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Browse by Category: Main > Chemistry
Class Information
Number: 55/355
Name: Gas separation > With liquid trap seal or valve
Description: Apparatus comprising means to maintain a liquid at some desired location to act as a stop, seal or closure between adjacent system parts.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8580022 Portable air purification device Nov. 12, 2013
8465573 System and method for conditioning air flow to a gas turbine Jun. 18, 2013
8206491 Apparatus for water separation in the vacuum system of a paper machine and method for utilizing the same Jun. 26, 2012
7650953 Hydrogen hybrid power electric vehicle Jan. 26, 2010
7338545 Apparatus for separating liquid from a process gas stream of an electrochemical cell stack Mar. 4, 2008
7186282 Motor-vehicle air cleaner Mar. 6, 2007
7128771 Air filter retaining system Oct. 31, 2006
6972092 Self-venting valve end cap and method Dec. 6, 2005
6881268 Method and apparatus for forming required gas atmosphere Apr. 19, 2005
6799573 Air filtration system Oct. 5, 2004
6797028 "Push-on" self attach adaptive filter Sep. 28, 2004
6776812 Gas liquid centrifugal separator Aug. 17, 2004
6676720 Filter unit for filtering gas Jan. 13, 2004
6520034 High air volume to low liquid volume aerosol collector Feb. 18, 2003
6351920 Ceiling module perimeter seal Mar. 5, 2002
6273926 Cleanroom filter unit Aug. 14, 2001
6206971 Integrated temperature controlled exhaust and cold trap assembly Mar. 27, 2001
6117202 Gasket seal for filter unit Sep. 12, 2000
6066209 Cold trap May. 23, 2000
5993311 Clean room ceiling structure Nov. 30, 1999
5961701 Moisture separator for digester gases and landfill gases and raw natural gases Oct. 5, 1999
5961702 Air replenishment unit Oct. 5, 1999
5922094 Water removal system Jul. 13, 1999
5904742 Gas filtering device for a light gas tank May. 18, 1999
5885332 Solvent receptacle and degasser for use in high pressure liquid chromatography Mar. 23, 1999
5769911 Device for the removal of liquid and solid contaminants from a gas Jun. 23, 1998
5656047 Wet gas scrubber Aug. 12, 1997
5620369 Method and device for unidirectional airflow in cleanroom Apr. 15, 1997
5540028 HEPA filter ceiling assembly with in-situ gelation of sealant Jul. 30, 1996
5417610 Method and device for reducing vortices at a cleanroom ceiling May. 23, 1995
5279090 Ceiling-frame construction method and ceiling-frame structure for clean rooms Jan. 18, 1994
5279632 Planar clean room ceiling structure Jan. 18, 1994
5217622 Process and apparatus for treatment of cemetary liquids, gases and vapors from stanch interment units Jun. 8, 1993
5114683 Thermal decomposition trap May. 19, 1992
5017199 Spent solvent recovery in circuit processing May. 21, 1991
4986050 Modular support system for a filter-type ceiling grid Jan. 22, 1991
4976757 Filtration plenum module constructed for on-site assembly Dec. 11, 1990
4963171 High efficiency filter and method of fabricating same Oct. 16, 1990
4883513 Filter cap for clean room ceiling grid system Nov. 28, 1989
4883511 Laminar flow multiplane matrix ceiling system Nov. 28, 1989
4878923 Apparatus for removing oil from a compressed gas flow Nov. 7, 1989
4860420 Method of fabricating a clean room filter bank Aug. 29, 1989
4846859 Air cleaner Jul. 11, 1989
4819549 End seal for clean room ceiling supports Apr. 11, 1989
4793338 Anti-siphoning liquid valve filter Dec. 27, 1988
4769958 Clean-room suspended ceiling Sep. 13, 1988
4765810 Testable gasket seal arrangement Aug. 23, 1988
4724749 Clean room ceiling grid system Feb. 16, 1988
4710208 Suspendable modular frame arrangement for clean room ceilings having a fluid seal Dec. 1, 1987
4684379 Air cleaner assembly Aug. 4, 1987

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