodes 245 added to an electrode assembly 220 similar to that shown in FIG. 11A. It is understood that an alternative embodiment similar to FIG. 13A may include a trailing electrode or electrodes without any focus electrodes and be within the spirit and scope of the invention.
  • Referring now to FIGS. [0151] 13A-13B, each trailing electrode 245 is located downstream of the second array of electrodes 240. Preferably, the trailing electrodes 245 are located downstream from each second electrode 242 by at least three times the radius R2 (see FIG. 13B). Further, the trailing electrodes 245 are preferably directly downstream of each second electrode 242 so as not to interfere with the flow of air. Also, the trailing electrode 245 is aerodynamically smooth, for example, circular, elliptical, or teardrops shaped in cross-section SO as not to unduly interfere with the smoothness of the airflow thereby. In a preferred embodiment, the trailing electrodes 245 are electrically connected to the same outlet of the high voltage generator 170 as the second array of electrodes 240. As shown in FIG. 13A, the second electrodes 242 and the trailing electrodes 245 have a negative electrical charge. This arrangement can introduce more negative charges into the air stream. Alternatively, the trailing electrodes 245 can have a floating potential if they are not electrically connected to the second electrode 242 or the high voltage generator 170. The trailing electrodes 245 can also be grounded in other embodiments.
  • When the trailing electrodes [0152] 245 are electrically connected to the high voltage generator 170, the positively charged particles within the airflow are also attracted to, and collect on, the trailing electrodes 245. In an electrode assembly 220 with no trailing electrode 245, most of the particles will collect on the surface area of the second electrodes 242. However, some particles will pass through the unit 200 without being collected by the second electrodes 242. Thus, the trailing electrodes 245 serve as a second surface area to collect the positively charged particles. The trailing electrodes 245, having the same polarity as the second electrodes 242, also deflect charged particles toward the second electrodes 242.
  • The trailing electrodes [0153] 245 preferably also emit a small amount of negative ions into the airflow. The negative ions emitted by the trailing electrode 245 attempt to neutralize the positive ions emitted by the first electrodes 232. If the positive ions emitted by the first electrodes 232 are not neutralized before the airflow reaches the outlet 260, the outlet fins 212 may become electrically charged, and particles within the airflow may tend to stick to the fins 212. If this occurs, the particles collected by the fins 212 will eventually block or minimize the airflow exiting the unit 200.
  • FIG. 13C illustrates another embodiment of the electrode assembly [0154] 200, having trailing electrodes 245 added to an embodiment similar to that shown in FIG. 11C. The trailing electrodes 245 are located downstream of the second array 240 similar to the previously described embodiments above. It is within the scope of the present invention to electrically connect the trailing electrodes 245 to the high voltage generator 170. The trailing electrodes 245 emit negative ions to neutralize the positive ions emitted by the first electrode 232. As shown in FIG. 13C, all of the third focus electrodes 224 are electrically connected to the high voltage generator 170. In a preferred embodiment, only the third focus electrodes 224 a 1, 224 b 1 are electrically connected to the high voltage generator 170, and the third focus electrodes 224 a 2, 224 b 2 have a floating potential.
  • Electrode Assemblies With Various Combinations of Focus Electrodes. Trailing Electrodes and Enhanced Second Electrodes With Protective Ends: [0155]
  • FIGS. [0156] 14A-14D
  • FIG. 14A illustrates an electrode assembly [0157] 220 that includes a first array of electrodes 230 having two wire-shaped electrodes 232-1, 232-2 (generally referred to as “electrode 232”) and a second array of electrodes 240 having three “U”-shaped electrodes 242-1, 242-2, 242-3 (generally referred to as “electrode 242”). Upstream from each first electrode 232, at a distance X2, is a third focus electrode 224. Each third focus electrode 224 a, 224 b is at an angle with respect to a first electrode 232. For example, the third focus electrode 224 a is preferably along a line extending from the middle of the nose 246 of the innermost second electrode 242-2 through the center of the first electrode 232-1, as shown by extension line A. The third focus electrode 224 a is in-line and symmetrically aligned with the first electrode 232-1 along extension line A. Similarly, the third focus electrode 224 b is located along a line extending from middle of the nose 246 of the second electrode 242-2 through the center of the first electrode 232-2, as shown by extension line B. The third focus electrode 224 b is in-line and symmetrically aligned with the first electrode 232-2 along extension line B. As previously described, the diameter of each third focus electrode 224 is preferably at least fifteen times greater than the diameter of the first electrode 232. As shown in FIG. 14A, and similar to the embodiment shown in FIG. 9B, each second electrode preferably has a protective end 241. Similar to previous embodiments, the third focus electrodes 224 are preferably electrically connected to the high voltage generator 170. It is within the spirit and scope of the invention to not electrically connect the third focus electrodes 224 with the high voltage generator 170.
  • FIG. 14B illustrates that multiple third focus electrodes [0158] 224 maybe located upstream of each first emitter electrode 232. For example, the third focus electrode 224 a 2 is inline and symmetrically aligned with the third focus electrode 224 a 1 along extension line A. Similarly, the third focus electrode 224 b 2 is in-line and symmetrically aligned with the third focus electrode 242 b 1 along extension line B. It is within the scope of the present invention to electrically connect all, or none of, the third focus electrodes 224 to the high-voltage generator 170. In a preferred embodiment, only the third focus electrodes 224 a 1, 224 b 1 are electrically connected to the high voltage generator 170, while the third focus electrodes 224 a 2, 224 b 2 have a floating potential.
  • FIG. 14C illustrates that the electrode assembly [0159] 220 shown in FIG. 14A may also include a trailing electrode 245 downstream of each second electrode 242. Each trailing electrode 245 is in-line with the second electrode 242 to minimize the interference with the airflow passing the second electrode 242. Each trailing electrode 245 is preferably located a distance downstream of each second electrode 242 equal to at least three times the width W of the second electrode 242. It is within the scope of the present invention to locate the trailing electrode 245 at other distances downstream of the second electrode 242. The diameter of the trailing electrode 245 is preferably no greater than the width W of the second electrode 242 to limit the interference of the airflow coming off the second electrode 242.
  • Another aspect of the trailing electrode [0160] 245 is to direct the air trailing off the second electrode 242 to provide a more laminar flow of air exiting the outlet 260. Yet another aspect of the trailing electrode 245, as previously mentioned above, is to neutralize the positive ions generated by the first array 230 and collect particles within the airflow. As shown in FIG. 14C, each trailing electrode 245 is electrically connected to a second electrode 242 by a conductor 248. Similar to previous embodiments, the trailing electrode 245 has the same polarity as the second electrode 242, and serves as a collecting surface, similar to the second electrode 242, to attract the oppositely charged particles in the airflow. Alternatively, the trailing electrode may be connected to a ground or having a floating potential.
  • FIG. 14D illustrates that a pair of third focus electrodes [0161] 224 maybe located upstream of each first electrode 232. For example, the third focus electrode 224 a 2 is upstream of the third focus electrode 224 a 1 so that the third focus electrodes 224 a 1, 224 a 2 are in-line and symmetrically aligned with each other along extension line A. Similarly, the third focus electrode 224 b 2 is in line and symmetrically aligned with the third focus electrode 224 b 1 along extension line B. As previously described, preferably only the third focus electrodes 224 a 1, 224 b 1 are electrically connected to the high voltage generator 170, while the third focus electrodes 224 a 2, 224 b 2 have a floating potential. It is within the spirit and scope of the present invention to electrically connect all, or none, of the third focus electrodes to the high voltage generator 170.
  • Electrode Assemblies With Second Collector Electrodes Having Interstitial Electrodes: [0162]
  • FIGS. [0163] 14E-14F
  • FIG. 14E illustrates another embodiment of the electrode assembly [0164] 220 with an interstitial electrode 246. In this embodiment, the interstitial electrode 246 is located midway between the second electrodes 242. For example, the interstitial electrode 246 a is located midway between the second electrodes 242-1, 242-2, while the interstitial electrode 246 b is located midway between second electrodes 242-2, 242-3. Preferably, the interstitial electrode 246 a, 246 b are electrically connected to the first electrodes 232, and generate an electrical field with the same positive or negative charge as the first electrodes 232. The interstitial electrode 246 and the first electrode 232 then have the same polarity. Accordingly, particles traveling toward the interstitial electrode 246 will be repelled by the interstitial electrode 246 towards the second electrodes 242. Alternatively, the interstitial electrodes can have a floating potential or be grounded.
  • It is to be understood that interstitial electrodes [0165] 246 a, 246 b may also be closer to one second collector electrode than to the other. Also, the interstitial electrodes 246 a, 246 b are preferably located substantially near or at the protective end 241 or ends of the trailing sides 244, as depicted in FIG. 14E. Still further the interstitial electrode can be substantially located along a line between the two trailing portions or ends of the second electrodes. These rear positions are preferred as the interstitial electrodes can cause the positively charged particle to deflect towards the trailing sides 244 along the entire length of the negatively charged second collector electrode 242, in order for the second collector electrode 242 to collect more particles from the airflow.
  • Still further, the interstitial electrodes [0166] 246 a, 246 b can be located upstream along the trailing side 244 of the second collector electrodes 244. However, the closer the interstitial electrodes 246 a, 246 b get to the nose 246 of the second electrode 242, generally the less effective interstitial electrodes 246 a, 246 b are in urging positively charged particles toward the entire length the second electrodes 242. Preferably, the interstitial electrodes 246 a, 246 b are wire-shaped and smaller or substantially smaller in diameter than the width “W” of the second collector electrodes 242. For example, the interstitial electrodes can have a diameter of, the same as, or on the order, of the diameter of the first electrodes. For example, the interstitial electrodes can have a diameter of one-sixteenth of an inch. Also, the diameter of the interstitial electrodes 246 a, 246 b is substantially less than the distance between second collector electrodes, as indicated by Y2. Further the interstitial electrode can have a length or diameter in the downstream direction that is substantially less than the length of the second electrode in the downstream direction. The reason for this size of the interstitial electrodes 246 a, 246 b is so that the interstitial electrodes 246 a, 246 b have a minimal effect on the airflow rate exiting the device 100 or 200.
  • FIG. 14F illustrates that the electrode assembly [0167] 220 in FIG. 14E can include a pair of third electrodes 224 upstream of each first electrode 232. As previously described, the pair of third electrodes 224 are preferably in-line and symmetrically aligned with each other. For example, the third electrode 224 a 2 is in-line and symmetrically aligned with the third electrode 224 a 1 along extension line A. Extension line A preferably extends from the middle of the nose 246 of the second electrode 242-2 through the center of the first electrode 232-1. As previously disclosed, in a preferred embodiment, only the third electrodes 224 a 1, 224 b 1 are electrically connected to the high voltage generator 170. In FIG. 14F, a plurality of interstitial electrode 296 a and 246 b are located between the second electrodes 242. Preferably these interstitial electrodes are in-line and have a potential gradient with an increasing voltage potential on each successive interstitial electrode in the downstream direction in order to urge particles toward the second electrodes. In this situation the voltage on the interstitial electrodes would have the same sign as the voltage on the first electrode 232. Electrode Assembly With an Enhanced First Emitter Electrode Being Slack: FIGS. 15A-15C
  • The previously described embodiments of the electrode assembly [0168] 220 include a first array of electrodes 230 having at least one wire or rod shaped electrode 232. It is within the scope of the present invention for the first array of electrodes 230 to contain electrodes consisting of other shapes and configurations.
  • FIG. 15A illustrates that the first array of electrodes [0169] 230 may include curved or slack wire-shaped electrodes 252. The curved wire-shaped electrode 252 is an ion emitting surface and generates an electric field similar to the previously described wire-shaped electrodes 232. In this embodiment, the electrode assembly 220 includes a first array of electrodes 230 having three curved electrodes 252, and a second array of electrodes 240 having four “U”-shaped electrodes 242. Each second electrode 242 is “downstream,” and each third focus electrode 224 is “upstream,” to the curved wire-shaped electrodes 252 similar to the embodiment shown in FIG. 9A. The electrical properties and characteristics of the second electrodes 242 and third focus electrode 224 are similar to the previously described embodiment shown in FIG. 9A. It is to be understood that an alternative embodiment of FIG. 15A can exclude the focus electrodes and be within the spirit and scope of the invention.
  • As shown in FIG. 15A, positive ions are generated and emitted by the first electrode [0170] 252. In general, the quantity of negative ions generated and emitted by the first electrode is proportional to the surface area of the first electrode. The height Z1 of the first electrode 252 is equal to the height Z1 of the previously disclosed wire-shaped electrode 232. However, the total length of the electrode 252 is greater than the total length of the electrode 232. By way of example only, and in a preferred embodiment, if the electrode 252 was straightened out, the curved or slack wire electrode 252 is 15-30% longer than the rod or wire-shaped electrode 232. The curved electrode 252 is allowed to be slack to achieve the shorter height Z1. When a wire is held slack, the wire may form a curved shape similar to the first electrode 252 shown in FIG. 15A. The greater total length of the curved electrode 252 translates to a larger surface area than the wire-shaped electrode 232. Thus, the electrode 252 will generate and emit more ions than the electrode 232. Ions emitted by the first electrode array attach to the particulate matter within the airflow. The charged particulate matter is attracted to, and collected by, the oppositely charged second collector electrodes 242. Since the electrodes 252 generate and emit more ions than the previously described rod or wire shaped electrodes 232, more particulate matter will be removed from the airflow.
  • FIG. 15B illustrates that the first array of electrodes [0171] 230 may include flat coil wire-shaped electrodes 254. Each flat coil wire-shaped electrode 254 also has a larger surface area than the previously disclosed wire-shaped electrode 232. By way of example only, and in a preferred embodiment, if the electrode 254 was straightened out, the electrode 254 will have a total length that is preferably 10% longer than the rod shaped electrode 232. Since the height of the electrode 254 remains at Z1, the electrode 254 has a “kinked” configuration as shown in FIG. 15B. This greater length translates to a larger surface area of the electrode 254 than the surface area of the electrode 232. Accordingly, the electrode 254 will generate and emit a greater number of ions than electrode 232. It is to be understood that an alternative embodiment of FIG. 15B can exclude the focus electrodes and be within the spirit and scope of the invention.
  • FIG. 15C illustrates that the first array of electrodes [0172] 230 may also include coiled wire-shaped electrodes 256. Again, the height Z1 of the electrodes 256 are similar to the height Z1 of the previously described rod shaped electrodes 232. However, the total length of each electrode 256 is greater than the total length of the rod-shaped electrodes 232. By way of example only, and in a preferred embodiment, if the coiled electrode 256 was straightened out, each electrode 256 will have a total length two to three times longer than the wire-shaped electrodes 232. Thus, the electrodes 256 have a larger surface area than the electrodes 232, and generate and emit more ions than the first electrodes 232. The diameter of the wire that is coiled to produce the electrode 256 is similar to the diameter of the electrode 232. The diameter of the electrode 256 itself is preferably 1-3 mm, but can be smaller in accordance with the diameter of first emitter electrode 232. The diameter of the electrode 256 shall remain small enough so that the electrode 256 has a high emissivity and is an ion emitting surface. It is to be understood that an alternative embodiment of FIG. 15C can exclude the focus electrodes and be within the spirit and scope of the invention.
  • The electrodes [0173] 252, 254 and 256 shown in FIGS. 15A-15C maybe incorporated into any of the electrode assembly 220 configurations previously disclosed in this application.
  • The foregoing description of the preferred embodiments of the present invention has been provided for the purposes of illustration and description. It is not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations will be apparent to the practitioner skilled in the art. Modifications and variations may be made to the disclosed embodiments without departing from the subject and spirit of the invention as defined by the following claims. Embodiments were chosen and described in order to best describe the principles of the invention and its practical application, thereby enabling others skilled in the art to understand the invention, the various embodiments and with various modifications that are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the following claims and their equivalents. [0174]

Claims (14)

    What is claimed is:
  1. 1. An air transporter-conditioner comprising:
    a housing having a top and a removable inlet and an outlet;
    an ion generator, when energized, that can create an airflow between the inlet and the outlet, and including a first electrode and a second electrode, and a voltage generator coupled between the first electrode and the second electrode;
    said second electrode being removably mounted in said housing so that the second electrode can be removed for cleaning, and wherein said second electrode is removable through said top of said housing;
    a germicidal lamp that can expose the airflow to germicidal radiation, disposed in said house, said germicidal lamp removably mounted in said housing such that after said inlet is removed, said germicidal lamp can be removed.
  2. 2. The air transporter-conditioner of claim 1 wherein:
    said housing has a side extending downwardly from said top and said inlet is located through said side.
  3. 3. The air transporter-conditioner of claim 1 wherein said housing is elongated and said inlet and said outlet are covered with elongated fins which extend along a direction of the elongated housing.
  4. 4. The air transporter-conditioner of claim 1 wherein said housing is vertically upstanding and said inlet and said outlet are covered with vertical elongated fins.
  5. 5. An air transporter-conditioner comprising:
    a housing having an inlet and an outlet;
    an ion generator which, when energized, that can create an airflow between the inlet and the outlet, and including a first electrode and a second electrode, and a voltage generator coupled between the first electrode and the second electrode;
    said second electrode being removably mounted in said housing so that the second electrode can be removed for cleaning; and
    a germicidal lamp exposing the airflow to germicidal radiation, disposed in said house, said germicidal lamp removably mounted in said housing such that said germicidal lamp can be changed.
  6. 6. The air transporter-conditioner of claim 5 wherein said housing has a top and said second electrode and said germicidal lamp are removable through said top.
  7. 7. The air transporter-conditioner of claim 5 wherein said housing has a top and a side and the second electrode is removable through said top and said germicidal lamp is removable through said sides.
  8. 8. The air transporter-conditioner of claim 5 wherein:
    said housing has a top and said second electrode has a first handle located on said top, which first handle can be used to lift said second electrode out of said housing through said top; and
    said germicidal lamp has a second handle, which second handle located on said top, which second handle can be used to lift said germicidal lamp out of said housing through said top.
  9. 9. An air transporter-conditioner comprising:
    an upstanding, elongated housing having a top and a side wall extending downwardly from said top, said housing further including an inlet defined through said side wall and an outlet;
    said inlet removably mounted to said side wall;
    an ion generator which, when energized, that can create an airflow between the inlet and the outlet, and including a first electrode and a second electrode, and a voltage generator coupled between the first electrode and the second electrode;
    said second electrode being removably mounted in said housing so that the second electrode can be removed for cleaning;
    said top of said housing including a port through which said second electrode can be removed;
    a germicidal lamp exposing the airflow to germicidal radiation, disposed in said house, said germicidal lamp removably mounted in said housing such that said germicidal lamp can be changed; and
    said germicidal lamp removably mounted in said housing adjacent to said removable inlet so that after said removable inlet is removed, said germicidal lamp can be removed.
  10. 10. The air transporter-conditioner of claim 9 wherein said second electrode is elongated along a direction of elongation of said housing.
  11. 11. A method for maintaining an air transporter-conditioner having a housing with a top and a side, and an ion generator in said housing which ion generator includes a first ion emitter electrode and a second collector electrode, and a germicidal device in said housing, comprising the steps of in any order and with the steps occurring within a relatively short period of time or over a substantial period of operation of the air transporter-conditioner:
    removing the second collector electrode through the top of said housing for cleaning;
    removing the germicidal device through said side for replacing a germicidal lamp;
    replacing the second collector electrode through the top of said housing into said housing; and
    placing a new germicidal lamp into said housing.
  12. 12. The method of claim 11 including preparatory to removing the germicidal device, the step of removing a side wall of the housing.
  13. 13. The method of claim 11 including preparatory to removing the germicidal device, the step of removing a side outlet vent located in said side of said housing.
  14. 14. The method of claim 11 including preparatory to removing the germicidal device, the step of removing a side vertically louvered vent located in said side of said housing.
US10074379 1998-11-05 2002-02-12 Electro-kinetic air transporter and conditioner device with enhanced maintenance features and enhanced anti-microorganism capability Abandoned US20030206837A1 (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US09186471 US6176977B1 (en) 1998-11-05 1998-11-05 Electro-kinetic air transporter-conditioner
US09564960 US6350417B1 (en) 1998-11-05 2000-05-04 Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices
US09730499 US6713026B2 (en) 1998-11-05 2000-12-05 Electro-kinetic air transporter-conditioner
US09774198 US6544485B1 (en) 2001-01-29 2001-01-29 Electro-kinetic device with enhanced anti-microorganism capability
US30647901 true 2001-07-18 2001-07-18
US09924624 US20010048906A1 (en) 1998-11-05 2001-08-08 Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices
US34137701 true 2001-12-13 2001-12-13
US10074379 US20030206837A1 (en) 1998-11-05 2002-02-12 Electro-kinetic air transporter and conditioner device with enhanced maintenance features and enhanced anti-microorganism capability

Applications Claiming Priority (2)

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US10074379 US20030206837A1 (en) 1998-11-05 2002-02-12 Electro-kinetic air transporter and conditioner device with enhanced maintenance features and enhanced anti-microorganism capability
US10435289 US7959869B2 (en) 1998-11-05 2003-05-09 Air treatment apparatus with a circuit operable to sense arcing

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US09186471 Continuation-In-Part US6176977B1 (en) 1998-11-05 1998-11-05 Electro-kinetic air transporter-conditioner
US09186471 Continuation US6176977B1 (en) 1998-11-05 1998-11-05 Electro-kinetic air transporter-conditioner
US09564960 Continuation US6350417B1 (en) 1998-11-05 2000-05-04 Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices
US09730499 Continuation-In-Part US6713026B2 (en) 1998-11-05 2000-12-05 Electro-kinetic air transporter-conditioner
US09774198 Continuation-In-Part US6544485B1 (en) 2001-01-29 2001-01-29 Electro-kinetic device with enhanced anti-microorganism capability
US09924624 Continuation-In-Part US20010048906A1 (en) 1998-11-05 2001-08-08 Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices

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US10435289 Expired - Fee Related US7959869B2 (en) 1998-11-05 2003-05-09 Air treatment apparatus with a circuit operable to sense arcing

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Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040217720A1 (en) * 2002-07-03 2004-11-04 Krichtafovitch Igor A. Electrostatic fluid accelerator for and a method of controlling fluid flow
US6855190B1 (en) 2004-04-12 2005-02-15 Sylmark Holdings Limited Cleaning mechanism for ion emitting air conditioning device
US6919698B2 (en) 2003-01-28 2005-07-19 Kronos Advanced Technologies, Inc. Electrostatic fluid accelerator for and method of controlling a fluid flow
US6946103B1 (en) 2004-06-01 2005-09-20 Sylmark Holdings Limited Air purifier with electrode assembly insertion lock
US20060130657A1 (en) * 2004-12-22 2006-06-22 Oreck Holdings, Llc Tower ionizer air cleaner
US7662348B2 (en) 1998-11-05 2010-02-16 Sharper Image Acquistion LLC Air conditioner devices
US7695690B2 (en) 1998-11-05 2010-04-13 Tessera, Inc. Air treatment apparatus having multiple downstream electrodes
US7724492B2 (en) 2003-09-05 2010-05-25 Tessera, Inc. Emitter electrode having a strip shape
US7767165B2 (en) 1998-11-05 2010-08-03 Sharper Image Acquisition Llc Personal electro-kinetic air transporter-conditioner
US7767169B2 (en) 2003-12-11 2010-08-03 Sharper Image Acquisition Llc Electro-kinetic air transporter-conditioner system and method to oxidize volatile organic compounds
US7833322B2 (en) 2006-02-28 2010-11-16 Sharper Image Acquisition Llc Air treatment apparatus having a voltage control device responsive to current sensing
US7897118B2 (en) 2004-07-23 2011-03-01 Sharper Image Acquisition Llc Air conditioner device with removable driver electrodes
US7900372B2 (en) * 2008-04-18 2011-03-08 Mabe Canada Inc. Clothes dryer with louvre cover
US7906080B1 (en) 2003-09-05 2011-03-15 Sharper Image Acquisition Llc Air treatment apparatus having a liquid holder and a bipolar ionization device
US7959869B2 (en) 1998-11-05 2011-06-14 Sharper Image Acquisition Llc Air treatment apparatus with a circuit operable to sense arcing
US8043573B2 (en) 2004-02-18 2011-10-25 Tessera, Inc. Electro-kinetic air transporter with mechanism for emitter electrode travel past cleaning member
US8049426B2 (en) 2005-04-04 2011-11-01 Tessera, Inc. Electrostatic fluid accelerator for controlling a fluid flow
CN103381393A (en) * 2013-02-04 2013-11-06 林爱华 Vehicle-mounted air purifier
US8861167B2 (en) 2011-05-12 2014-10-14 Global Plasma Solutions, Llc Bipolar ionization device

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7241330B2 (en) * 2004-10-25 2007-07-10 Oreck Holdings, Llc Air cleaner electrostatic precipitator cell
US7244290B2 (en) * 2004-11-22 2007-07-17 Headwaters, Inc. Electrostatic room air cleaner
US7481870B2 (en) * 2006-04-18 2009-01-27 Oreck Holdings, Llc Electrode wire for an electrostatic precipitator
US7306655B2 (en) * 2006-04-18 2007-12-11 Oreck Holdings, Llc Corona ground element
US7306648B2 (en) * 2006-04-18 2007-12-11 Oreck Holdings, Llc Retainer for use with a corona ground element of an electrostatic precipitator
US7291206B1 (en) * 2006-04-18 2007-11-06 Oreck Holdings, Llc Pre-ionizer for use with an electrostatic precipitator
US7276106B1 (en) 2006-04-18 2007-10-02 Oreck Holdings Llc Electrode wire retaining member for an electrostatic precipitator
US20080006158A1 (en) * 2006-07-05 2008-01-10 Oreck Holdings, Llc Air cleaner and air cleaner diagnostic process
US20080063559A1 (en) * 2006-09-13 2008-03-13 Joseph Alexander Fan forced electric unit that incorporates a low power cold plasma generator and method of making same
US7413594B2 (en) * 2006-09-18 2008-08-19 Oreck Holdings, Llc Electrical power disable in an air cleaner
US8807204B2 (en) * 2010-08-31 2014-08-19 International Business Machines Corporation Electrohydrodynamic airflow across a heat sink using a non-planar ion emitter array
WO2015030840A1 (en) * 2013-08-27 2015-03-05 Lichtblau G J Ultraviolet radiation system
DE102015109629A1 (en) * 2015-06-16 2016-12-22 Dr. Schneider Kunststoffwerke Gmbh air vents

Citations (94)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US653421A (en) * 1899-08-22 1900-07-10 William Lorey Filter.
US981695A (en) * 1910-04-12 1911-01-17 Firm Of Th Goldschmidt Means for forming parallel faces on the ends of rails, &c.
US995958A (en) * 1911-02-10 1911-06-20 Louis Goldberg Ozonator.
US1791338A (en) * 1927-04-12 1931-02-03 Research Corp Electrical precipitator
US1869335A (en) * 1926-12-13 1932-07-26 Day Leonard Electric precipitator
US2327588A (en) * 1940-06-01 1943-08-24 Games Slayter Apparatus for conversion of energy
US2509548A (en) * 1948-05-27 1950-05-30 Research Corp Energizing electrical precipitator
US3018394A (en) * 1957-07-03 1962-01-23 Whitehall Rand Inc Electrokinetic transducer
US3026964A (en) * 1959-05-06 1962-03-27 Gaylord W Penney Industrial precipitator with temperature-controlled electrodes
US3374941A (en) * 1964-06-30 1968-03-26 American Standard Inc Air blower
US3518462A (en) * 1967-08-21 1970-06-30 Guidance Technology Inc Fluid flow control system
US3581470A (en) * 1969-12-30 1971-06-01 Emerson Electric Co Electronic air cleaning cell
US3638058A (en) * 1970-06-08 1972-01-25 Robert S Fritzius Ion wind generator
US3744216A (en) * 1970-08-07 1973-07-10 Environmental Technology Air purifier
US4017736A (en) * 1974-09-27 1977-04-12 Ross Henry M Air purification system utilizing ultraviolet radiation
US4092134A (en) * 1976-06-03 1978-05-30 Nipponkai Heavy Industries Co., Ltd. Electric dust precipitator and scraper
US4102654A (en) * 1976-07-27 1978-07-25 Raymond Bommer Negative ionizer
US4138233A (en) * 1976-06-21 1979-02-06 Senichi Masuda Pulse-charging type electric dust collecting apparatus
US4209306A (en) * 1978-11-13 1980-06-24 Research-Cottrell Pulsed electrostatic precipitator
US4244710A (en) * 1977-05-12 1981-01-13 Burger Manfred R Air purification electrostatic charcoal filter and method
US4244712A (en) * 1979-03-05 1981-01-13 Tongret Stewart R Cleansing system using treated recirculating air
US4253852A (en) * 1979-11-08 1981-03-03 Tau Systems Air purifier and ionizer
US4259452A (en) * 1978-05-15 1981-03-31 Bridgestone Tire Company Limited Method of producing flexible reticulated polyether polyurethane foams
US4266948A (en) * 1980-01-04 1981-05-12 Envirotech Corporation Fiber-rejecting corona discharge electrode and a filtering system employing the discharge electrode
US4318718A (en) * 1979-07-19 1982-03-09 Ichikawa Woolen Textile Co., Ltd. Discharge wire cleaning device for an electric dust collector
US4386395A (en) * 1980-12-19 1983-05-31 Webster Electric Company, Inc. Power supply for electrostatic apparatus
US4445911A (en) * 1980-12-17 1984-05-01 F. L. Smidth & Co. Method of controlling operation of an electrostatic precipitator
US4496375A (en) * 1981-07-13 1985-01-29 Vantine Allan D Le An electrostatic air cleaning device having ionization apparatus which causes the air to flow therethrough
US4502002A (en) * 1982-09-02 1985-02-26 Mitsubishi Jukogyo Kabushiki Kaisha Electrostatically operated dust collector
US4509958A (en) * 1981-10-12 1985-04-09 Senichi Masuda High-efficiency electrostatic filter device
US4516991A (en) * 1982-12-30 1985-05-14 Nihon Electric Co. Ltd. Air cleaning apparatus
US4587475A (en) * 1983-07-25 1986-05-06 Foster Wheeler Energy Corporation Modulated power supply for an electrostatic precipitator
US4600411A (en) * 1984-04-06 1986-07-15 Lucidyne, Inc. Pulsed power supply for an electrostatic precipitator
US4601733A (en) * 1983-09-29 1986-07-22 Dominique Bacot High voltage generator for an electrostatic dust precipitator
US4643745A (en) * 1983-12-20 1987-02-17 Nippon Soken, Inc. Air cleaner using ionic wind
US4674003A (en) * 1984-04-03 1987-06-16 J. Wagner Ag Electronic high-voltage generator for electrostatic sprayer devices
US4726812A (en) * 1986-03-26 1988-02-23 Bbc Brown, Boveri Ag Method for electrostatically charging up solid or liquid particles suspended in a gas stream by means of ions
US4726814A (en) * 1985-07-01 1988-02-23 Jacob Weitman Method and apparatus for simultaneously recovering heat and removing gaseous and sticky pollutants from a heated, polluted gas flow
US4808200A (en) * 1986-11-24 1989-02-28 Siemens Aktiengesellschaft Electrostatic precipitator power supply
US4811159A (en) * 1988-03-01 1989-03-07 Associated Mills Inc. Ionizer
US4941068A (en) * 1988-03-10 1990-07-10 Hofmann & Voelkel Gmbh Portable ion generator
US4940470A (en) * 1988-03-23 1990-07-10 American Filtrona Corporation Single field ionizing electrically stimulated filter
USD315598S (en) * 1989-02-15 1991-03-19 Hitachi, Ltd. Electric fan
US5006761A (en) * 1985-12-20 1991-04-09 Astra-Vent Ab Air transporting arrangement
US5012093A (en) * 1988-08-29 1991-04-30 Minolta Camera Co., Ltd. Cleaning device for wire electrode of corona discharger
US5012159A (en) * 1987-07-03 1991-04-30 Astra Vent Ab Arrangement for transporting air
US5010869A (en) * 1989-08-11 1991-04-30 Zenion Industries, Inc. Air ionization system for internal combustion engines
US5024685A (en) * 1986-12-19 1991-06-18 Astra-Vent Ab Electrostatic air treatment and movement system
USRE33927E (en) * 1985-11-08 1992-05-19 Kankyo Company Limited Air cleaner
US5180404A (en) * 1988-12-08 1993-01-19 Astra-Vent Ab Corona discharge arrangements for the removal of harmful substances generated by the corona discharge
US5183480A (en) * 1991-10-28 1993-02-02 Mobil Oil Corporation Apparatus and method for collecting particulates by electrostatic precipitation
US5196171A (en) * 1991-03-11 1993-03-23 In-Vironmental Integrity, Inc. Electrostatic vapor/aerosol/air ion generator
US5215558A (en) * 1990-06-12 1993-06-01 Samsung Electronics Co., Ltd. Electrical dust collector
US5217504A (en) * 1989-03-28 1993-06-08 Abb Flakt Aktiebolag Method for controlling the current pulse supply to an electrostatic precipitator
US5290343A (en) * 1991-07-19 1994-03-01 Kabushiki Kaisha Toshiba Electrostatic precipitator machine for charging dust particles contained in air and capturing dust particles with coulomb force
US5296019A (en) * 1990-06-19 1994-03-22 Neg-Ions (North America) Inc. Dust precipitation from air by negative ionization
US5302190A (en) * 1992-06-08 1994-04-12 Trion, Inc. Electrostatic air cleaner with negative polarity power and method of using same
US5316741A (en) * 1991-05-30 1994-05-31 Zontec Inc. Ozone generator
US5315838A (en) * 1993-08-16 1994-05-31 Whirlpool Corporation Air conditioner filter monitor
US5378978A (en) * 1993-04-02 1995-01-03 Belco Technologies Corp. System for controlling an electrostatic precipitator using digital signal processing
US5435817A (en) * 1992-12-23 1995-07-25 Honeywell Inc. Portable room air purifier
US5484472A (en) * 1995-02-06 1996-01-16 Weinberg; Stanley Miniature air purifier
US5532798A (en) * 1993-05-26 1996-07-02 Minolta Camera Kabushiki Kaisha Charging device having a plate electrode and a cleaning device for cleaning edges of the plate electrode
US5535089A (en) * 1994-10-17 1996-07-09 Jing Mei Industrial Holdings, Ltd. Ionizer
US5601636A (en) * 1995-05-30 1997-02-11 Appliance Development Corp. Wall mounted air cleaner assembly
US5641342A (en) * 1995-12-26 1997-06-24 Carrier Corporation Interlock between cells of an electronic air cleaner
US5766318A (en) * 1993-11-24 1998-06-16 Tl-Vent Aktiebolag Precipitator for an electrostatic filter
US5779769A (en) * 1995-10-24 1998-07-14 Jiang; Pengming Integrated multi-function lamp for providing light and purification of indoor air
US5879435A (en) * 1997-01-06 1999-03-09 Carrier Corporation Electronic air cleaner with germicidal lamp
US5893977A (en) * 1997-05-12 1999-04-13 Hercules Products Water ionizer having vibration sensor to sense flow in electrode housing
US5911957A (en) * 1997-10-23 1999-06-15 Khatchatrian; Robert G. Ozone generator
US6042637A (en) * 1996-08-14 2000-03-28 Weinberg; Stanley Corona discharge device for destruction of airborne microbes and chemical toxins
US6063168A (en) * 1997-08-11 2000-05-16 Southern Company Services Electrostatic precipitator
US6086657A (en) * 1999-02-16 2000-07-11 Freije; Joseph P. Exhaust emissions filtering system
US6176977B1 (en) * 1998-11-05 2001-01-23 Sharper Image Corporation Electro-kinetic air transporter-conditioner
US6182461B1 (en) * 1999-07-16 2001-02-06 Carrier Corporation Photocatalytic oxidation enhanced evaporator coil surface for fly-by control
US6182671B1 (en) * 1998-09-29 2001-02-06 Sharper Image Corporation Ion emitting grooming brush
US6193852B1 (en) * 1997-05-28 2001-02-27 The Boc Group, Inc. Ozone generator and method of producing ozone
US6203600B1 (en) * 1996-06-04 2001-03-20 Eurus Airtech Ab Device for air cleaning
US6212883B1 (en) * 2000-03-03 2001-04-10 Moon-Ki Cho Method and apparatus for treating exhaust gas from vehicles
US6228149B1 (en) * 1999-01-20 2001-05-08 Patterson Technique, Inc. Method and apparatus for moving, filtering and ionizing air
US6252012B1 (en) * 1996-06-27 2001-06-26 International Business Machines Corporation Method for producing a diffusion barrier and polymeric article having a diffusion barrier
US6348103B1 (en) * 1998-05-19 2002-02-19 Firma Ing. Walter Hengst Gmbh & Co. Kg Method for cleaning electrofilters and electrofilters with a cleaning device
US6350417B1 (en) * 1998-11-05 2002-02-26 Sharper Image Corporation Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices
US6362604B1 (en) * 1998-09-28 2002-03-26 Alpha-Omega Power Technologies, L.L.C. Electrostatic precipitator slow pulse generating circuit
US6373723B1 (en) * 1998-06-18 2002-04-16 Kraftelektronik Ab Method and device for generating voltage peaks in an electrostatic precipitator
US6372097B1 (en) * 1999-11-12 2002-04-16 Chen Laboratories Method and apparatus for efficient surface generation of pure O3
US6379427B1 (en) * 1999-12-06 2002-04-30 Harold E. Siess Method for protecting exposed surfaces
US6391259B1 (en) * 1996-06-26 2002-05-21 Ozontech Ltd. Ozone applications for disinfection, purification and deodorization
US6398852B1 (en) * 1997-03-05 2002-06-04 Eurus Airtech Ab Device for air cleaning
US6504308B1 (en) * 1998-10-16 2003-01-07 Kronos Air Technologies, Inc. Electrostatic fluid accelerator
US20030005824A1 (en) * 2000-03-03 2003-01-09 Ryou Katou Dust collecting apparatus and air-conditioning apparatus
US6508982B1 (en) * 1998-04-27 2003-01-21 Kabushiki Kaisha Seisui Air-cleaning apparatus and air-cleaning method
US6749667B2 (en) * 2002-06-20 2004-06-15 Sharper Image Corporation Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices

Family Cites Families (358)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US895729A (en) 1907-07-09 1908-08-11 Int Precipitation Co Art of separating suspended particles from gaseous bodies.
US1882949A (en) 1930-11-15 1932-10-18 Int Precipitation Co Electrical precipitation apparatus
US2129783A (en) 1935-10-15 1938-09-13 Westinghouse Electric & Mfg Co Electrical precipitator for atmospheric dust
US2247409A (en) 1940-10-09 1941-07-01 John M Roper Ultraviolet instrument lamp
US2359057A (en) * 1941-10-13 1944-09-26 Skinner George Donald Heating and ventilating system
GB643363A (en) 1946-10-30 1950-09-20 Westinghouse Electric Int Co Improvements in or relating to electrostatic dust precipitation
US2949550A (en) * 1957-07-03 1960-08-16 Whitehall Rand Inc Electrokinetic apparatus
US2978066A (en) 1959-05-07 1961-04-04 Honeywell Regulator Co Gas cleaning apparatus
BE693403A (en) 1967-01-31 1967-07-03
US3412530A (en) 1967-02-06 1968-11-26 George H. Cardiff Electrostatic air filter structure
US3740926A (en) * 1970-12-15 1973-06-26 Texas Electronic Precipitator Portable electronic precipitator
US3945813A (en) 1971-04-05 1976-03-23 Koichi Iinoya Dust collector
CA976599A (en) 1971-04-08 1975-10-21 Senichi Masuda Electrified particles generating apparatus
US4056372A (en) 1971-12-29 1977-11-01 Nafco Giken, Ltd. Electrostatic precipitator
DE2206057A1 (en) 1972-02-09 1973-08-16 Dortmunder Brueckenbau C Jucho Electrofilter for flue gas - high tension electrodes extend vertically downward into precipitation electrodes and are removable
DE2340716A1 (en) * 1972-11-02 1975-02-20 Heinrich Fuchs Electronic means for dust separation
JPS4989962A (en) 1972-12-30 1974-08-28
US3958961A (en) 1973-02-02 1976-05-25 United States Filter Corporation Wet electrostatic precipitators
US3892927A (en) 1973-09-04 1975-07-01 Theodore Lindenberg Full range electrostatic loudspeaker for audio frequencies
US4052177A (en) * 1975-03-03 1977-10-04 Nea-Lindberg A/S Electrostatic precipitator arrangements
US4282014A (en) * 1975-01-31 1981-08-04 Siemens Aktiengesellschaft Detector for detecting voltage breakdowns on the high-voltage side of an electric precipitator
JPS524790B2 (en) * 1974-05-08 1977-02-07
US4218225A (en) 1974-05-20 1980-08-19 Apparatebau Rothemuhle Brandt & Kritzler Electrostatic precipitators
US4362632A (en) 1974-08-02 1982-12-07 Lfe Corporation Gas discharge apparatus
CA1070622A (en) 1974-08-19 1980-01-29 James J. Schwab Process and apparatus for electrostatic cleaning of gases
US4071334A (en) 1974-08-29 1978-01-31 Maxwell Laboratories, Inc. Method and apparatus for precipitating particles from a gaseous effluent
US3984215A (en) * 1975-01-08 1976-10-05 Hudson Pulp & Paper Corporation Electrostatic precipitator and method
DE2514956B1 (en) 1975-04-05 1976-01-15 Appbau Rothemuehle Brandt Flue gas electrostatic precipitator
US4007024A (en) 1975-06-09 1977-02-08 Air Control Industries, Inc. Portable electrostatic air cleaner
JPS5245884U (en) 1975-07-09 1977-03-31
US4126434A (en) 1975-09-13 1978-11-21 Hara Keiichi Electrostatic dust precipitators
US4147522A (en) 1976-04-23 1979-04-03 American Precision Industries Inc. Electrostatic dust collector
DE2641114C3 (en) 1976-09-13 1981-05-14 Metallgesellschaft Ag, 6000 Frankfurt, De
JPS5641099B2 (en) 1977-02-10 1981-09-25
JPS53115978A (en) 1977-03-21 1978-10-09 Shiyunji Matsumoto Electrostatic filter
US4185971A (en) 1977-07-14 1980-01-29 Koyo Iron Works & Construction Co., Ltd. Electrostatic precipitator
US4104042A (en) 1977-04-29 1978-08-01 American Air Filter Company, Inc. Multi-storied electrostatic precipitator
US4119415A (en) 1977-06-22 1978-10-10 Nissan Motor Company, Ltd. Electrostatic dust precipitator
US4293319A (en) 1977-09-28 1981-10-06 The United States Of America As Represented By The Secretary Of Agriculture Electrostatic precipitator apparatus using liquid collection electrodes
US4349359A (en) 1978-03-30 1982-09-14 Maxwell Laboratories, Inc. Electrostatic precipitator apparatus having an improved ion generating means
US4289504A (en) 1978-06-12 1981-09-15 Ball Corporation Modular gas cleaner and method
US4227894A (en) * 1978-10-10 1980-10-14 Proynoff John D Ion generator or electrostatic environmental conditioner
US4189308A (en) 1978-10-31 1980-02-19 Research-Cottrell, Inc. High voltage wetted parallel plate collecting electrode arrangement for an electrostatic precipitator
US4231766A (en) 1978-12-11 1980-11-04 United Air Specialists, Inc. Two stage electrostatic precipitator with electric field induced airflow
US4232355A (en) 1979-01-08 1980-11-04 Santek, Inc. Ionization voltage source
US4259707A (en) 1979-01-12 1981-03-31 Penney Gaylord W System for charging particles entrained in a gas stream
US4369776A (en) 1979-04-11 1983-01-25 Roberts Wallace A Dermatological ionizing vaporizer
US4264343A (en) 1979-05-18 1981-04-28 Monsanto Company Electrostatic particle collecting apparatus
US4225323A (en) 1979-05-31 1980-09-30 General Electric Company Ionization effected removal of alkali composition from a hot gas
US4308036A (en) 1979-08-23 1981-12-29 Efb Inc. Filter apparatus and method for collecting fly ash and fine dust
US4284420A (en) * 1979-08-27 1981-08-18 Borysiak Ralph A Electrostatic air cleaner with scraper cleaning of collector plates
US4251234A (en) 1979-09-21 1981-02-17 Union Carbide Corporation High intensity ionization-electrostatic precipitation system for particle removal
US4351648A (en) 1979-09-24 1982-09-28 United Air Specialists, Inc. Electrostatic precipitator having dual polarity ionizing cell
US4338560A (en) 1979-10-12 1982-07-06 The United States Of America As Represented By The Secretary Of The Navy Albedd radiation power converter
US4315188A (en) 1980-02-19 1982-02-09 Ball Corporation Wire electrode assemblage having arc suppression means and extended fatigue life
CA1154694A (en) 1980-03-06 1983-10-04 Tsuneo Uchiya Electrostatic particle precipitator
US4414603A (en) 1980-03-27 1983-11-08 Senichi Masuda Particle charging apparatus
US4544382A (en) 1980-05-19 1985-10-01 Office National D'etudes Et De Recherches Aerospatiales (Onera) Apparatus for separating particles in suspension in a gas
DE3019991C2 (en) 1980-05-24 1991-02-07 Robert Bosch Gmbh, 7000 Stuttgart, De
US4435190A (en) 1981-03-14 1984-03-06 Office National D'etudes Et De Recherches Aerospatiales Method for separating particles in suspension in a gas
JPS571454A (en) 1980-06-05 1982-01-06 Senichi Masuda Electrostatic type ultrahigh capacity filter
DE3027172A1 (en) 1980-07-17 1982-02-18 Siemens Ag A method for operating an electrostatic precipitator
US4363072A (en) 1980-07-22 1982-12-07 Zeco, Incorporated Ion emitter-indicator
US4375364A (en) 1980-08-21 1983-03-01 Research-Cottrell, Inc. Rigid discharge electrode for electrical precipitators
DE3033796A1 (en) 1980-09-09 1982-04-22 Bayer Ag An electrochemical sensor for detecting reducing gases, particularly carbon monoxide, hydrazine and hydrogen in air
US4691829A (en) 1980-11-03 1987-09-08 Coulter Corporation Method of and apparatus for detecting change in the breakoff point in a droplet generation system
US4354861A (en) 1981-03-26 1982-10-19 Kalt Charles G Particle collector and method of manufacturing same
US4477268A (en) 1981-03-26 1984-10-16 Kalt Charles G Multi-layered electrostatic particle collector electrodes
US4597780A (en) 1981-06-04 1986-07-01 Santek, Inc. Electro-inertial precipitator unit
JPS5811050A (en) 1981-07-11 1983-01-21 Niito Shiyuujin Kiko Kk Electrostatic precipitator
JPH0114817B2 (en) 1981-07-31 1989-03-14 Ibbott Jack Kenneth
DK146770C (en) 1981-11-13 1984-06-04 Brueel & Kjaer As capacitive transducer
US4406671A (en) 1981-11-16 1983-09-27 Kelsey-Hayes Company Assembly and method for electrically degassing particulate material
US4391614A (en) 1981-11-16 1983-07-05 Kelsey-Hayes Company Method and apparatus for preventing lubricant flow from a vacuum source to a vacuum chamber
DE3151534A1 (en) 1981-12-28 1983-07-07 Basf Ag With amino reductones as antioxidants stabilized organic materials
US4405342A (en) 1982-02-23 1983-09-20 Werner Bergman Electric filter with movable belt electrode
US4692174A (en) 1982-02-26 1987-09-08 Gelfand Peter C Ionizer assembly having a bell-mouth outlet
DE3208895C2 (en) * 1982-03-12 1986-05-15 Rudolf 3501 Schauenburg De Gesslauer
DE3215400A1 (en) 1982-04-24 1983-10-27 Metallgesellschaft Ag Wet electrostatic precipitators for converter waste gases
US4477263A (en) * 1982-06-28 1984-10-16 Shaver John D Apparatus and method for neutralizing static electric charges in sensitive manufacturing areas
US4588423A (en) 1982-06-30 1986-05-13 Donaldson Company, Inc. Electrostatic separator
JPS5916195A (en) 1982-07-19 1984-01-27 Toshiba Corp Semiconductor storage device
US4534776A (en) 1982-08-16 1985-08-13 At&T Bell Laboratories Air cleaner
US4514780A (en) 1983-01-07 1985-04-30 Wm. Neundorfer & Co., Inc. Discharge electrode assembly for electrostatic precipitators
US4481017A (en) 1983-01-14 1984-11-06 Ets, Inc. Electrical precipitation apparatus and method
DE3301772C2 (en) 1983-01-20 1990-05-23 Walther & Cie Ag, 5000 Koeln, De
US4760302A (en) 1986-12-11 1988-07-26 Sarcos, Inc. Electric field machine
US4736127A (en) 1983-04-08 1988-04-05 Sarcos, Inc. Electric field machine
DE3320299C2 (en) 1983-06-04 1987-10-08 Draegerwerk Ag, 2400 Luebeck, De
US4536698A (en) * 1983-08-25 1985-08-20 Vsesojuzny Nauchno-Issledovatelsky I Proektny Institut Po Ochikh Tke Tekhnologichesky Gazov, Stochnykh Vod I Ispolzovaniju Vtorichnykh Energoresursov Predpriyaty Chernoi Metallurgii Vnipichermetenergoochist Ka Method and apparatus for supplying voltage to high-ohmic dust electrostatic precipitator
US4521229A (en) 1983-11-01 1985-06-04 Combustion Engineering, Inc. Tubular discharge electrode for electrostatic precipitator
US4689056A (en) 1983-11-23 1987-08-25 Nippon Soken, Inc. Air cleaner using ionic wind
JPS60122062A (en) * 1983-12-05 1985-06-29 Nippon Denso Co Ltd Air purifier
NL8400141A (en) 1984-01-17 1985-08-16 Philips Nv Hair Treatment Agent.
GB8403735D0 (en) 1984-02-13 1984-03-14 Triactor Eng Ltd Ionising air
US4686370A (en) 1984-02-13 1987-08-11 Biomed-Electronic Gmbh & Co. Medizinischer Geratebau Kg Ionizing chamber for gaseous oxygen
JPH0246265B2 (en) 1984-02-18 1990-10-15 Senichi Masuda Seidenshikirokashujinsochi
US4647836A (en) 1984-03-02 1987-03-03 Olsen Randall B Pyroelectric energy converter and method
US4657738A (en) 1984-04-30 1987-04-14 Westinghouse Electric Corp. Stack gas emissions control system
JPS60235702A (en) 1984-05-09 1985-11-22 Senichi Masuda Method of making ozone and ozonizer therefor
DE3520924C2 (en) 1984-06-12 1992-09-03 Toyoda Gosei Co., Ltd., Haruhimura, Aichi, Jp
DE3422989C2 (en) 1984-06-22 1986-10-09 Messer Griesheim Gmbh, 6000 Frankfurt, De
JPH0261302B2 (en) 1984-06-22 1990-12-19 Midori Anzen Co Ltd
JPH0476738B2 (en) 1984-08-14 1992-12-04 Korona Giken Kogyo Kk
US4597781A (en) 1984-11-21 1986-07-01 Donald Spector Compact air purifier unit
GB8430803D0 (en) 1984-12-06 1985-01-16 Bergman I Electrochemical cell
GB8431294D0 (en) 1984-12-12 1985-01-23 Smidth & Co As F L Controlling intermittant voltage supply
US4590042A (en) 1984-12-24 1986-05-20 Tegal Corporation Plasma reactor having slotted manifold
US4623365A (en) 1985-01-09 1986-11-18 The United States Of America As Represented By The Department Of Energy Recirculating electric air filter
US4604174A (en) 1985-04-30 1986-08-05 Dorr-Oliver Incorporated High flow electrofiltration
EP0345828B1 (en) 1985-05-30 1993-09-29 Research Development Corporation of Japan Electrostatic dust collector
US4967119A (en) 1985-06-06 1990-10-30 Astra-Vent Ab Air transporting arrangement
JPH0261240B2 (en) 1985-06-11 1990-12-19 Tokyo Seimitsu Co Ltd
DE3522569A1 (en) * 1985-06-24 1987-01-02 Metallgesellschaft Ag Power supply for an electrostatic filter
EP0208822B1 (en) 1985-07-15 1989-10-04 Kraftelektronik AB An electrostatic dust precipitator
DE3526021C2 (en) 1985-07-20 1990-06-21 Hv Hofmann Und Voelkel Ohg, 8580 Bayreuth, De
FR2585899A1 (en) 1985-07-31 1987-02-06 Centre Nat Rech Scient Transporting device of electrostatic charges, in particular for electrostatic generator has very high voltage.
DE3532978C1 (en) 1985-09-16 1986-12-04 Engelter & Nitsch Electrode arrangement for corona discharges
US4772297A (en) 1985-09-20 1988-09-20 Kyowa Seiko Co., Ltd. Air cleaner
US4853005A (en) 1985-10-09 1989-08-01 American Filtrona Corporation Electrically stimulated filter method and apparatus
US4670026A (en) 1986-02-18 1987-06-02 Desert Technology, Inc. Method and apparatus for electrostatic extraction of droplets from gaseous medium
US4789801A (en) 1986-03-06 1988-12-06 Zenion Industries, Inc. Electrokinetic transducing methods and apparatus and systems comprising or utilizing the same
US4693869A (en) 1986-03-20 1987-09-15 Pfaff Ernest H Electrode arrangement for creating corona
US4976752A (en) 1988-09-26 1990-12-11 Astra Vent Ab Arrangement for generating an electric corona discharge in air
US4662903A (en) 1986-06-02 1987-05-05 Denki Kogyo Company Limited Electrostatic dust collector
US4666474A (en) 1986-08-11 1987-05-19 Amax Inc. Electrostatic precipitators
US4743275A (en) 1986-08-25 1988-05-10 Flanagan G Patrick Electron field generator
US4781736A (en) 1986-11-20 1988-11-01 United Air Specialists, Inc. Electrostatically enhanced HEPA filter
US4725289A (en) 1986-11-28 1988-02-16 Quintilian B Frank High conversion electrostatic precipitator
US4749390A (en) 1987-02-26 1988-06-07 Air Purification Products, International Four-sided air filter
US4786844A (en) 1987-03-30 1988-11-22 Rpc Industries Wire ion plasma gun
US4765802A (en) 1987-07-15 1988-08-23 Wheelabrator Air Pollution Control Inc. Electrostatic precipitator plate spacer and method of installing same
US5003774A (en) 1987-10-09 1991-04-02 Kerr-Mcgee Chemical Corporation Apparatus for soot removal from exhaust gas
JPH0741153Y2 (en) 1987-10-26 1995-09-20 東京応化工業株式会社 Sample treatment electrode
US5061462A (en) 1987-11-12 1991-10-29 Nagatoshi Suzuki Apparatus for producing a streamer corona
US4940894A (en) 1987-12-10 1990-07-10 Enercon Industries Corporation Electrode for a corona discharge apparatus
CA1319624C (en) 1988-03-11 1993-06-29 William E. Pick Pleated charged media air filter
US4954320A (en) 1988-04-22 1990-09-04 The United States Of America As Represented By The Secretary Of The Army Reactive bed plasma air purification
US4822381A (en) 1988-05-09 1989-04-18 Government Of The United States As Represented By Administrator Environmental Protection Agency Electroprecipitator with suppression of rapping reentrainment
US4892713A (en) 1988-06-01 1990-01-09 Newman James J Ozone generator
JP2656080B2 (en) 1988-08-01 1997-09-24 松下電器産業株式会社 An electrostatic precipitator
DE3900552A1 (en) 1989-01-11 1990-07-12 Goslar Bleiwerk plastic electrostatic filter and / or metal, particularly from lead
US4869736A (en) 1989-02-02 1989-09-26 Combustion Engineering, Inc. Collecting electrode panel assembly with coupling means
US5199257A (en) 1989-02-10 1993-04-06 Centro Sviluppo Materiali S.P.A. Device for removal of particulates from exhaust and flue gases
KR910002599Y1 (en) 1989-06-15 1991-04-22 강진구 Air conditioner
US4929139A (en) 1989-07-26 1990-05-29 The Perkin-Elmer Corporation Passive electrostatic vacuum particle collector
EP0415486B1 (en) 1989-08-31 1994-03-16 METALLGESELLSCHAFT Aktiengesellschaft Process and apparatus for electrostatic cleaning of noxious and dusty exhaust gases in multiple field separators
KR910007011Y1 (en) 1989-09-30 1991-09-20 강진구 A dust collector
FR2655570B1 (en) 1989-12-12 1992-06-19 Commissariat Energie Atomique Electrostatic filter equipped with a cleaning system.
US5158580A (en) 1989-12-15 1992-10-27 Electric Power Research Institute Compact hybrid particulate collector (COHPAC)
EP0437849A1 (en) 1990-01-17 1991-07-24 Elex Ag Emission electrode in an electrostatic dust separator
US5571483A (en) 1990-01-26 1996-11-05 Exolon-Esk Company System of converting environmentally pollutant waste gases to a useful product
US5118942A (en) 1990-02-05 1992-06-02 Hamade Thomas A Electrostatic charging apparatus and method
US5012094A (en) 1990-02-05 1991-04-30 Hamade Thomas A Electrostatic charging apparatus and method
US5077468A (en) 1990-02-05 1991-12-31 Hamade Thomas A Electrostatic charging apparatus and method
US5405434A (en) 1990-02-20 1995-04-11 The Scott Fetzer Company Electrostatic particle filtration
US5376168A (en) 1990-02-20 1994-12-27 The L. D. Kichler Co. Electrostatic particle filtration
WO1992014677A1 (en) 1991-02-22 1992-09-03 Clearwater Engineering Pty. Ltd. Method and apparatus for producing ozone by corona discharge
US5154733A (en) 1990-03-06 1992-10-13 Ebara Research Co., Ltd. Photoelectron emitting member and method of electrically charging fine particles with photoelectrons
GB2242931B (en) 1990-03-19 1993-09-22 Hitachi Ltd Blower
US5147429A (en) 1990-04-09 1992-09-15 James Bartholomew Mobile airborne air cleaning station
GB9013621D0 (en) * 1990-06-19 1990-08-08 Neg Ions Limited Dust extraction from air by negative ionization
US5034033A (en) 1990-07-13 1991-07-23 U.S. Natural Resources, Inc. Modular electronic air cleaning device
US5035728A (en) * 1990-07-16 1991-07-30 Tatung Company Of America, Inc. Air cleaner assembly
US5637198A (en) 1990-07-19 1997-06-10 Thermo Power Corporation Volatile organic compound and chlorinated volatile organic compound reduction methods and high efficiency apparatus
US5055963A (en) * 1990-08-15 1991-10-08 Ion Systems, Inc. Self-balancing bipolar air ionizer
US5066313A (en) 1990-09-20 1991-11-19 Southern Environmental, Inc. Wire electrode replacement for electrostatic precipitators
US5059219A (en) 1990-09-26 1991-10-22 The United States Goverment As Represented By The Administrator Of The Environmental Protection Agency Electroprecipitator with alternating charging and short collector sections
JPH054056A (en) 1990-11-30 1993-01-14 Toshiba Ave Corp Electrostatic precipitator
US5234555A (en) 1991-02-05 1993-08-10 Ibbott Jack Kenneth Method and apparatus for ionizing fluids utilizing a capacitive effect
US5141715A (en) 1991-04-09 1992-08-25 University Of Alaska Electrical device for conversion of molecular weights using dynodes
CN2111112U (en) 1991-06-28 1992-07-29 段沫石 Ultraviolet sterilized air purifying unit
US5198003A (en) 1991-07-02 1993-03-30 Carrier Corporation Spiral wound electrostatic air cleaner and method of assembling
DE4123617C2 (en) 1991-07-17 1995-07-06 Metallgesellschaft Ag Device for the transport of substances
JP3211032B2 (en) 1991-08-02 2001-09-25 株式会社エルデック Electrostatic precipitator
JP2564715B2 (en) 1991-08-08 1996-12-18 住友精密工業株式会社 A plate-type ozone generators
FR2680474B1 (en) 1991-08-21 1995-09-08 Ecoprocess Sarl Reactor has electrostatic contacts solid liquid gas current against gas and liquid multistage for the purification of a gas and liquid transfer.
US5232478A (en) * 1991-11-14 1993-08-03 Farris Richard W Electronic air filter
US5647890A (en) 1991-12-11 1997-07-15 Yamamoto; Yujiro Filter apparatus with induced voltage electrode and method
US5540761A (en) 1991-12-11 1996-07-30 Yamamoto; Yujiro Filter for particulate materials in gaseous fluids
US5210678A (en) 1991-12-16 1993-05-11 Industrial Technology Research Institute Chain-type discharge wire for use in an electrostatic precipitator
DE4141934C1 (en) 1991-12-19 1993-02-18 Metallgesellschaft Ag, 6000 Frankfurt, De
KR940001414B1 (en) 1991-12-31 1994-02-23 강진구 Electric dust collector
DE4200343C2 (en) 1992-01-09 1993-11-11 Metallgesellschaft Ag An electrostatic precipitator
US5217511A (en) 1992-01-24 1993-06-08 The United States Of America As Represented By The Administrator Of The Environmental Protection Agency Enhancement of electrostatic precipitation with electrostatically augmented fabric filtration
FR2690509A1 (en) 1992-04-22 1993-10-29 Electricite De France Convector heater incorporating air purification and humidity control - has filter in air intake, with humidifying, ionising and ozonising unit placed in heated air-stream.
US5549874A (en) 1992-04-23 1996-08-27 Ebara Corporation Discharge reactor
US5254155A (en) 1992-04-27 1993-10-19 Mensi Fred E Wet electrostatic ionizing element and cooperating honeycomb passage ways
US5308586A (en) 1992-05-01 1994-05-03 General Atomics Electrostatic separator using a bead bed
US5282891A (en) 1992-05-01 1994-02-01 Ada Technologies, Inc. Hot-side, single-stage electrostatic precipitator having reduced back corona discharge
CN2153231Y (en) 1992-05-12 1994-01-19 沈阳市仁义有限公司 Electronic chemical comprehensive fresh keeping machine for fruit and vegetable
US5417936A (en) 1992-06-08 1995-05-23 Nippon Ozone Co., Ltd. Plate-type ozone generator
US5250267A (en) 1992-06-24 1993-10-05 The Babcock & Wilcox Company Particulate collection device with integral wet scrubber
DE69321409T2 (en) 1992-07-03 1999-04-01 Ebara Corp A process for producing ozone
US5330559A (en) 1992-08-11 1994-07-19 United Air Specialists, Inc. Method and apparatus for electrostatically cleaning particulates from air
US5474599A (en) 1992-08-11 1995-12-12 United Air Specialists, Inc. Apparatus for electrostatically cleaning particulates from air
US5403383A (en) 1992-08-26 1995-04-04 Jaisinghani; Rajan Safe ionizing field electrically enhanced filter and process for safely ionizing a field of an electrically enhanced filter
US6264888B1 (en) 1992-10-09 2001-07-24 National Jewish Center For Immunology And Respiratory Medicine Ultraviolet germicidal apparatus and method
WO1994008891A1 (en) 1992-10-14 1994-04-28 Novozone (N.Z.) Limited Ozone generation apparatus and method
JP2904328B2 (en) 1992-11-24 1999-06-14 三菱電機株式会社 Microorganism multiplication preventing apparatus
CN2138764Y (en) 1992-12-19 1993-07-21 许泉源 Air purifier for filtering poison, dust-removing and sterifization
US5386839A (en) 1992-12-24 1995-02-07 Chen; Hong Y. Comb
US5545379A (en) 1993-02-05 1996-08-13 Teledyne Industries, Inc. Corona discharge system with insulated wire
US5545380A (en) 1993-02-05 1996-08-13 Teledyne Industries, Inc. Corona discharge system with conduit structure
US5395430A (en) 1993-02-11 1995-03-07 Wet Electrostatic Technology, Inc. Electrostatic precipitator assembly
JP3038522B2 (en) 1993-03-15 2000-05-08 ユーシンエンジニアリング株式会社 Air purifier deodorizing environment purification machine
US5587131A (en) 1993-03-25 1996-12-24 Ozontech Ltd. System for an efficient manufacture of ozone
US5503809A (en) 1993-04-19 1996-04-02 John T. Towles Compact ozone generator
US5665147A (en) 1993-04-27 1997-09-09 Bha Group, Inc. Collector plate for electrostatic precipitator
US5529613A (en) 1993-05-18 1996-06-25 Amron Ltd. Air ionization device
US5419953A (en) 1993-05-20 1995-05-30 Chapman; Rick L. Multilayer composite air filtration media
US5437843A (en) 1993-07-08 1995-08-01 Kuan; Yu-Hung Ozonizer
US5492678A (en) 1993-07-23 1996-02-20 Hokushin Industries, Inc. Gas-cleaning equipment and its use
US5433772A (en) 1993-10-15 1995-07-18 Sikora; David Electrostatic air filter for mobile equipment
US5591334A (en) 1993-10-19 1997-01-07 Geochto Ltd. Apparatus for generating negative ions
CA2136265C (en) 1993-11-22 1999-07-27 Masami Shimizu Apparatus for generating and condensing ozone
US5407469A (en) 1993-12-20 1995-04-18 Sunova Company Improved air ionizing apparatus
US5503808A (en) 1993-12-27 1996-04-02 Ozact, Inc. Portable integrated ozone generator
DE4400517C2 (en) 1994-01-07 1996-11-07 Sorbios Verfahrenstech Device for generating ozone
ES2074029B1 (en) 1994-01-20 1996-03-16 Serra Jaime Tona Device for ozonized peque|as areas or surfaces therapeutic purposes.
US5514345A (en) 1994-03-11 1996-05-07 Ozact, Inc. Method and apparatus for disinfecting an enclosed space
JP2637693B2 (en) 1994-04-05 1997-08-06 三星電子株式会社 Refrigerator of multi-function additional device
US5518531A (en) 1994-05-05 1996-05-21 Joannu; Constantinos J. Ion injector for air handling systems
US5554344A (en) 1994-05-11 1996-09-10 Duarte; Fernando C. Gas ionization device
US5582632A (en) 1994-05-11 1996-12-10 Kimberly-Clark Corporation Corona-assisted electrostatic filtration apparatus and method
US5501844A (en) 1994-06-01 1996-03-26 Oxidyn, Incorporated Air treating apparatus and method therefor
JPH07328475A (en) 1994-06-07 1995-12-19 Keiichi Hara Electric precipitator
US5549735C1 (en) 1994-06-09 2001-08-14 Coppom Technologies Electrostatic fibrous filter
US6680028B1 (en) 1994-06-20 2004-01-20 Clean Air Research & Engineering, Inc. Portable air purifier apparatus and system
JP3431731B2 (en) 1994-08-16 2003-07-28 株式会社荏原製作所 Electron beam irradiation exhaust gas treatment apparatus
US5549795A (en) 1994-08-25 1996-08-27 Hughes Aircraft Company Corona source for producing corona discharge and fluid waste treatment with corona discharge
US5785631A (en) 1994-08-30 1998-07-28 W.A.Y.S.S. Inc. Exercise device
US5637279A (en) 1994-08-31 1997-06-10 Applied Science & Technology, Inc. Ozone and other reactive gas generator cell and system
JP3352842B2 (en) 1994-09-06 2002-12-03 三洋電機株式会社 Thin film forming method by gas cluster ion beam
US5542967A (en) 1994-10-06 1996-08-06 Ponizovsky; Lazar Z. High voltage electrical apparatus for removing ecologically noxious substances from gases
US5508008A (en) 1994-10-27 1996-04-16 Wasser; Robert E. Apparatus for producing ozone with local and remote application
US6309514B1 (en) * 1994-11-07 2001-10-30 Ti Properties, Inc. Process for breaking chemical bonds
US5630990A (en) 1994-11-07 1997-05-20 T I Properties, Inc. Ozone generator with releasable connector and grounded current collector
US5437713A (en) 1994-12-01 1995-08-01 Chang; Chin-Chu Removal device for electrostatic precipitators
US5529760A (en) 1994-12-13 1996-06-25 Burris; William A. Ozone generator
JP3015268B2 (en) 1994-12-27 2000-03-06 オーニット株式会社 Low-temperature plasma generator
US5472456A (en) 1995-01-06 1995-12-05 Larsky; Edvin G. Electrophoretic apparatus and method for applying therapeutic, cosmetic and dyeing solutions to hair
US5573577A (en) 1995-01-17 1996-11-12 Joannou; Constantinos J. Ionizing and polarizing electronic air filter
US5591253A (en) 1995-03-07 1997-01-07 Electric Power Research Institute, Inc. Electrostatically enhanced separator (EES)
US5536477A (en) 1995-03-15 1996-07-16 Chang Yul Cha Pollution arrestor
US5762691A (en) 1995-03-21 1998-06-09 Sikorsky Aircraft Corporation Aerodynamic-electrostatic particulate collection system
US5591412A (en) 1995-04-26 1997-01-07 Alanco Environmental Resources Corp. Electrostatic gun for injection of an electrostatically charged sorbent into a polluted gas stream
US5578280A (en) 1995-04-28 1996-11-26 Americal Environmental Technologies, Inc. Ozone generator with a generally spherical corona chamber
US5573730A (en) 1995-05-09 1996-11-12 Gillum; Theodore J. Method and apparatus for treating airborne residues
US5578112A (en) 1995-06-01 1996-11-26 999520 Ontario Limited Modular and low power ionizer
US5679137A (en) * 1995-06-07 1997-10-21 Honeywell Inc. Optical dirty cell sensor for an electronic air cleaner
US5667563A (en) 1995-07-13 1997-09-16 Silva, Jr.; John C. Air ionization system
US5565685A (en) 1995-07-21 1996-10-15 Light Sources, Inc. Dual intensity ultraviolet lamp
US5630866A (en) 1995-07-28 1997-05-20 Gregg; Lloyd M. Static electricity exhaust treatment device
US5525310A (en) 1995-08-02 1996-06-11 Decker; R. Scott Continuous corona discharge ozone generation device
US5603893A (en) 1995-08-08 1997-02-18 University Of Southern California Pollution treatment cells energized by short pulses
US5614002A (en) 1995-10-24 1997-03-25 Chen; Tze L. High voltage dust collecting panel
US5648049A (en) 1995-11-29 1997-07-15 Alanco Environmental Resources Corp. Purging electrostatic gun for a charged dry sorbent injection and control system for the remediation of pollutants in a gas stream
US5669963A (en) 1995-12-26 1997-09-23 Carrier Corporation Electronic air cleaner
US5641461A (en) 1996-01-26 1997-06-24 Ferone; Daniel A. Ozone generating apparatus and cell therefor
US5656063A (en) * 1996-01-29 1997-08-12 Airlux Electrical Co., Ltd. Air cleaner with separate ozone and ionizer outputs and method of purifying air
US5681434A (en) 1996-03-07 1997-10-28 Eastlund; Bernard John Method and apparatus for ionizing all the elements in a complex substance such as radioactive waste and separating some of the elements from the other elements
US5678237A (en) 1996-06-24 1997-10-14 Associated Universities, Inc. In-situ vitrification of waste materials
JP3407241B2 (en) * 1996-07-02 2003-05-19 富士電機株式会社 The method of operation ozone production facilities
US5702507A (en) 1996-09-17 1997-12-30 Yih Change Enterprise Co., Ltd. Automatic air cleaner
US5667756A (en) 1996-12-18 1997-09-16 Lin-Chang International Co., Ltd. Structure of ozonizer
US6149717A (en) 1997-01-06 2000-11-21 Carrier Corporation Electronic air cleaner with germicidal lamp
US6136074A (en) * 1997-06-18 2000-10-24 Funai Electric Co., Ltd. Air conditioning apparatus with an air cleaning function and electric dust collector for use in the same
US5993738A (en) 1997-05-13 1999-11-30 Universal Air Technology Electrostatic photocatalytic air disinfection
US6187271B1 (en) 1997-08-21 2001-02-13 Lg Electronics, Inc. Electrostatic precipitator
US5997619A (en) 1997-09-04 1999-12-07 Nq Environmental, Inc. Air purification system
US6115230A (en) * 1998-02-03 2000-09-05 Trion, Inc. Method and apparatus for detecting arcs and controlling supply of electrical power
JP2002500562A (en) 1998-03-23 2002-01-08 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Air cleaner
US6270733B1 (en) * 1998-04-09 2001-08-07 Raymond M. Rodden Ozone generator
US6066194A (en) * 1998-04-17 2000-05-23 American Standard Inc. Electronic room air cleaner with variable speed motor
US6512333B2 (en) 1999-05-20 2003-01-28 Lee Chen RF-powered plasma accelerator/homogenizer
US6126722A (en) * 1998-07-28 2000-10-03 The United States Of America As Represented By The Secretary Of Agriculture Electrostatic reduction system for reducing airborne dust and microorganisms
JP3866517B2 (en) 1998-08-06 2007-01-10 株式会社日立製作所 Sample introduction device and ion source and mass spectrometer apparatus using the same
DE19837727A1 (en) 1998-08-20 2000-02-24 Baltic Metalltechnik Gmbh Industrial electrostatic air filter in which the air stream is split up into parallel paths so that a high throughput is possible
US20020155041A1 (en) 1998-11-05 2002-10-24 Mckinney Edward C. Electro-kinetic air transporter-conditioner with non-equidistant collector electrodes
US20020127156A1 (en) 1998-11-05 2002-09-12 Taylor Charles E. Electro-kinetic air transporter-conditioner devices with enhanced collector electrode
US6632407B1 (en) 1998-11-05 2003-10-14 Sharper Image Corporation Personal electro-kinetic air transporter-conditioner
US20020122752A1 (en) 1998-11-05 2002-09-05 Taylor Charles E. Electro-kinetic air transporter-conditioner devices with interstitial electrode
US20030206837A1 (en) 1998-11-05 2003-11-06 Taylor Charles E. Electro-kinetic air transporter and conditioner device with enhanced maintenance features and enhanced anti-microorganism capability
US20020146356A1 (en) 1998-11-05 2002-10-10 Sinaiko Robert J. Dual input and outlet electrostatic air transporter-conditioner
US6958134B2 (en) 1998-11-05 2005-10-25 Sharper Image Corporation Electro-kinetic air transporter-conditioner devices with an upstream focus electrode
US7381381B2 (en) 2002-02-12 2008-06-03 Sharper Image Corporation Air treatment apparatus having an interstitial electrode operable to affect particle flow
US20020150520A1 (en) 1998-11-05 2002-10-17 Taylor Charles E. Electro-kinetic air transporter-conditioner devices with enhanced emitter electrode
US20020122751A1 (en) 1998-11-05 2002-09-05 Sinaiko Robert J. Electro-kinetic air transporter-conditioner devices with a enhanced collector electrode for collecting more particulate matter
US6974560B2 (en) 1998-11-05 2005-12-13 Sharper Image Corporation Electro-kinetic air transporter and conditioner device with enhanced anti-microorganism capability
US6451266B1 (en) 1998-11-05 2002-09-17 Sharper Image Corporation Foot deodorizer and massager system
US7695690B2 (en) 1998-11-05 2010-04-13 Tessera, Inc. Air treatment apparatus having multiple downstream electrodes
US6163098A (en) 1999-01-14 2000-12-19 Sharper Image Corporation Electro-kinetic air refreshener-conditioner with optional night light
US6126727A (en) 1999-01-28 2000-10-03 Lo; Ching-Hsiang Electrode panel-drawing device of a static ion discharger
US6312507B1 (en) 1999-02-12 2001-11-06 Sharper Image Corporation Electro-kinetic ionic air refreshener-conditioner for pet shelter and litter box
DE19907774A1 (en) 1999-02-19 2000-08-31 Schwerionenforsch Gmbh Method for verifying the calculated radiation dose of an ion beam therapy system
JP2000236914A (en) 1999-02-24 2000-09-05 Kyoritsu Denki Sangyo Kk Deodorizer for shoes
WO2000063459A1 (en) 1999-04-17 2000-10-26 Advanced Energy Industries, Inc. Method and apparatus for deposition of diamond like carbon
US6302944B1 (en) * 1999-04-23 2001-10-16 Stuart Alfred Hoenig Apparatus for extracting water vapor from air
US6808606B2 (en) 1999-05-03 2004-10-26 Guardian Industries Corp. Method of manufacturing window using ion beam milling of glass substrate(s)
FR2794295B1 (en) 1999-05-31 2001-09-07 Joel Mercier An ion generator
JP2001056395A (en) 1999-06-11 2001-02-27 Ramuda:Kk Minus ion radiation method and device
US6613277B1 (en) 1999-06-18 2003-09-02 Gerald C. Monagan Air purifier
US6464754B1 (en) 1999-10-07 2002-10-15 Kairos, L.L.C. Self-cleaning air purification system and process
US6471753B1 (en) * 1999-10-26 2002-10-29 Ace Lab., Inc. Device for collecting dust using highly charged hyperfine liquid droplets
JP3287468B2 (en) 1999-11-15 2002-06-04 株式会社オーデン Electrostatic precipitator unit
US6149815A (en) 1999-11-23 2000-11-21 Sauter; Andrew D. Precise electrokinetic delivery of minute volumes of liquid(s)
DE19962665B4 (en) * 1999-12-23 2008-08-21 Siemens Ag Power supply for electrostatic precipitators
CA2395517C (en) 1999-12-24 2009-09-22 Zenion Industries, Inc. Method and apparatus for reducing ozone output from ion wind devices
US6897617B2 (en) 1999-12-24 2005-05-24 Zenion Industries, Inc. Method and apparatus to reduce ozone production in ion wind device
US6803585B2 (en) 2000-01-03 2004-10-12 Yuri Glukhoy Electron-cyclotron resonance type ion beam source for ion implanter
US6616736B2 (en) * 2000-01-25 2003-09-09 Hunter Fan Company Air purifier
JP3716700B2 (en) 2000-02-25 2005-11-16 日新電機株式会社 Ion source and operation method thereof
DE10020382A1 (en) 2000-04-26 2001-10-31 Ceos Gmbh Beam generating system for electrons or ion beams of high current density or high monochromaticity
USD449679S1 (en) * 2000-05-01 2001-10-23 Hamilton Beach/Proctor-Silex, Inc. Air cleaner filter
USD449097S1 (en) * 2000-05-01 2001-10-09 Hamilton Beach/Proctor-Silex, Inc. Air cleaner
US6328791B1 (en) 2000-05-03 2001-12-11 Hamilton Beach/Proctor-Silex, Inc. Air filtration device
US6315821B1 (en) 2000-05-03 2001-11-13 Hamilton Beach/Proctor-Silex, Inc. Air filtration device including filter change indicator
US6585803B1 (en) 2000-05-11 2003-07-01 University Of Southern California Electrically enhanced electrostatic precipitator with grounded stainless steel collector electrode and method of using same
US6809312B1 (en) 2000-05-12 2004-10-26 Bruker Daltonics, Inc. Ionization source chamber and ion beam delivery system for mass spectrometry
US6777686B2 (en) 2000-05-17 2004-08-17 Varian Semiconductor Equipment Associates, Inc. Control system for indirectly heated cathode ion source
US6768110B2 (en) 2000-06-21 2004-07-27 Gatan, Inc. Ion beam milling system and method for electron microscopy specimen preparation
DE10033642C1 (en) 2000-07-11 2001-08-09 Hengst Walter Gmbh & Co Kg electrostatic
US6583544B1 (en) 2000-08-07 2003-06-24 Axcelis Technologies, Inc. Ion source having replaceable and sputterable solid source material
US6491743B1 (en) 2000-09-11 2002-12-10 Constantinos J. Joannou Electronic cartridge filter
WO2002020163A3 (en) 2000-09-11 2002-09-06 Constantinos J Joannou Electrostatically polarized air filter
US6494940B1 (en) 2000-09-29 2002-12-17 Hamilton Beach/Proctor-Silex, Inc. Air purifier
DE10050188C1 (en) 2000-10-09 2002-01-24 Siemens Ag Electrofilter operating method uses filter model divided into zones assigned characteristic values used for regulating energy feed for ensuring operation within particle emission limits
US6576046B2 (en) * 2000-10-19 2003-06-10 Fedders Corporation Modular electrostatic precipitator system
US6805916B2 (en) 2001-01-17 2004-10-19 Research Foundation Of The City University Of New York Method for making films utilizing a pulsed laser for ion injection and deposition
US6544485B1 (en) 2001-01-29 2003-04-08 Sharper Image Corporation Electro-kinetic device with enhanced anti-microorganism capability
EP1358656B1 (en) 2001-02-05 2007-04-04 Gesellschaft für Schwerionenforschung mbH Apparatus for generating and selecting ions used in a heavy ion cancer therapy facility
US20040065201A1 (en) 2001-02-23 2004-04-08 Walter Eckert Electrostatic dust separator with integrated filter tubing
US6806468B2 (en) 2001-03-01 2004-10-19 Science & Engineering Services, Inc. Capillary ion delivery device and method for mass spectroscopy
RU2182850C1 (en) 2001-03-27 2002-05-27 Ооо "Обновление" Apparatus for removing dust and aerosols out of air
US6497754B2 (en) 2001-04-04 2002-12-24 Constantinos J. Joannou Self ionizing pleated air filter system
US6761796B2 (en) 2001-04-06 2004-07-13 Axcelis Technologies, Inc. Method and apparatus for micro-jet enabled, low-energy ion generation transport in plasma processing
US20020152890A1 (en) 2001-04-24 2002-10-24 Leiser Randal D. Electrically enhanced air filter with coated ground electrode
JP3869680B2 (en) 2001-05-29 2007-01-17 株式会社 Sen−Shi・アクセリス カンパニー Ion implantation apparatus
KR100412354B1 (en) 2001-05-30 2003-12-31 삼성전자주식회사 Ion implanter
JP3438054B2 (en) 2001-08-07 2003-08-18 シャープ株式会社 Ion generating element
US6768120B2 (en) 2001-08-31 2004-07-27 The Regents Of The University Of California Focused electron and ion beam systems
JP3242637B1 (en) 2001-11-26 2001-12-25 日本ぱちんこ部品株式会社 The ion generating device
GB0128913D0 (en) 2001-12-03 2002-01-23 Applied Materials Inc Improvements in ion sources for ion implantation apparatus
JP3900917B2 (en) 2001-12-10 2007-04-04 日新イオン機器株式会社 Ion implantation apparatus
GB2386247B (en) 2002-01-11 2005-09-07 Applied Materials Inc Ion beam generator
US6777699B1 (en) 2002-03-25 2004-08-17 George H. Miley Methods, apparatus, and systems involving ion beam generation
US6806035B1 (en) 2002-06-25 2004-10-19 Western Digital (Fremont), Inc. Wafer serialization manufacturing process for read/write heads using photolithography and selective reactive ion etching
JP3791783B2 (en) 2002-07-02 2006-06-28 キヤノンアネルバ株式会社 Ion attachment mass spectrometer, ionization apparatus, and ionization methods
US6806163B2 (en) 2002-07-05 2004-10-19 Taiwan Semiconductor Manufacturing Co., Ltd Ion implant method for topographic feature corner rounding
US6815690B2 (en) 2002-07-23 2004-11-09 Guardian Industries Corp. Ion beam source with coated electrode(s)
US6899745B2 (en) 2002-10-08 2005-05-31 Kaz, Inc. Electrostatic air cleaner
US20040136863A1 (en) 2003-01-14 2004-07-15 Honeywell International Inc. Filtering system including panel with photocatalytic agent
US6785912B1 (en) 2003-01-24 2004-09-07 Burt V. Julio Ion toilet seat
US20040166037A1 (en) 2003-02-25 2004-08-26 Youdell Harry F. Air filtration and treatment apparatus
US6812647B2 (en) 2003-04-03 2004-11-02 Wayne D. Cornelius Plasma generator useful for ion beam generation
US7220295B2 (en) 2003-05-14 2007-05-22 Sharper Image Corporation Electrode self-cleaning mechanisms with anti-arc guard for electro-kinetic air transporter-conditioner devices
US6984987B2 (en) 2003-06-12 2006-01-10 Sharper Image Corporation Electro-kinetic air transporter and conditioner devices with enhanced arching detection and suppression features

Patent Citations (100)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US653421A (en) * 1899-08-22 1900-07-10 William Lorey Filter.
US981695A (en) * 1910-04-12 1911-01-17 Firm Of Th Goldschmidt Means for forming parallel faces on the ends of rails, &c.
US995958A (en) * 1911-02-10 1911-06-20 Louis Goldberg Ozonator.
US1869335A (en) * 1926-12-13 1932-07-26 Day Leonard Electric precipitator
US1791338A (en) * 1927-04-12 1931-02-03 Research Corp Electrical precipitator
US2327588A (en) * 1940-06-01 1943-08-24 Games Slayter Apparatus for conversion of energy
US2509548A (en) * 1948-05-27 1950-05-30 Research Corp Energizing electrical precipitator
US3018394A (en) * 1957-07-03 1962-01-23 Whitehall Rand Inc Electrokinetic transducer
US3026964A (en) * 1959-05-06 1962-03-27 Gaylord W Penney Industrial precipitator with temperature-controlled electrodes
US3374941A (en) * 1964-06-30 1968-03-26 American Standard Inc Air blower
US3518462A (en) * 1967-08-21 1970-06-30 Guidance Technology Inc Fluid flow control system
US3581470A (en) * 1969-12-30 1971-06-01 Emerson Electric Co Electronic air cleaning cell
US3638058A (en) * 1970-06-08 1972-01-25 Robert S Fritzius Ion wind generator
US3744216A (en) * 1970-08-07 1973-07-10 Environmental Technology Air purifier
US4017736A (en) * 1974-09-27 1977-04-12 Ross Henry M Air purification system utilizing ultraviolet radiation
US4092134A (en) * 1976-06-03 1978-05-30 Nipponkai Heavy Industries Co., Ltd. Electric dust precipitator and scraper
US4138233A (en) * 1976-06-21 1979-02-06 Senichi Masuda Pulse-charging type electric dust collecting apparatus
US4102654A (en) * 1976-07-27 1978-07-25 Raymond Bommer Negative ionizer
US4244710A (en) * 1977-05-12 1981-01-13 Burger Manfred R Air purification electrostatic charcoal filter and method
US4259452A (en) * 1978-05-15 1981-03-31 Bridgestone Tire Company Limited Method of producing flexible reticulated polyether polyurethane foams
US4209306A (en) * 1978-11-13 1980-06-24 Research-Cottrell Pulsed electrostatic precipitator
US4244712A (en) * 1979-03-05 1981-01-13 Tongret Stewart R Cleansing system using treated recirculating air
US4318718A (en) * 1979-07-19 1982-03-09 Ichikawa Woolen Textile Co., Ltd. Discharge wire cleaning device for an electric dust collector
US4253852A (en) * 1979-11-08 1981-03-03 Tau Systems Air purifier and ionizer
US4266948A (en) * 1980-01-04 1981-05-12 Envirotech Corporation Fiber-rejecting corona discharge electrode and a filtering system employing the discharge electrode
US4445911A (en) * 1980-12-17 1984-05-01 F. L. Smidth & Co. Method of controlling operation of an electrostatic precipitator
US4659342A (en) * 1980-12-17 1987-04-21 F.L. Smidth & Co. Method of controlling operation of an electrostatic precipitator
US4386395A (en) * 1980-12-19 1983-05-31 Webster Electric Company, Inc. Power supply for electrostatic apparatus
US4496375A (en) * 1981-07-13 1985-01-29 Vantine Allan D Le An electrostatic air cleaning device having ionization apparatus which causes the air to flow therethrough
US4509958A (en) * 1981-10-12 1985-04-09 Senichi Masuda High-efficiency electrostatic filter device
US4502002A (en) * 1982-09-02 1985-02-26 Mitsubishi Jukogyo Kabushiki Kaisha Electrostatically operated dust collector
US4516991A (en) * 1982-12-30 1985-05-14 Nihon Electric Co. Ltd. Air cleaning apparatus
US4587475A (en) * 1983-07-25 1986-05-06 Foster Wheeler Energy Corporation Modulated power supply for an electrostatic precipitator
US4601733A (en) * 1983-09-29 1986-07-22 Dominique Bacot High voltage generator for an electrostatic dust precipitator
US4643745A (en) * 1983-12-20 1987-02-17 Nippon Soken, Inc. Air cleaner using ionic wind
US4674003A (en) * 1984-04-03 1987-06-16 J. Wagner Ag Electronic high-voltage generator for electrostatic sprayer devices
US4600411A (en) * 1984-04-06 1986-07-15 Lucidyne, Inc. Pulsed power supply for an electrostatic precipitator
US4726814A (en) * 1985-07-01 1988-02-23 Jacob Weitman Method and apparatus for simultaneously recovering heat and removing gaseous and sticky pollutants from a heated, polluted gas flow
USRE33927E (en) * 1985-11-08 1992-05-19 Kankyo Company Limited Air cleaner
US5006761A (en) * 1985-12-20 1991-04-09 Astra-Vent Ab Air transporting arrangement
US4726812A (en) * 1986-03-26 1988-02-23 Bbc Brown, Boveri Ag Method for electrostatically charging up solid or liquid particles suspended in a gas stream by means of ions
US4808200A (en) * 1986-11-24 1989-02-28 Siemens Aktiengesellschaft Electrostatic precipitator power supply
US5024685A (en) * 1986-12-19 1991-06-18 Astra-Vent Ab Electrostatic air treatment and movement system
US5012159A (en) * 1987-07-03 1991-04-30 Astra Vent Ab Arrangement for transporting air
US4811159A (en) * 1988-03-01 1989-03-07 Associated Mills Inc. Ionizer
US4941068A (en) * 1988-03-10 1990-07-10 Hofmann & Voelkel Gmbh Portable ion generator
US4940470A (en) * 1988-03-23 1990-07-10 American Filtrona Corporation Single field ionizing electrically stimulated filter
US5012093A (en) * 1988-08-29 1991-04-30 Minolta Camera Co., Ltd. Cleaning device for wire electrode of corona discharger
US5180404A (en) * 1988-12-08 1993-01-19 Astra-Vent Ab Corona discharge arrangements for the removal of harmful substances generated by the corona discharge
USD315598S (en) * 1989-02-15 1991-03-19 Hitachi, Ltd. Electric fan
US5217504A (en) * 1989-03-28 1993-06-08 Abb Flakt Aktiebolag Method for controlling the current pulse supply to an electrostatic precipitator
US5010869A (en) * 1989-08-11 1991-04-30 Zenion Industries, Inc. Air ionization system for internal combustion engines
US5215558A (en) * 1990-06-12 1993-06-01 Samsung Electronics Co., Ltd. Electrical dust collector
US5296019A (en) * 1990-06-19 1994-03-22 Neg-Ions (North America) Inc. Dust precipitation from air by negative ionization
US5196171A (en) * 1991-03-11 1993-03-23 In-Vironmental Integrity, Inc. Electrostatic vapor/aerosol/air ion generator
US5316741A (en) * 1991-05-30 1994-05-31 Zontec Inc. Ozone generator
US5290343A (en) * 1991-07-19 1994-03-01 Kabushiki Kaisha Toshiba Electrostatic precipitator machine for charging dust particles contained in air and capturing dust particles with coulomb force
USD332655S (en) * 1991-10-04 1993-01-19 Patton Electric Company, Inc. Portable electric fan
US5183480A (en) * 1991-10-28 1993-02-02 Mobil Oil Corporation Apparatus and method for collecting particulates by electrostatic precipitation
US5302190A (en) * 1992-06-08 1994-04-12 Trion, Inc. Electrostatic air cleaner with negative polarity power and method of using same
US5435817A (en) * 1992-12-23 1995-07-25 Honeywell Inc. Portable room air purifier
US5378978A (en) * 1993-04-02 1995-01-03 Belco Technologies Corp. System for controlling an electrostatic precipitator using digital signal processing
US5532798A (en) * 1993-05-26 1996-07-02 Minolta Camera Kabushiki Kaisha Charging device having a plate electrode and a cleaning device for cleaning edges of the plate electrode
US5315838A (en) * 1993-08-16 1994-05-31 Whirlpool Corporation Air conditioner filter monitor
US5766318A (en) * 1993-11-24 1998-06-16 Tl-Vent Aktiebolag Precipitator for an electrostatic filter
US5535089A (en) * 1994-10-17 1996-07-09 Jing Mei Industrial Holdings, Ltd. Ionizer
US5484472A (en) * 1995-02-06 1996-01-16 Weinberg; Stanley Miniature air purifier
US5484472C1 (en) * 1995-02-06 2001-02-20 Wein Products Inc Miniature air purifier
US5601636A (en) * 1995-05-30 1997-02-11 Appliance Development Corp. Wall mounted air cleaner assembly
USD377523S (en) * 1995-08-15 1997-01-21 Duracraft Corp. Air cleaner
US5779769A (en) * 1995-10-24 1998-07-14 Jiang; Pengming Integrated multi-function lamp for providing light and purification of indoor air
US5641342A (en) * 1995-12-26 1997-06-24 Carrier Corporation Interlock between cells of an electronic air cleaner
USD389567S (en) * 1996-05-14 1998-01-20 Calor S.A. Combined fan and cover therefor
US6203600B1 (en) * 1996-06-04 2001-03-20 Eurus Airtech Ab Device for air cleaning
US6391259B1 (en) * 1996-06-26 2002-05-21 Ozontech Ltd. Ozone applications for disinfection, purification and deodorization
US6252012B1 (en) * 1996-06-27 2001-06-26 International Business Machines Corporation Method for producing a diffusion barrier and polymeric article having a diffusion barrier
US6042637A (en) * 1996-08-14 2000-03-28 Weinberg; Stanley Corona discharge device for destruction of airborne microbes and chemical toxins
US5879435A (en) * 1997-01-06 1999-03-09 Carrier Corporation Electronic air cleaner with germicidal lamp
US6019815A (en) * 1997-01-06 2000-02-01 Carrier Corporation Method for preventing microbial growth in an electronic air cleaner
US6398852B1 (en) * 1997-03-05 2002-06-04 Eurus Airtech Ab Device for air cleaning
US5893977A (en) * 1997-05-12 1999-04-13 Hercules Products Water ionizer having vibration sensor to sense flow in electrode housing
US6193852B1 (en) * 1997-05-28 2001-02-27 The Boc Group, Inc. Ozone generator and method of producing ozone
US6063168A (en) * 1997-08-11 2000-05-16 Southern Company Services Electrostatic precipitator
US5911957A (en) * 1997-10-23 1999-06-15 Khatchatrian; Robert G. Ozone generator
US6508982B1 (en) * 1998-04-27 2003-01-21 Kabushiki Kaisha Seisui Air-cleaning apparatus and air-cleaning method
US6348103B1 (en) * 1998-05-19 2002-02-19 Firma Ing. Walter Hengst Gmbh & Co. Kg Method for cleaning electrofilters and electrofilters with a cleaning device
US6373723B1 (en) * 1998-06-18 2002-04-16 Kraftelektronik Ab Method and device for generating voltage peaks in an electrostatic precipitator
US6362604B1 (en) * 1998-09-28 2002-03-26 Alpha-Omega Power Technologies, L.L.C. Electrostatic precipitator slow pulse generating circuit
US6182671B1 (en) * 1998-09-29 2001-02-06 Sharper Image Corporation Ion emitting grooming brush
US6504308B1 (en) * 1998-10-16 2003-01-07 Kronos Air Technologies, Inc. Electrostatic fluid accelerator
US6176977B1 (en) * 1998-11-05 2001-01-23 Sharper Image Corporation Electro-kinetic air transporter-conditioner
US6350417B1 (en) * 1998-11-05 2002-02-26 Sharper Image Corporation Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices
US6228149B1 (en) * 1999-01-20 2001-05-08 Patterson Technique, Inc. Method and apparatus for moving, filtering and ionizing air
US6086657A (en) * 1999-02-16 2000-07-11 Freije; Joseph P. Exhaust emissions filtering system
US6182461B1 (en) * 1999-07-16 2001-02-06 Carrier Corporation Photocatalytic oxidation enhanced evaporator coil surface for fly-by control
US6372097B1 (en) * 1999-11-12 2002-04-16 Chen Laboratories Method and apparatus for efficient surface generation of pure O3
US6379427B1 (en) * 1999-12-06 2002-04-30 Harold E. Siess Method for protecting exposed surfaces
US6212883B1 (en) * 2000-03-03 2001-04-10 Moon-Ki Cho Method and apparatus for treating exhaust gas from vehicles
US20030005824A1 (en) * 2000-03-03 2003-01-09 Ryou Katou Dust collecting apparatus and air-conditioning apparatus
US6749667B2 (en) * 2002-06-20 2004-06-15 Sharper Image Corporation Electrode self-cleaning mechanism for electro-kinetic air transporter-conditioner devices

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7767165B2 (en) 1998-11-05 2010-08-03 Sharper Image Acquisition Llc Personal electro-kinetic air transporter-conditioner
US8425658B2 (en) 1998-11-05 2013-04-23 Tessera, Inc. Electrode cleaning in an electro-kinetic air mover
US7662348B2 (en) 1998-11-05 2010-02-16 Sharper Image Acquistion LLC Air conditioner devices
US7976615B2 (en) 1998-11-05 2011-07-12 Tessera, Inc. Electro-kinetic air mover with upstream focus electrode surfaces
US7959869B2 (en) 1998-11-05 2011-06-14 Sharper Image Acquisition Llc Air treatment apparatus with a circuit operable to sense arcing
USRE41812E1 (en) 1998-11-05 2010-10-12 Sharper Image Acquisition Llc Electro-kinetic air transporter-conditioner
US7695690B2 (en) 1998-11-05 2010-04-13 Tessera, Inc. Air treatment apparatus having multiple downstream electrodes
US7262564B2 (en) 2002-07-03 2007-08-28 Kronos Advanced Technologies, Inc. Electrostatic fluid accelerator for and a method of controlling fluid flow
US20040217720A1 (en) * 2002-07-03 2004-11-04 Krichtafovitch Igor A. Electrostatic fluid accelerator for and a method of controlling fluid flow
US6919698B2 (en) 2003-01-28 2005-07-19 Kronos Advanced Technologies, Inc. Electrostatic fluid accelerator for and method of controlling a fluid flow
US7906080B1 (en) 2003-09-05 2011-03-15 Sharper Image Acquisition Llc Air treatment apparatus having a liquid holder and a bipolar ionization device
US7724492B2 (en) 2003-09-05 2010-05-25 Tessera, Inc. Emitter electrode having a strip shape
US7767169B2 (en) 2003-12-11 2010-08-03 Sharper Image Acquisition Llc Electro-kinetic air transporter-conditioner system and method to oxidize volatile organic compounds
US8043573B2 (en) 2004-02-18 2011-10-25 Tessera, Inc. Electro-kinetic air transporter with mechanism for emitter electrode travel past cleaning member
US20050223898A1 (en) * 2004-04-12 2005-10-13 Ali Nikkhah Cleaning mechanism for ion emitting air conditioning device
US6855190B1 (en) 2004-04-12 2005-02-15 Sylmark Holdings Limited Cleaning mechanism for ion emitting air conditioning device
US6977008B2 (en) 2004-04-12 2005-12-20 Sylmark Holdings Limited Cleaning mechanism for ion emitting air conditioning device
US6946103B1 (en) 2004-06-01 2005-09-20 Sylmark Holdings Limited Air purifier with electrode assembly insertion lock
US7897118B2 (en) 2004-07-23 2011-03-01 Sharper Image Acquisition Llc Air conditioner device with removable driver electrodes
US20060130657A1 (en) * 2004-12-22 2006-06-22 Oreck Holdings, Llc Tower ionizer air cleaner
US7713330B2 (en) * 2004-12-22 2010-05-11 Oreck Holdings, Llc Tower ionizer air cleaner
US8049426B2 (en) 2005-04-04 2011-11-01 Tessera, Inc. Electrostatic fluid accelerator for controlling a fluid flow
US7833322B2 (en) 2006-02-28 2010-11-16 Sharper Image Acquisition Llc Air treatment apparatus having a voltage control device responsive to current sensing
US7900372B2 (en) * 2008-04-18 2011-03-08 Mabe Canada Inc. Clothes dryer with louvre cover
US8861167B2 (en) 2011-05-12 2014-10-14 Global Plasma Solutions, Llc Bipolar ionization device
CN103381393A (en) * 2013-02-04 2013-11-06 林爱华 Vehicle-mounted air purifier

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