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Class Information
Number: 137/197
Name: Fluid handling > Diverse fluid containing pressure systems > Fluid separating traps or vents > Discriminating outlet for gas
Description: Separating traps wherein the trap is provided with an outlet through which outflow of a gas is permitted but outflow of a liquid or diverse gas therethrough is prevented.

Sub-classes under this class:

Class Number Class Name Patents
137/199 Fluid sensing valve 56
137/198 With reverse flow stop or pressure regulating valve 22

Patents under this class:
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Patent Number Title Of Patent Date Issued
8550106 Pressure-relief valve of a housing for an electrical/electronic unit Oct. 8, 2013
8485143 Valve arrangement for venting a coolant circuit of an internal combustion engine Jul. 16, 2013
8485214 Small engine emissions control valve Jul. 16, 2013
8439065 Automotive air bleed valve for a closed hydraulic system May. 14, 2013
8430114 Hydrophobic vent assembly Apr. 30, 2013
8418712 Air discharge implement for a portable pressurized sprayer Apr. 16, 2013
8360091 Ventilation for a reducing agent tank Jan. 29, 2013
8272398 Liquid discriminating vent valve Sep. 25, 2012
8122903 Close-coupled purgeable vaporizer valve Feb. 28, 2012
8113227 Fuel cartridge with flexible liner Feb. 14, 2012
8109284 Bubble trap assembly for critical bioprocess applications Feb. 7, 2012
8104497 Microfabricated elastomeric valve and pump systems Jan. 31, 2012
7762273 Venting device Jul. 27, 2010
7637990 Air vent apparatus for water tube Dec. 29, 2009
7604020 Breather assembly Oct. 20, 2009
7517392 Breather system and method of using the same Apr. 14, 2009
7178512 Fuel system for a marine vessel with a gaseous purge fuel container Feb. 20, 2007
7059341 Discharge ducts for pumping water from a supply reservoir to a delivery reservoir Jun. 13, 2006
6960321 Sterilization of fire sprinkler systems Nov. 1, 2005
6834642 Fuel vapor processing apparatus Dec. 28, 2004
6827097 Water cooler drip tray drainage apparatus Dec. 7, 2004
6755255 Method and apparatus for providing a portable flow line and measuring unit for an oil and/or gas well Jun. 29, 2004
6488894 Device for sequential discharge of flowable reagents Dec. 3, 2002
6453925 Solution feeding apparatus and solution feeding method Sep. 24, 2002
6341615 Self-cleaning vacuum purge system Jan. 29, 2002
6318401 Air valve assembly for hydraulic jack Nov. 20, 2001
6284549 Reagent tube venting system and method Sep. 4, 2001
6244289 Vent system Jun. 12, 2001
6095178 System for monitoring and controlling the level of a liquid in a closed container Aug. 1, 2000
6047686 Safety device for preventing fuel discharge Apr. 11, 2000
6026842 Float activated shutoff valve Feb. 22, 2000
5413137 Fuel vapor vent assembly with liquid trap May. 9, 1995
5385034 Vapor compression systems Jan. 31, 1995
5377872 Indicator valve for a fire extinguisher Jan. 3, 1995
5263459 Fuel delivery with self-priming fuel pump Nov. 23, 1993
5215312 Housing with a pressure-equalizing element which is retained water-tightly around the edges within a housing wall opening Jun. 1, 1993
5094049 Blister vent Mar. 10, 1992
4905901 Injection molding nozzle Mar. 6, 1990
4794942 Air breather plug assembly for use in power transmission unit Jan. 3, 1989
4757654 Blister pressure relief valve Jul. 19, 1988
4736083 Microwave heating digestion vessel Apr. 5, 1988
4655754 Vacuum wound drainage system and lipids baffle therefor Apr. 7, 1987
4624286 Degasifying valve for containers Nov. 25, 1986
4560324 Automatic purger for a hydraulically controlled double diaphragm pump Dec. 24, 1985
4467827 Venting and degasifying valve for a liquid-filled system Aug. 28, 1984
T103603 Process and apparatus for preparing silver halide emulsions Nov. 1, 1983
4388047 Solenoid-operated pump Jun. 14, 1983
4359204 Rod operated valve Nov. 16, 1982
4352364 Nonspill vented closure assembly for storage battery Oct. 5, 1982
4314658 Viscous product dispensing squeeze bottle having a self-venting automatic shut-off valve Feb. 9, 1982

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