GB2468504A - Air sterilisation unit - Google Patents

Air sterilisation unit Download PDF

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Publication number
GB2468504A
GB2468504A GB0904175A GB0904175A GB2468504A GB 2468504 A GB2468504 A GB 2468504A GB 0904175 A GB0904175 A GB 0904175A GB 0904175 A GB0904175 A GB 0904175A GB 2468504 A GB2468504 A GB 2468504A
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GB
United Kingdom
Prior art keywords
air
unit according
sterilisation unit
sterilisation
unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB0904175A
Other versions
GB0904175D0 (en
Inventor
Barry Pollard
Martin E Brown
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
UVGI Systems Ltd
Original Assignee
UVGI Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by UVGI Systems Ltd filed Critical UVGI Systems Ltd
Priority to GB0904175A priority Critical patent/GB2468504A/en
Publication of GB0904175D0 publication Critical patent/GB0904175D0/en
Publication of GB2468504A publication Critical patent/GB2468504A/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
    • A61L9/18—Radiation
    • A61L9/20—Ultraviolet radiation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-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
    • F24F3/12—Air-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
    • F24F3/16—Air-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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS 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
    • A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
    • A61L2209/10—Apparatus features
    • A61L2209/11—Apparatus for controlling air treatment
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/14—Details or features not otherwise provided for mounted on the ceiling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)

Abstract

An air sterilisation unit comprises an air intake, ultraviolet (UV) lamps 10 for sterilising air, an air outlet and a motor driven centrifugal fan 9 for drawing air through the intake. The air having been drawn through the intake is passed via the UV lamps and expelled through the air outlet. The air outlet comprises one or more nozzles 15 through which air is expelled as a jet. The direction of each nozzle may be adjustable. Preferably, the air outlet comprises at least twenty nozzles which may be disposed around some or all of the periphery of the air intake. The air sterilisation unit can be sized and arranged to fill the space of a single ceiling tile in a tiled ceiling. Control apparatus may be incorporated into the air sterilisation unit to control the ultraviolet lamps and the fan.

Description

AIR STERILISATION UNIT
The present invention relates to an air sterilisation unit. The invention particularly, but not exclusively, relates to a self contained air sterilisation unit capable of sterilizing air in a comparatively large space compared to conventional units. The unit has application in a wide variety of locations including offices, commercial kitchens and hospital wards.
Apparatus for sterilisation of air is known. They may be included in central, ducted, heating, ventilation and air conditioning systems. Self contained wall mounted air sterilisation units are also known for use in spaces where there is a no existing ventilation system. However, these have tended to be relatively bulky and intrusive as well as only being effective to sterilise air in a relatively small volume adjacent the unit.
It is an object of embodiments of the present invention to address these problems.
According to an aspect of the present invention there is provided an air sterilisation unit comprising an air intake, a means for sterilising air, an air outlet and a means for drawing air in through the intake, passing it via the means for sterilising and expelling it through the air outlet, characterised in that the air outlet comprises one or more nozzles through which air is, in use, expelled as a jet.
Provision of one or more nozzles so that sterilised air is expelled as a jet, at a relatively high velocity extends the range of influence of the unit. High jet velocity induces or influences a much larger volume of room air than conventional air discharge products. By utilizing this high velocity method it produces a more positive mixing effect which in turn creates a higher average room velocity (i.e. it agitates the room air more). High jet velocity also promotes a co-ander' effect whereby the discharged air attaches or eritrains itself to a surface such as a ceiling thereby stopping the air from immediately falling away from the ceiling the further the air travels from the unit. Air jetting in turn helps to ensure that draughts within the room do not occur because the high velocity air trains across the ceiling surface until the velocity diminishes to acceptable levels where uncomfortable draughts no longer exist. Air jets also enable the unit to break up and disperse pockets of untreated air remote from the unit. This enables a relatively small unit to sterilise the air in a comparatively large space.
The direction of the or each nozzle may be adjustable.
The air sterilisation unit may be contained in a housing with the air intake arid outlet being formed in the housing. The means for sterilising air may be a source of ultraviolet (UV) radiation. The means for drawing air in through the air inlet and expelling it through the outlet may be a motor driven fan. The motor driven fan may be operable by a user to run at different speeds. The air outlet preferably comprises a plurality of nozzles. In one embodiment there are at least twenty nozzles, in another at least sixty. The nozzles may be disposed around some or all of the periphery of the air intake. The air intake may be covered by a grille.
The housing may be adapted to be mounted in a recess in a surface, for example a wall or ceiling. Typically, it is preferred that the unit be ceiling mounted as this is generally least intrusive, whilst allowing the unit to effectively clean air throughout a room. The unit may be sized and arranged to fill the space of a single ceiling tile so that it can be unobtrusively installed, in place of a single tile, in a tiled ceiling.
In one arrangement a unit is operable to produce an air flow of at least 0.075m3/s, preferably at least 0.1m3/s and more preferably at least 0.15m3/s and still more preferably at least 0.22m3/s. The air flow is directed through 120 nozzles each with a cross-sectional area in the region of 100-120mm2. This results in an approximate minimum jet velocity of about 5mIs. The jet velocity is preferably greater than 7mIs and more preferably greater than lOmIs.
The unit may comprise a control means operable to control the fan and sterilising means. The control unit may be programmable andlor remotely operable.
The unit may also comprising a display operative to indicate an operational andlor mechanical state of the unit.
For ease of access for maintenance or repair the housing may have an access door or panel. Where an access door is provided a safety interlock may also be provided so that operation of the unit is disabled, or at least operation of the means for sterilising air is disabled, when the access door is opened. The access door may be fitted with a lock. The lock may be operable by key or code so that only authorised persons may gain access to the unit.
According to a second aspect of the present invention there is provided a sterilisation unit comprising a housing into which air is drawn for sterilisation and from which the sterilised air is expelled, the housing comprising an access door or panel which can be opened to allow access to the housing to enable repair or replacement of components of the unit.
In order that the invention may be more clearly understood an embodiment thereof will now be described by way of example, with reference to the accompanying drawings of which: Figure 1 is a cross-sectional view of an air sterilisation unit according to the invention; Figure 2 is an underplan view of the unit of Figure 1; Figure 3 is a side elevational view of the unit of Figure 1; and Figure 4 is a view of a room in which the unit of Figure 1 is installed.
Referring to the drawings, an air sterilisation Unit comprises an housing I arranged to be suspended via suspension points 2 by way of hangers 3. References to top, bottom, side and like terms refer to the unit as illustrated and in the orientation it is intended to be used, but are not intended to be otherwise limited. For example, although the unit is illustrated as ceiling mounted, wall mounting with the unit rotated through 900 is also possible.
The underside of the housing I defines a generally rectangular air inlet covered by a hingedly mounted grille 4. The grille may be opened as shown in broken lines in Figure 1, to allow replacement of a filter pad S and access to the interior of the housing 1 for maintenance or repair of the unit. The grille 4 may be retained in a closed position by a lock 6. The grille is associated with an electrical switch (not shown) arranged to disable operation of the unit when the grille is opened.
Extending into the housing around the air inlet is an upstanding wall defining a duct 7, leading to an inlet cone 8 of an electric motor driven centrifugal fan 9.
Within the duct are mounted two elongate ultraviolet (UV) lamps 10 with associated replaceable reflectors 11. Control apparatus is also mounted in the duct, in a removable box 12. The control apparatus is operative to control operation of the motor drive fan 9 and UV lamps 10, under control from a user via a remote control unit (not shown). The control unit is programmable enabling a user to programme a predetermined sequence of operations. On the underside of the housing, and spaced apart from both of the long sides of the air intake, and communicating with the space inside the housing outside the duct 7 are a plurality of nozzles 15. There are three rows of twenty nozzles 15 on each side of the intake. Each nozzle defines a substantially circular aperture through which air may flow. Each nozzle has an outlet area of 109mm2, The nozzles are directed at an angle of about 450 to the underside of the unit, in a direction towards the outside edge of the underside of the unit.
At least part of the interior of the housing 1 and the duct 7 are provided with acoustic insulation material 13 to absorb sound generated by the unit when operating.
Electrical power is supplied to the unit via a flying lead 14.
On the underside of the unit there is provided a visual indicator 16 to indicate operation of the unit to a user. The indicator may be an LED.
In one arrangement (others are possible) the motor driven fan is operable at three predetermined speeds to generate approximate air flows through the unit of 0.1, 0.15 and 0.22m31s respectively. This generates air velocities through the nozzles 15 of about 7.6, 11.5 and 16.8mIs respectively. Such a unit is suitable for treatment of a room with a volume of about 50m3.
In use the motor driven fan 9 operates and draws air from the room in which the unit is installed into the housing I via the grille 4 and through the filter pad 5 which removes contaminants from the air down to a size dependent on the type of pad employed. The air then enters the duct 7 where it is exposed to UV radiation from the lamps 10 which is directed by reflectors 11 to maximise the intensity of light in the duct 7. The IJV radiation acts to kill microbial matter in the air, sterilising the air.
The sterilised air is then drawn into the fan 9 via the cone 8 and expelled into the region of the housing I outside the duct 7 and from there through the nozzles 15 into the room. The nozzles 15 cause the air to be expelled from the unit in a plurality of high speed jets maximising the penetration of sterilised air into the room and causing air in the room to be disturbed and mixed with the sterilised air. This enables sterilised air to penetrate all parts of the room so that the relatively small unit can effectively sterilise air throughout the room as room air is re-circulated through the unit. Air flow is indicated in Figures 1 and 4 by arrows 17.
The control apparatus allows acts to control various parameters of the unit, for example the speed of operation of the fan. The control apparatus can operate to control as many or as few parameters or parts of the unit as desired. Adjustment of these parameters is therefore conveniently achieved. Within the control apparatus there is provided a "lamp run" meter to register actual run time of the UV lamps to ensure that the lamps are replaced as recommended by manufacturers to retain optimum performance.
The speed of operation of the fan can be controlled remotely by a user. For normal operation a low speed is desirable to keep noise to a minimum. A higher speed may be selected as desired to ensure thorough cleansing of air in the room.
In the event that maintenance or repair is required, for example replacement of the filter pad 5 or lamps 10, a maintenance operative is provided with a key for the lock 6 enabling grill 4 to be opened. When the grille is opened operation of the unit is automatically disabled.
Provision of outlet nozzles enables the described embodiment to achieve a far greater throw of sterilised air into a room, in a more focused manner than with conventional units.
The above embodiment is described by means of example only. Many variations are possible without departing from the invention.

Claims (24)

  1. SCLAIMS1. An air sterilisation unit comprising an air intake, a means for sterilising air, an air outlet and a means for drawing air in through the intake, passing it via the means for sterilising and expelling it through the air outlet, characterised in that the air outlet comprises one or more nozzles through which air is, in use, expelled as a jet.
  2. 2. An air sterilisation unit according to claim 1 wherein the direction of the or each nozzle is adjustable.
  3. 3. An air sterilisation unit according to either of claims I or 2 wherein the air o sterilisation unit is contained in a housing with the air intake and outlet being fonned in the housing.8
  4. 4. An air sterilisation unit according to claim 3 wherein the housing is adapted to C he mounted in a recess in a surface.r. ... . . .
  5. 5. An air stenlisation unit according to any preceding claim wherein the means for sterilising air is a source of ultraviolet (UV) radiation.
  6. 6. An air sterilisation unit according to any preceding claim wherein the means for drawing air in through the air inlet and expelling it through the outlet is a motor driven fan.
  7. 7. An air sterilisation unit according to claim 6 wherein the motor driven fan is operable by a user to run at different speeds.
  8. 8. An air sterilisation unit according to either of claims 6 or 7 wherein the unit comprises a control means operable to control the fan and sterilising means.
  9. 9. An air sterilisation unit according to any preceding claim wherein the air outlet comprises at least twenty nozzles.
  10. 10. An air sterilisation unit according to claim 9 wherein the nozzles are disposed around some or all of the periphery of the air intake.
  11. 11. An air sterilisation unit according to any preceding claim wherein the air intake is covered by a grille.
  12. 12. An air sterilisation unit according to any preceding claim wherein the unit is sized and arranged to fill the space of a single ceiling tile so that it can be unobtrusively installed, in place of a single tile, in a tiled ceiling.
  13. 13. An air sterilisation unit according to any preceding claim wherein the unit is operable to produce an air flow of at least 0.075m3/s.o 10
  14. 14. An air sterilisation unit according to claim 13 wherein the unit is operable to produce an air flow of at least 0.1m3/s.8
  15. 15. An air sterilisation unit according to claim 14 wherein the unit is operable to C produce an air flow of at least 0.l5in3/s.
  16. 16. An air sterilisation unit according to claim 15 wherein the unit is operable to produce an air flow of at least 0.22m3/s.
  17. 17. An air sterilisation unit according to any preceding claim wherein the air flow is directed through 120 nozzles each with a cross-sectional area in the region of 100-120mm2.
  18. 18. An air sterilisation unit according to any preceding claim wherein the jet velocity is greater than 7nils.
  19. 19. An air sterilisation unit according to claim 18 wherein the jet velocity is greater than 1 Ont1s.
  20. 20. An air sterilisation unit according to any preceding claim wherein the unit comprises a display operative to indicate an operational and/or mechanical state of the unit.
  21. 21. An air sterilisation unit according to claim 3 or any of claims 4 to 20 when dependent on claim 3 wherein the housing has an access door or panel for ease of access for maintenance or repair of the housing.
  22. 22, An air sterilisation unit according to claim 21 wherein the access door is provided with a safety interlock so that operation of the unit is disabled, or at least operation of the means for sterilising air is disabled, when the access door is opened.r
  23. 23. An air sterilisation unit according to either of claims 21 or 22 wherein the 8 access door is fitted with a lock.o
  24. 24. An air sterilisation unit substantially as described herein with reference to the accompanying drawings.
GB0904175A 2009-03-11 2009-03-11 Air sterilisation unit Withdrawn GB2468504A (en)

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Application Number Priority Date Filing Date Title
GB0904175A GB2468504A (en) 2009-03-11 2009-03-11 Air sterilisation unit

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Application Number Priority Date Filing Date Title
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GB2468504A true GB2468504A (en) 2010-09-15

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Cited By (22)

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Publication number Priority date Publication date Assignee Title
WO2012174156A1 (en) * 2011-06-15 2012-12-20 Airius Ip Holdings, Llc Columnar air moving devices and systems
US8616842B2 (en) 2009-03-30 2013-12-31 Airius Ip Holdings, Llc Columnar air moving devices, systems and method
CN104279682A (en) * 2014-11-05 2015-01-14 四川迈铁龙科技有限公司 Jet-type station air conditioning device
US9151295B2 (en) 2008-05-30 2015-10-06 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
CN104990195A (en) * 2015-01-27 2015-10-21 牛京伟 Ceiling type fresh air purifier
USD746971S1 (en) 2012-05-15 2016-01-05 Airius Ip Holdings, Llc Air moving device
US9335061B2 (en) 2008-05-30 2016-05-10 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
CN105972698A (en) * 2016-05-31 2016-09-28 徐秀 Air purifier mounted on ceiling
US9631627B2 (en) 2004-03-15 2017-04-25 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US9702576B2 (en) 2013-12-19 2017-07-11 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
USD805176S1 (en) 2016-05-06 2017-12-12 Airius Ip Holdings, Llc Air moving device
USD820967S1 (en) 2016-05-06 2018-06-19 Airius Ip Holdings Llc Air moving device
US10024531B2 (en) 2013-12-19 2018-07-17 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US10221861B2 (en) 2014-06-06 2019-03-05 Airius Ip Holdings Llc Columnar air moving devices, systems and methods
CN110345578A (en) * 2013-09-05 2019-10-18 首尔伟傲世有限公司 Utilize the air cleaning unit of ultraviolet light
US10487852B2 (en) 2016-06-24 2019-11-26 Airius Ip Holdings, Llc Air moving device
CN111121210A (en) * 2019-12-27 2020-05-08 蒙珊 A ventilation unit for hemopathy patient ward
USD885550S1 (en) 2017-07-31 2020-05-26 Airius Ip Holdings, Llc Air moving device
USD886275S1 (en) 2017-01-26 2020-06-02 Airius Ip Holdings, Llc Air moving device
USD887541S1 (en) 2019-03-21 2020-06-16 Airius Ip Holdings, Llc Air moving device
US20220120459A1 (en) * 2020-10-21 2022-04-21 Paul Bemis Tabletop bio-safty air curtain
US11598539B2 (en) 2019-04-17 2023-03-07 Airius Ip Holdings, Llc Air moving device with bypass intake

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US9631627B2 (en) 2004-03-15 2017-04-25 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US10487840B2 (en) 2004-03-15 2019-11-26 Airius Ip Holdings, Llc Temperature destratification systems
US11703062B2 (en) 2004-03-15 2023-07-18 Airius Ip Holdings, Llc Temperature destratification systems
US9714663B1 (en) 2004-03-15 2017-07-25 Airius Ip Holdings, Llc Temperature destratification systems
US11053948B2 (en) 2004-03-15 2021-07-06 Airius Ip Holdings, Llc Temperature destratification systems
US11365743B2 (en) 2004-03-15 2022-06-21 Airius Ip Holdings, Llc Temperature destratification systems
US9151295B2 (en) 2008-05-30 2015-10-06 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US9335061B2 (en) 2008-05-30 2016-05-10 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US9459020B2 (en) 2008-05-30 2016-10-04 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US9970457B2 (en) 2008-05-30 2018-05-15 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
US8616842B2 (en) 2009-03-30 2013-12-31 Airius Ip Holdings, Llc Columnar air moving devices, systems and method
WO2012174156A1 (en) * 2011-06-15 2012-12-20 Airius Ip Holdings, Llc Columnar air moving devices and systems
US10184489B2 (en) 2011-06-15 2019-01-22 Airius Ip Holdings, Llc Columnar air moving devices, systems and methods
AU2012271641B2 (en) * 2011-06-15 2015-10-01 Airius Ip Holdings, Llc Columnar air moving devices and systems
USD926963S1 (en) 2012-05-15 2021-08-03 Airius Ip Holdings, Llc Air moving device
USD783795S1 (en) 2012-05-15 2017-04-11 Airius Ip Holdings, Llc Air moving device
USD746971S1 (en) 2012-05-15 2016-01-05 Airius Ip Holdings, Llc Air moving device
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