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Class Information
Number: 137/448
Name: Fluid handling > Liquid level responsive or maintaining systems > By float controlled valve > Float arm operated valve > Pivoted valve
Description: Apparatus in which the valve controlled by the float arm is pivoted to swing about an axis for controlling the fluid flow.










Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
5398735 Filling regulator for liquid storage tank Mar. 21, 1995
5398722 Automatic control valve and method Mar. 21, 1995
5313979 Fountain faucet May. 24, 1994
5291620 Push button toilet flush mechanism Mar. 8, 1994
5241983 Device for automatically controlling the flow of liquid into a tank Sep. 7, 1993
5186152 Automotive fuel system Feb. 16, 1993
5168891 Float valve and utilization system Dec. 8, 1992
5163470 Overfill preventing device in underground liquid storage tank Nov. 17, 1992
5161569 Water supply device for a drinking fountain Nov. 10, 1992
5159950 Fountain faucet Nov. 3, 1992
5152315 Overfill device for a liquid storage tank Oct. 6, 1992
5141644 Buoyed flapper valve Aug. 25, 1992
5141019 Two stage automatic shutoff valve Aug. 25, 1992
5103859 Float chamber Apr. 14, 1992
5095937 Two stage automatic shut off valve Mar. 17, 1992
5031655 Self-locking vent valve Jul. 16, 1991
5020567 Drainage valve having a flexible flap with an edge taper Jun. 4, 1991
5010915 Two stage automatic shut off valve Apr. 30, 1991
RE33555 Tank overfill valve Mar. 19, 1991
4998571 Overfill valve apparatus Mar. 12, 1991
4878518 In-tank fuel reservoir with fuel vapor separation Nov. 7, 1989
4872473 Dual float valve control for regular and douglas type valve Oct. 10, 1989
4830040 Automatic swimming pool cover drainer May. 16, 1989
RE32870 Sewer relief valve Feb. 21, 1989
4796650 Structure for a float valve assembly Jan. 10, 1989
4777990 Automatic shut-off liquid dispensing nozzle Oct. 18, 1988
4750515 Liquid storage tank float valve device Jun. 14, 1988
4702271 Flow-control device Oct. 27, 1987
4678001 Pump prime maintainer Jul. 7, 1987
4667711 Tank overfill valve May. 26, 1987
4640307 Float valve Feb. 3, 1987
4628956 Float valve mechanism Dec. 16, 1986
4617802 Freezer apparatus Oct. 21, 1986
4586532 Liquid level actuator May. 6, 1986
4577657 Magnetic-pneumatic liquid level control Mar. 25, 1986
4573495 Hydrostatic ballcock assembly Mar. 4, 1986
4527584 Automatic condensation discharger Jul. 9, 1985
4524798 Safety valve for automatically stopping the flow of a fluid brought by a conduit to a reservoir Jun. 25, 1985
4503881 Automatic counterbalanced sewer valve with float closure Mar. 12, 1985
4475571 Sewer relief valve Oct. 9, 1984
4448213 Water valve May. 15, 1984
4436109 Magnetically coupled positive acting level control Mar. 13, 1984
4387733 Dual fulcrum steam trap Jun. 14, 1983
4359065 Valve Nov. 16, 1982
4301829 Flood control for a dishwasher Nov. 24, 1981
4256136 Mechanically operated level control for dishwashers Mar. 17, 1981
4254794 Valve for self-maintaining poultry waterer Mar. 10, 1981
4114641 Sewage relief valve Sep. 19, 1978
4064895 Non-siphoning float controlled valve assembly Dec. 27, 1977
4038507 Oil level regulator and shut-down device for stationary engines and compressors Jul. 26, 1977

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