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Class Information
Number: 55/417
Name: Gas separation > With separated gas outflow control (e.g., apertured conduit) > Valve
Description: Apparatus having a valve to vary gas flow to control the quantity of separated gas flowing through or out of the apparatus.

Patents under this class:
1 2 3 4

Patent Number Title Of Patent Date Issued
6932858 Vortex tube system and method for processing natural gas Aug. 23, 2005
6887290 Debris separation and filtration systems May. 3, 2005
6878177 Incubator having combined HEPA and VOC filter Apr. 12, 2005
6860915 Oil separating device for crankcase gases of an internal combustion engine Mar. 1, 2005
6827753 Gas/liquid separation system Dec. 7, 2004
6811586 Oil separating device for crankshaft gases of an internal combustion engine Nov. 2, 2004
6797037 Dehydrating breather apparatus and method Sep. 28, 2004
6764536 Sampling device with liquid eliminator Jul. 20, 2004
6736881 Method and arrangement for cleaning pipe-shaped filter elements May. 18, 2004
6709478 Engine crank case sampling system Mar. 23, 2004
6655335 Small engine for power tools Dec. 2, 2003
6623631 Filter assembly for vacuum filtration Sep. 23, 2003
6613116 Grill assembly of cyclone dust collecting apparatus for vacuum cleaner Sep. 2, 2003
6572688 Gas purification unit Jun. 3, 2003
6572924 Exhaust system for vapor deposition reactor and method of using the same Jun. 3, 2003
6557591 Bulk gas built-in purifier with dual valve bulk container May. 6, 2003
6547862 Rotary phase separator with integral accumulator and outlet valve Apr. 15, 2003
6517596 Wet pickup attachment for vacuum cleaners Feb. 11, 2003
6444002 Nail salon air purification system Sep. 3, 2002
6395050 Vent filter with direct sample capability May. 28, 2002
6372025 Particulate control systems incorporating electrostatic precipitators Apr. 16, 2002
6346130 Filter apparatus for canister Feb. 12, 2002
6328775 Protection system against the penetration of contaminated air and blast waves into a protective space Dec. 11, 2001
6309436 Device for separating liquid particles from a gas stream Oct. 30, 2001
6251169 Method for vacuum/reduced-pressure refining and facility for vacuum/reduced-pressure refining Jun. 26, 2001
6251152 Vacuum receiver for separating particles in a gas flow having an inlet housing insertable and removable from an opening in a cover of the vacuum receiver Jun. 26, 2001
6183526 Filter apparatus for canister Feb. 6, 2001
6149718 Contamination control system Nov. 21, 2000
6013121 Filter change indicator Jan. 11, 2000
5997616 Moisture absorption device for electrical apparatus containing dielectric gas Dec. 7, 1999
5980599 In-tank purifier with bypass for filling Nov. 9, 1999
5958108 High volume air-water separator Sep. 28, 1999
5951746 Suction device for cleaning purposes Sep. 14, 1999
5904742 Gas filtering device for a light gas tank May. 18, 1999
5899435 Molded rubber valve seal for use in predetermined type valves, such as, a check valve in a regenerative desiccant air dryer May. 4, 1999
5888277 Automatic disinfecting means for smoky gas in conduit or closed space Mar. 30, 1999
5868807 Apparatus for removing dust from gas and for cleaning at least one filter of the apparatus Feb. 9, 1999
5862737 Filter change indicator Jan. 26, 1999
5858034 Dust filter unit for canisters Jan. 12, 1999
5827339 Apparatus for generating chemical-free dry air Oct. 27, 1998
5824135 High volume air-water separator Oct. 20, 1998
5807427 Gas/liquid separator with controllable variable liquid level Sep. 15, 1998
5800579 Pressure balanced cyclone separator Sep. 1, 1998
5776217 Vacuum receiver Jul. 7, 1998
5738706 Smoke filtration unit and method of using same Apr. 14, 1998
5707431 Vortex gas elimination device Jan. 13, 1998
5695534 Air filtration installation with recycling of filtered air Dec. 9, 1997
5693125 Liquid-gas separator Dec. 2, 1997
5665128 Clean air cabinet with valved exhaust Sep. 9, 1997
5558688 Block filter-purifier Sep. 24, 1996

1 2 3 4

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