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Class Information
Number: 137/202
Name: Fluid handling > Diverse fluid containing pressure systems > Fluid separating traps or vents > Discriminating outlet for gas > Fluid sensing valve > Float responsive
Description: Separating traps wherein the valve is responsive to a float member.










Patents under this class:
1 2 3 4 5 6 7 8 9 10

Patent Number Title Of Patent Date Issued
4520839 Valve Jun. 4, 1985
4508550 Air flow responsive outlet from tank of vacuum cleaner Apr. 2, 1985
4489744 Liquid blocking check valve Dec. 25, 1984
4487215 Gas venting valve Dec. 11, 1984
4457325 Safety and venting cap for vehicle fuel tanks Jul. 3, 1984
4381928 Apparatus for venting and/or degassing a pipeline system May. 3, 1983
4376446 Vent valve for fuel tanks and the like Mar. 15, 1983
4342329 Breather valve Aug. 3, 1982
4336830 Vapor recovery jet pump Jun. 29, 1982
4325398 Safety and venting valves for fuel tanks carried on vehicles Apr. 20, 1982
4319602 Vacuum check bowl Mar. 16, 1982
4299248 Diaphragm valve air vent device for water systems Nov. 10, 1981
4285360 Apparatus for withdrawing the oil from an internal combustion engine Aug. 25, 1981
4276354 Steam traps or the like Jun. 30, 1981
4256109 Shut off valve for medical suction apparatus Mar. 17, 1981
4244522 Liquid storage and distribution apparatus for agricultural implements Jan. 13, 1981
4243066 Fluid flow control valves Jan. 6, 1981
4241747 Safety valve having a rupturable housing Dec. 30, 1980
4230142 Vent/vacuum breaker float valve assembly Oct. 28, 1980
4209032 Air-relief valves Jun. 24, 1980
4194893 Pumping apparatus Mar. 25, 1980
4168705 Float and check valve for hydrotherapy unit air intake Sep. 25, 1979
4166791 Sewage gas collection reservoir Sep. 4, 1979
4164955 Liquid level control valve Aug. 21, 1979
4163456 Air release valve Aug. 7, 1979
4125126 Pressure and vacuum relief valve Nov. 14, 1978
4108380 Tank spreader Aug. 22, 1978
4106524 Low actuation force fluid valve apparatus Aug. 15, 1978
4103700 Aviation fuel grade monitor Aug. 1, 1978
4104004 Air eliminator for pumps Aug. 1, 1978
4094346 Tank manifold Jun. 13, 1978
4082106 Air eliminator valve Apr. 4, 1978
4079717 Fuel injection system of internal combustion engine Mar. 21, 1978
4079743 Air bleeding device Mar. 21, 1978
4068681 Liquid proportioning device Jan. 17, 1978
4062384 Vapor recovery adapter for gasoline-dispensing nozzles Dec. 13, 1977
4056118 Syphon tube and vent valve assembly Nov. 1, 1977
4036255 Vapor recovery adapter Jul. 19, 1977
4029487 Apparatus for protecting vacuum sources including valve which alternately communicates with vacuum and atmosphere Jun. 14, 1977
4027691 Device for venting and aerating closed circulatory water flow systems Jun. 7, 1977
4011884 Liquid-level valving device particularly useful as automatic relief valve Mar. 15, 1977
4000828 Gas tank cap with roll-over valving Jan. 4, 1977
3973582 Flexible band device Aug. 10, 1976
3967633 Gas vent system for operation in any arbitrary spatial orientation Jul. 6, 1976
3960165 Fluid collection bottle with improved air flow valve means Jun. 1, 1976
3960164 Device for mixing gases with liquids Jun. 1, 1976
3958591 Quick response float valve for use in vapor return lines May. 25, 1976
3945392 Disposable safety float valve Mar. 23, 1976
3938539 Apparatus for leading off air in connection with the measuring of the flow of a liquid Feb. 17, 1976

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