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Class Information
Number: 137/43
Name: Fluid handling > Control by change of position or inertia of system > Vent opening or closing on tipping container
Description: Apparatus including means to close or open a vent opening on a container when the position of the container is varied, e.g., when the container is tipped.










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

Patent Number Title Of Patent Date Issued
4742840 Roll-over valve for motor vehicle May. 10, 1988
4739898 Closure for hot beverage container Apr. 26, 1988
4735226 Anti-lift roll-over valve Apr. 5, 1988
4716920 Roll over fuel cap Jan. 5, 1988
4702268 Gas venting valve Oct. 27, 1987
4697612 Valve arrangement for the ventilation and the venting of fuel tanks for motor vehicles Oct. 6, 1987
4696409 Vented fuel tank cap assembly Sep. 29, 1987
4694847 Roll-over valve with sealing ball Sep. 22, 1987
4685584 Vented fuel cap with bump and grade seal Aug. 11, 1987
4679581 Fuel tank vent valve Jul. 14, 1987
4679580 Vapor vent control valve Jul. 14, 1987
4666058 Off-road vehicle fuel cap May. 19, 1987
4655238 Roll-over valve Apr. 7, 1987
4646772 Fuel tank mounted roll-over valve Mar. 3, 1987
4641154 Ink jet apparatus with reservoir having a tilt valve serving as fill port and air vent Feb. 3, 1987
4593711 Pressure and vacuum relief valve mechanism for a fluid storage tank Jun. 10, 1986
4579135 Valve for preventing fuel from flowing from the vent of an automobile fuel tank Apr. 1, 1986
4570657 Tank vent valve Feb. 18, 1986
4555041 Tank valve apparatus Nov. 26, 1985
4545791 Vented liquid reservoir Oct. 8, 1985
4508131 Safety valving for cargo tanks used for bulk transportation of hazardous commodities Apr. 2, 1985
4492244 Non-spill liquid fuel tanks Jan. 8, 1985
4487215 Gas venting valve Dec. 11, 1984
4457325 Safety and venting cap for vehicle fuel tanks Jul. 3, 1984
4423746 Device for venting fuel tanks Jan. 3, 1984
4416108 Device for reducing evaporation loss from carburetors and fuel tanks Nov. 22, 1983
4390107 Fuel tank cap for motor vehicle Jun. 28, 1983
4378815 Pressure control device with a fluid discharge prevention mechanism Apr. 5, 1983
4352364 Nonspill vented closure assembly for storage battery Oct. 5, 1982
4351350 Valving assembly for a liquid-containing tank Sep. 28, 1982
4325398 Safety and venting valves for fuel tanks carried on vehicles Apr. 20, 1982
4322086 Hydraulic oil reservoir vent Mar. 30, 1982
4299247 Fuel tank vent Nov. 10, 1981
4287913 Tank suitable for holding liquids Sep. 8, 1981
4285440 Spill and spit resistant fuel cap Aug. 25, 1981
4274431 Fuel vent with gravity valve Jun. 23, 1981
4253501 Transfer system Mar. 3, 1981
4250360 Device to automatically activate or deactivate control means Feb. 10, 1981
4197870 Apparatus for ventilating liquid containers on aircraft Apr. 15, 1980
4195652 Liquid level control for a transmission sump Apr. 1, 1980
4166550 Installation for venting fuel tanks, especially for motor vehicles Sep. 4, 1979
4162021 Pressure-vacuum relief fuel tank cap with roll-over safety valve feature Jul. 24, 1979
4161069 Elongated flexible level for use as transit Jul. 17, 1979
4126151 Impact sensitive safety-relief system for tank cars Nov. 21, 1978
4114636 Bottom operable air inlet and outlet valve Sep. 19, 1978
4095609 Roll-over valve for motor vehicles Jun. 20, 1978
4064952 Device attachable to power drills for removal of material released during drilling Dec. 27, 1977
4058149 Attitude valve for a gasoline dispensing nozzle with a vapor receiving system Nov. 15, 1977
4050471 Closing apparatus for ventilation lines of fuel tanks in motor vehicles Sep. 27, 1977
4033475 Roll-over gas cap Jul. 5, 1977

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