US3767300A - Pollution control system for duplicator machine - Google Patents

Pollution control system for duplicator machine Download PDF

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Publication number
US3767300A
US3767300A US00260453A US3767300DA US3767300A US 3767300 A US3767300 A US 3767300A US 00260453 A US00260453 A US 00260453A US 3767300D A US3767300D A US 3767300DA US 3767300 A US3767300 A US 3767300A
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United States
Prior art keywords
air
cabinet
liquid
developer
water
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Expired - Lifetime
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US00260453A
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English (en)
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P Brown
A Brown
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Savin Corp
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P Brown
A Brown
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Assigned to FOOTHILL CAPITAL CORPORATION, A CA. CORP. reassignment FOOTHILL CAPITAL CORPORATION, A CA. CORP. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SAVIN CORPORATION
Anticipated expiration legal-status Critical
Assigned to SAVIN CORPORATION reassignment SAVIN CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: FOOTHILL CAPITAL CORPORATION
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    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03G—ELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G15/00—Apparatus for electrographic processes using a charge pattern
    • G03G15/06—Apparatus for electrographic processes using a charge pattern for developing
    • G03G15/10—Apparatus for electrographic processes using a charge pattern for developing using a liquid developer
    • G03G15/107—Condensing developer fumes

Definitions

  • ABSTRACT A pollution control system for an electrostatic copying machine employing a developer made up of toner suspended in a light, hydrocarbon liquid carrier in which polluted air from the region of the photoconductive surface enclosed in a generally closed cabinet is passed through a cold trap to produce a condensate made up of the carrier liquid and water in which the condensate is separated into its component parts and the carrier liquid is returned to the supply and in which the cleared air is fed to an air knife which removes excess developer from the photoconductive surface immediately following development.
  • the carrier liquid may be of any suitable type such, for example, as lsopar G, which is the registered trademark of Humble Oil and Refining Company for a narrow-cut, isoparaffinic, hydrocarbon fraction with an extremely high level of purity.
  • This developer incorporating lsopar G as a carrier liquid may be applied to the photoconductive surface in a number of ways. conventionally, the photoconductive surface is moved past the developing system. The developing system directs developing liquid upwardly and into contact with the image as the photoconductive surface moves past the developer unit.
  • One object of our invention is to provide a pollution control system for an electrostatic copying machine.
  • Another object of our invention is to provide a pollution control system for an electrostatic copier which permits ofrecovery and reuse of the developer carrier liquid.
  • a further object of our invention is to provide a pollution control system for an electrostatic copier which is self-contained.
  • Still another object of our invention is to provide a pollution control system for an electrostatic copier which cools the machine cabinet.
  • Yet another object of our invention is to provide a pollution control system for an electrostatic copier which is quiet in operation.
  • a still further object of our invention is to provide a pollution control system for an electrostatic copier which is rugged and requires little maintenance.
  • our invention contemplates the provision of a pollution control system for an electrostatic copying machine employing a liquid developer in which polluted air from adjacent to the surface of a photoconductive element in a generally closed cabinet is drawn into a cold trap to produce a condensate made up of the liquid hydrocarbon carrier and water, which condensate is carried to a separating system which separates the carrier liquid from the water and returns the carrier liquid to the supply.
  • the cleaned air is circulated back to an air knife or the like directed against the photoconductive surface as it emerges from the de veloper system.
  • FIG. 1 is a-plot of saturation pollution in terms of parts per million of carrier in air versus temperature.
  • FIG. 2 is a schematic view of our pollution control system for an .electrostatic copying machine.
  • Isopar G and similar light hydrocarbon liquids are a health hazard at approximately 500 parts per million in air.
  • one type of electrostatic copying machine indicated generally by the reference character 10, with which our pollution control system can be used, includes a cabinet indicated generally by the reference character 12, having a base 14, sides 16, a front 18, a back 20, and a top 22.
  • a cabinet 12 having a base 14, sides 16, a front 18, a back 20, and a top 22.
  • the interior space 24 is substantially closed to the surrounding space. That is to say, the cabinet is not open to the atmosphere save for the opening through which the completed copy is discharged in a manner to be described hereinbelow.
  • the machine 10 includes a drum 26 supported for rotarymovement on a shaft 28.
  • the drum 26 has a surface 30 which is photoconductive owing to the presence of a thin film of a suitable photoconductive material on the drum.
  • the surface 30 of the drum 26 first moves past a charging station at which we locate a'corona 32 which applies a uniformelectrostatic charge over the surface moving thereby.
  • the surfacecarrying the charge After leaving the corona 32 the surfacecarrying the charge passes by an exposure station at which a suitable projection system 34 focuses an image of the original to be copied onto the surface. Since the details of the lens system and the original transport system do not, per se, form any part of ourinvention, they will not be described in detail.
  • the surface moves through developer apparatus indicated generally by the reference character 36.
  • our system employs a liquid developer comprising a toner of any suitable type suspended in a carrier liquid such, for example, as Isopar G.
  • the developer liquid is fed from a supply tank 38 by means of a pump 40 to an inlet line 42 leading into the apparatus 36. Developer from the apparatus 36 travels through a return line 44 back to the supply tank 38.
  • an air knife 46 of the type described in the copending Smith et-al. application referred to 'hereinabove for directing a thin curtain of air toward the photoconductive surface so as to cause return of excess developer to the apparatus 36.
  • the air knife 46 may produceaerosols which increase pollution within the cabinet 12 over that which is the result of evaporation of carrier liquid from the photoconductive surface 30.
  • Our control system includes a cooling unit having a cabinet 68 mountedin the wall 20 of the machine cabinet 12.
  • cabinet 68 with a partition forming a vaporbarrier which divides the cabinet into an evaporator section, indicated generally by the reference character 72, and a compressor section, indicated generally by the reference character 74.
  • a compressor piston 76 mounted for reciprocating movement in a cylinder 78 is adapted to compress a refrigerant to a liquid state in a manner to be described.
  • Cylinder 78 has an inlet 80 to a subchamber having a valve 82 which permits the expanded refrigerant to flow into cylinder 78 above the piston 76.
  • Liquid refrigerant from the coil 84 passes through the partition 70 and through an expansion valve 98 in the connecting tube so as to expand into the evaporator coils 100 of the unit.
  • the gas expanding into the coils 100 forms a cold trap which is adapted to condense both lsopar G and the water from air entering the section 72.
  • the section 72 with an inlet opening 104 through which polluted air is adapted to enter the section 72.
  • the level of pollution in the air entering the cold trap 72 must be sufficiently high to allow dew point of the lsopar to be above the freezing point of water vapor to prevent the cold trap from freezing up.
  • Condensate from the coils 100 of the cold trap flows to the bottom of the chamber 72 and thence outwardly through a drain pipe 11% extending to a point adjacent to the bottom of a tank 120.
  • the lsopar G has a specific gravity of about 0.75, it separates from the water in the tank 120 :so that the tank 120 has an under layer of water 124 and an upper layer of lsopar G 122.
  • the level of liquid in the tank 120 reaches a point adjacent to the top of the tank the lsopar G from the upper layer 122 flows through a pipe 126 back to the developer supply tank 38.
  • a line 128 adjacent to the bottom of the tank has a valve 130 therein adapted to be opened upon energization of a solenoid (not shown) to cause water in the bottom of the tank to flow outwardly of the cabinet B2.
  • a float 132 and its associated structure to be described has such a weight that the float floats at the parting line between the layers of liquid 122 and 124.
  • a rod 134 on the float extends upwardly out of the tank 120.
  • a switch 136 is provided with a toggle arm 138 adapted to be actuated in one direction to close the switch to energize the solenoid of valve 130 and adapted to be actuated in the other direction to open the switch to de-energize the solenoid associated with valve 130.
  • Arm 138 carries a collar 140 surrounding the rod 134. We secure an upper actuator 142 to the end of the rod 134 above the collar 140.
  • a second actuator 144 is secured to the rod at a location between the collar 140 and the float 132.
  • actuator 144 engages collar 140 to close switch 136 to open valve 130 to permit water to flow outwardly from the tank 120.
  • actuator 142 engages collar 140 to open switch 136 to permit valve 130 to close.
  • rollers 56 and 58 carry the length of paper having the developed image thereon outwardly of the machine through aperture 64 and past knives 6t) and 62 which are operated to out the copy to length.
  • our machine not only prevents the escape of any large amount of highly polluted air to the 7 surrounding space but also reduces pollution within the cabinet 12'from the extremely high level which otherwise would exist to a level which ensures that pollution of the space in which the machine'is used will be negligible even after a long period of continuous use of the machine. Since only a minor portion of air can escape from the outlet 64, our pollution control system 66 does not permit any large amount of polluted air to escape to the atmosphere. Moreover, it closely controls pollution in the space 24. Blower 14 draws air through the duct 106 from adjacent to the surface 30 of drum 26 to the cold trap space 72. This highly polluted air is brought into contact with fins 102 on the evaporator coils 100 to produce a condensate containing both lsopar G and water which flows downwardly in the chamber 72 and outwardly through pipe 118 to tank 120.
  • the condensate separates intank 120 into an upper layer 122 of separated lsopar G and a lower layer 124 of water.
  • lsopar G flows outwardly through the pipe 126 and back to the developer supply tank 38.
  • actuator 144 strikes collar 140 to close switch 136 to cause valve 130 to open to permit water to flow outwardly from the bottom of the tank 120. This outflow of water continues until the water level drops to a point at which actuator 142 strikes collar 140 to open the switch to close valve 130 to shutoff the outflow of water.
  • a dangerous level of pollution of lsopar G in air is about five hundred parts per million.
  • a particular example of my system which held pollution in the room in which the machine was operated towell below a dangerous level employed a modified 5,000 BTU per hour air condition unit.
  • the thermostatic control of the unit was bypassed so that the compressor ran continously.
  • the partition 70 was installed to form a vapor barrier between the evaporator and condenser sections to prevent leakage of pollution from the cabinet 12 to the room.
  • the condensate drain was relocated to the point shown under the evaporator coil which will permit condensed carrier liquid and water to flow into the tank 120. In that arrangement, air was circulated through the section 72 at about 200 cubic feet per minute.
  • the unit maintained the inside of the cabinet 12 at slightly below room temperature, well below the danger level.
  • the flow from the air knife 46 was regulated to about cubic feet per minute at 150 miles per hour.
  • Drum 26 was rotated at a surface speed of about 60 feet per minute.
  • the gap between the knife 46 and the surface 30 of the drum was arranged to be about 0.063 inches.
  • the air heater 112 was operated at 600 watts.
  • pollution in the test room leveled out at an average of about 12 parts per million per 960 cubic feet or 23 parts per million for the specified spaced of 500 cubic feet.
  • pollution of the space in which the machine was used was negligible.
  • pollution within the cabinet was about 700 parts per million. From FIG. 1 it can be seen that this is far below the saturation pollution which would be expected at the normal interior temperature of cabinet l2.
  • a pollution control system for an electrostatic copying machine utilizing a liquid developer made up of toner in a liquid carrier apparatus including a cabinet, a reservoir of said liquid developer, means in said cabinet providing a photoconductive surface adapted to receive a latent electrostatic'image, means in said cabinet for applying developer from said reservoir to a latent image on said surface, a cooling unit having a housing, an evaporator section forming a cold trap in said housing, a compressor section in said housing,
  • Apparatus as in claim '1 including means for re turning condensed carrier liquid from said cold trap-to said reservoir.
  • said separator comprises a tank, means for conducting condensate from said cold trap to said tank, means for removing separated carrier liquid from adjacent to the top of said tank and means adapted to be actuated to remove separated water from adjacent to the bottom of said tank.
  • said water removal means comprises a normally closed valve, means responsive to a predetermined high level of water in said tank for opening said valve and means responsive to a predetermined low level of water in said tank for closing said valve.
  • Apparatus as in claim 1 including means for removing excess developer liquid from said photoconductive surface following application of said developer thereto.
  • a pollution control system for an electrostatic copying machine utilizing a liquid developer-made up of toner in a liquid carrier, a cabinet, means in said cabinet providing a photoconductive surface adapted to receive a latent electrostatic image, a developer reservoir, means in said cabinet for applying developer from said reservoir to said image on said surface, a cooling unit comprising an evaporator section and a condenser section and a vapor barrier between said sections, means for passing air from said cabinet through said evaporator section to produce a condensate made up of water and said developer carrier liquid, means for separating said condensate into carrier liquid and water and means for returning separated carrier liquid to said reservoir.
  • Apparatus as in claim 9 including means for directing a stream of high velocity air adjacent to said surface following the application of developer thereto to remove excess liquid from said surface.
  • Apparatus as in claim 10 in which said means for passing air through said evaporator section includes means for recycling air from said evaporator section to said air stream directing means.
  • Apparatus as in claim 11 including means for heating air being recycled.
  • Apparatus as in claim 12 in which said means for passing air from said cabinet through said evaporator section comprises a duct leading from adjacent to said photoconductive surface to within said evaporator section.
  • Apparatus as in claim 13 in which said means for passing air through said evaporator section comprises a blower for drawing polluted air from said cabinet adjacent to said photoconductive surface into said evaporator section and for recycling air from said evaporator section to said air stream directing means.
  • cooling unit has a housing formed with respective openings leading into said evaporator section and said condenser section and means mounting said housing in a wall of said cabinet with said evaporator section opening communicating with the interior of said cabinet and with the condenser section opening communicating with the surrounding space.
  • Apparatus as in claim 15 including means for circulating air from said surrounding space through said condenser section.
  • said means for separating said condensate into its constituents comprises a tank, means for conducting condensate from said evaporator section to said tank, said carrier liquid having a different specific gravity than water whereby said carrier liquid and water settle into levels in said tank.
  • Apparatus as in claim 18 including a normally closed valve adjacent to the bottom of said tank for draining water from said tank and means responsive to the level of water in said tank for operating said valve.
  • apparatus including a substantially closed cabinet, a member having a photoconductive surface adapted to receive a latent electrostatic image, a supplyof said liquid developer, means for applying liquid from said supply to a surface moving thereby, an air knife adjacent to said developer applying means for directing excess liquid on a surface moving thereby back to said developer applying means, means mounting said member for movement of said surface sequentially past said applying means and said air knife, a cooling unit having a housing containing an evaporator section and a condenser section and a vapor barrier between said sections, said housing having respective openings leading to said sections, means mounting said unit in a wall of said cabinet with the evaporator section opening communicating with the interior of said cabinet and with the condenser section opening communicating with the outside space, means for directing polluted air from within said cabinet into said evaporator section to produce a condensate of said carrier liquid and water

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Or Security For Electrophotography (AREA)
  • Wet Developing In Electrophotography (AREA)
  • Cleaning In Electrography (AREA)
US00260453A 1972-06-07 1972-06-07 Pollution control system for duplicator machine Expired - Lifetime US3767300A (en)

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US26045372A 1972-06-07 1972-06-07

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US (1) US3767300A (sl)
JP (1) JPS4963444A (sl)
CA (1) CA972948A (sl)
DE (1) DE2326999A1 (sl)
FR (1) FR2188207A1 (sl)
IT (1) IT986138B (sl)

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914046A (en) * 1973-07-27 1975-10-21 Minolta Camera Kk Electrophotographic copying apparatus
US4449475A (en) * 1981-03-20 1984-05-22 U.S. Philips Corporation Cleaning device for the intermediate image carrier of an electrophoretic printer
US4645327A (en) * 1983-02-23 1987-02-24 Konishiroku Photo Industry Co., Ltd. Recording apparatus having water vapor removing or preventing means
US4687319A (en) * 1986-06-18 1987-08-18 Xerox Corporation Liquid carrier reclaiming apparatus
EP0254572A1 (en) * 1986-07-25 1988-01-27 Xerox Corporation Liquid development copying machine
US4733272A (en) * 1986-07-17 1988-03-22 Xerox Corporation Filter regeneration in an electrophotographic printing machine
US4939543A (en) * 1988-09-12 1990-07-03 Xerox Corporation Ionographic ozone filtering system
US4974027A (en) * 1989-02-06 1990-11-27 Spectrum Sciences B.V. Imaging system with compactor and squeegee
US4984025A (en) * 1989-02-06 1991-01-08 Spectrum Sciences B.V. Imaging system with intermediate transfer member
US4999677A (en) * 1989-02-06 1991-03-12 Spectrum Sciences B.V. Imaging system with rigidizer
US5007179A (en) * 1989-09-21 1991-04-16 Allied-Signal Inc. Cold air lock vapor seal for process solvent vapor recovery and control
US5028964A (en) * 1989-02-06 1991-07-02 Spectrum Sciences B.V. Imaging system with rigidizer and intermediate transfer member
US5276492A (en) * 1989-08-14 1994-01-04 Spectrum Sciences B.V. Imaging method and apparatus
WO1995008139A1 (en) * 1993-09-14 1995-03-23 Delphax Systems Liquid/dry toner imaging system
US5497222A (en) * 1989-02-06 1996-03-05 Indigo N.V. Image transfer apparatus incorporating an integral heater
US5737674A (en) * 1995-11-20 1998-04-07 Minnesota Mining And Manufacturing Company Vapor control system for and a liquid electrographic system
US5745829A (en) * 1989-01-04 1998-04-28 Indigo N.V. Imaging apparatus and intermediate transfer blanket therefor
EP0969332A2 (en) * 1998-07-03 2000-01-05 Samsung Electronics Co., Ltd. Carrier recovery apparatus of liquid electrophotographic printer
US6047151A (en) * 1998-05-06 2000-04-04 Imation Corp. Drying system and method for an electrophotographic imaging system
US6297871B1 (en) * 1995-09-12 2001-10-02 Nikon Corporation Exposure apparatus
US6643485B2 (en) * 2000-09-27 2003-11-04 Kabushiki Kaisha Toshiba Electrophotographic apparatus
US20040033086A1 (en) * 2002-08-15 2004-02-19 Vejtasa David S. System and method for recycling hydrocarbon-based carrier liquid
US20070108118A1 (en) * 2005-11-14 2007-05-17 Driggers Matt G Fluid separation system
US20090035023A1 (en) * 2007-07-30 2009-02-05 Thompson John A Condensate separation
US20100058605A1 (en) * 2008-09-10 2010-03-11 Samsung Electronics Co., Ltd. Clothes dryer with water tank
US8322045B2 (en) 2002-06-13 2012-12-04 Applied Materials, Inc. Single wafer apparatus for drying semiconductor substrates using an inert gas air-knife

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5518607A (en) * 1978-07-25 1980-02-08 Ricoh Co Ltd Solvent gas removing method of wet type electrophotographic copiers
JPS5696447U (sl) * 1979-12-22 1981-07-30
DE3045485A1 (de) * 1980-12-03 1982-07-08 Hoechst Ag, 6000 Frankfurt Verfahren und vorrichtung zum thermischen fixieren von tonerbildern

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US2910137A (en) * 1958-03-26 1959-10-27 Vic Mfg Company Profit Sharing Method and apparatus for the recovery of solvent vapors
US3232029A (en) * 1960-10-14 1966-02-01 Celanese Corp Recovery of organic solvents from gaseous media
US3349221A (en) * 1964-07-17 1967-10-24 Addressograph Multigraph Storage and supply enclosures for photoelectrostatic copy sheets
US3609029A (en) * 1969-11-14 1971-09-28 Xerox Corp Materials application apparatus
US3634007A (en) * 1969-10-02 1972-01-11 Addressograph Multigraph Conditioning equipment for the copy paper supply in copying machines
US3640617A (en) * 1968-11-29 1972-02-08 Bell & Howell Co Toner doctor means
US3676937A (en) * 1970-10-22 1972-07-18 Hoyt Mfg Corp Solvent reclaimer controls
US3677632A (en) * 1970-09-10 1972-07-18 Eastman Kodak Co Environment control device for electrophotographic apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2910137A (en) * 1958-03-26 1959-10-27 Vic Mfg Company Profit Sharing Method and apparatus for the recovery of solvent vapors
US3232029A (en) * 1960-10-14 1966-02-01 Celanese Corp Recovery of organic solvents from gaseous media
US3349221A (en) * 1964-07-17 1967-10-24 Addressograph Multigraph Storage and supply enclosures for photoelectrostatic copy sheets
US3640617A (en) * 1968-11-29 1972-02-08 Bell & Howell Co Toner doctor means
US3634007A (en) * 1969-10-02 1972-01-11 Addressograph Multigraph Conditioning equipment for the copy paper supply in copying machines
US3609029A (en) * 1969-11-14 1971-09-28 Xerox Corp Materials application apparatus
US3677632A (en) * 1970-09-10 1972-07-18 Eastman Kodak Co Environment control device for electrophotographic apparatus
US3676937A (en) * 1970-10-22 1972-07-18 Hoyt Mfg Corp Solvent reclaimer controls

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3914046A (en) * 1973-07-27 1975-10-21 Minolta Camera Kk Electrophotographic copying apparatus
US4449475A (en) * 1981-03-20 1984-05-22 U.S. Philips Corporation Cleaning device for the intermediate image carrier of an electrophoretic printer
US4645327A (en) * 1983-02-23 1987-02-24 Konishiroku Photo Industry Co., Ltd. Recording apparatus having water vapor removing or preventing means
US4687319A (en) * 1986-06-18 1987-08-18 Xerox Corporation Liquid carrier reclaiming apparatus
US4733272A (en) * 1986-07-17 1988-03-22 Xerox Corporation Filter regeneration in an electrophotographic printing machine
EP0254572A1 (en) * 1986-07-25 1988-01-27 Xerox Corporation Liquid development copying machine
US4939543A (en) * 1988-09-12 1990-07-03 Xerox Corporation Ionographic ozone filtering system
US5745829A (en) * 1989-01-04 1998-04-28 Indigo N.V. Imaging apparatus and intermediate transfer blanket therefor
US4984025A (en) * 1989-02-06 1991-01-08 Spectrum Sciences B.V. Imaging system with intermediate transfer member
US4999677A (en) * 1989-02-06 1991-03-12 Spectrum Sciences B.V. Imaging system with rigidizer
US5028964A (en) * 1989-02-06 1991-07-02 Spectrum Sciences B.V. Imaging system with rigidizer and intermediate transfer member
US5497222A (en) * 1989-02-06 1996-03-05 Indigo N.V. Image transfer apparatus incorporating an integral heater
US4974027A (en) * 1989-02-06 1990-11-27 Spectrum Sciences B.V. Imaging system with compactor and squeegee
US5276492A (en) * 1989-08-14 1994-01-04 Spectrum Sciences B.V. Imaging method and apparatus
US5007179A (en) * 1989-09-21 1991-04-16 Allied-Signal Inc. Cold air lock vapor seal for process solvent vapor recovery and control
WO1995008139A1 (en) * 1993-09-14 1995-03-23 Delphax Systems Liquid/dry toner imaging system
US5414498A (en) * 1993-09-14 1995-05-09 Delphax Systems Liquid/dry toner imaging system
US6297871B1 (en) * 1995-09-12 2001-10-02 Nikon Corporation Exposure apparatus
US6437851B2 (en) 1995-09-12 2002-08-20 Nikon Corporation Exposure apparatus
US5737674A (en) * 1995-11-20 1998-04-07 Minnesota Mining And Manufacturing Company Vapor control system for and a liquid electrographic system
US6047151A (en) * 1998-05-06 2000-04-04 Imation Corp. Drying system and method for an electrophotographic imaging system
EP0969332A3 (en) * 1998-07-03 2000-08-09 Samsung Electronics Co., Ltd. Carrier recovery apparatus of liquid electrophotographic printer
EP0969332A2 (en) * 1998-07-03 2000-01-05 Samsung Electronics Co., Ltd. Carrier recovery apparatus of liquid electrophotographic printer
US6643485B2 (en) * 2000-09-27 2003-11-04 Kabushiki Kaisha Toshiba Electrophotographic apparatus
US8322045B2 (en) 2002-06-13 2012-12-04 Applied Materials, Inc. Single wafer apparatus for drying semiconductor substrates using an inert gas air-knife
US6856778B2 (en) * 2002-08-15 2005-02-15 Hewlett-Packard Development Company, L.P. System and method for recycling hydrocarbon-based carrier liquid
WO2004017145A1 (en) * 2002-08-15 2004-02-26 Hewlett Packard Development Company, L.P. System and method for recycling hydrocarbon-based carrier liquid
US20040033086A1 (en) * 2002-08-15 2004-02-19 Vejtasa David S. System and method for recycling hydrocarbon-based carrier liquid
US20070108118A1 (en) * 2005-11-14 2007-05-17 Driggers Matt G Fluid separation system
US7520393B2 (en) * 2005-11-14 2009-04-21 Hewlett-Packard Development Company, L.P. Fluid separation system
US7744767B2 (en) 2005-11-14 2010-06-29 Hewlett-Packard Development Company, L.P. Fluid separation system
US20090035023A1 (en) * 2007-07-30 2009-02-05 Thompson John A Condensate separation
US7801465B2 (en) 2007-07-30 2010-09-21 Hewlett-Packard Development Company, L.P. Condensate separation
US20100058605A1 (en) * 2008-09-10 2010-03-11 Samsung Electronics Co., Ltd. Clothes dryer with water tank
US8393090B2 (en) * 2008-09-10 2013-03-12 Samsung Electronics Co., Ltd. Clothes dryer with water tank

Also Published As

Publication number Publication date
FR2188207A1 (sl) 1974-01-18
CA972948A (en) 1975-08-19
JPS4963444A (sl) 1974-06-19
DE2326999A1 (de) 1973-12-20
IT986138B (it) 1975-01-20

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AS Assignment

Owner name: FOOTHILL CAPITAL CORPORATION, A CA. CORP., CALIFOR

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:SAVIN CORPORATION;REEL/FRAME:004831/0089

Effective date: 19880113

AS Assignment

Owner name: SAVIN CORPORATION, CONNECTICUT

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:FOOTHILL CAPITAL CORPORATION;REEL/FRAME:008113/0213

Effective date: 19951218