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Browse by Category: Main > Electrical & Energy
Class Information
Number: 250/437
Name: Radiant energy > Fluent material containment, support or transfer means > With irradiating source or radiating fluent material > Including a flowthrough transfer means > Tortuous path type
Description: Subject matter wherein the material enclosing means provides a circuitous passageway for the fluent material that bends, twists or curves.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7431848 Modular ultraviolet sterilizer Oct. 7, 2008
7420183 Apparatus and process for sterilization of liquid media by means of UV irradiation and short-time heat treatment Sep. 2, 2008
7361904 UV water purification system Apr. 22, 2008
7317193 Ultraviolet radiation water disinfecting device Jan. 8, 2008
7294839 Low volume sample cell and gas monitoring system using same Nov. 13, 2007
7226542 Fluid treatment apparatus Jun. 5, 2007
7135108 Water purifyer with extruded body having circumferentially arranged tubes Nov. 14, 2006
RE39313 Procedure and filter device for removal and/or destruction of organic substances in contaminated air Oct. 3, 2006
6972415 Fluid treatment system with UV sensor and intelligent driver Dec. 6, 2005
6932903 Ultraviolet-and-ozone disinfection apparatus having improvement on disinfection effect Aug. 23, 2005
6919019 Laser water detection, treatment and notification systems and methods Jul. 19, 2005
6897452 Apparatus for irradiating material May. 24, 2005
6881331 Assembly for purifying water Apr. 19, 2005
6781137 Fluid treatment apparatus Aug. 24, 2004
6759664 Ultraviolet curing system and bulb Jul. 6, 2004
6726839 Point-of-use water treatment system Apr. 27, 2004
6716343 Point-of-use water treatment system Apr. 6, 2004
6716345 Point-of-use water treatment system Apr. 6, 2004
6657205 Turbine-boosted ultraviolet-radiation sterilizing fluid processor Dec. 2, 2003
6613277 Air purifier Sep. 2, 2003
6547963 Structure of water tank with ultraviolet-ray sterilization lamp Apr. 15, 2003
6503447 Method for purifying gaseous effluents by means of photocatalysis, installation for carrying out said method Jan. 7, 2003
6501079 Ultraviolet-ray irradiation apparatus for sterilization of a liquid or sludgy substance Dec. 31, 2002
6497840 Ultraviolet germicidal system Dec. 24, 2002
6469308 Ultraviolet radiated water treatment tank Oct. 22, 2002
6454952 Fluid sterilization apparatus Sep. 24, 2002
6420715 Method and apparatus for improved mixing in fluids Jul. 16, 2002
6411042 Display cold spot temperature regulator Jun. 25, 2002
6312593 Ultraviolet blood irradiation chamber Nov. 6, 2001
6200466 Decontamination of water by photolytic oxidation/reduction utilizing near blackbody radiation Mar. 13, 2001
6194735 Gas sensor Feb. 27, 2001
6179969 Procedure and filter device for removal and/or destruction of organic substances in contaminated air Jan. 30, 2001
6153105 Ice-maker treatment system Nov. 28, 2000
5994705 Flow-through photo-chemical reactor Nov. 30, 1999
5952663 Apparatus for improving UV dosage applied to fluids in open channel UV disinfection systems Sep. 14, 1999
5942125 Dental unit water purifier Aug. 24, 1999
5866910 Flow-through photo-chemical reactor Feb. 2, 1999
5855850 Micromachined photoionization detector Jan. 5, 1999
5853572 Home water purification system Dec. 29, 1998
5787144 Sterilization process for medical devices Jul. 28, 1998
5770147 Apparatus for the irradiation of body fluids by ultraviolet light Jun. 23, 1998
5709799 Super ozonating water purifier Jan. 20, 1998
5696380 Flow-through photo-chemical reactor Dec. 9, 1997
5675153 UV apparatus for fluid treatment Oct. 7, 1997
5626768 Sterilization of opaque liquids with ultraviolet radiation May. 6, 1997
5614723 Apparatus for treating fluids with ultraviolet radiation Mar. 25, 1997
5601786 Air purifier Feb. 11, 1997
5547590 UV-based water decontamination system with dimmer-control Aug. 20, 1996
5393419 Ultraviolet lamp assembly for water purification Feb. 28, 1995
5366705 Gravity feed ultraviolet liquid sterilization system Nov. 22, 1994

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