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Class Information
Number: 137/451
Name: Fluid handling > Liquid level responsive or maintaining systems > By float controlled valve > Float arm operated valve > Flexible valve
Description: Apparatus in which the valve controlled by the float arm is made of or includes material which flexes during the closing action.










Patents under this class:

Patent Number Title Of Patent Date Issued
8580013 Air dryer cartridge and method for operating an air dryer cartridge Nov. 12, 2013
8276610 Toilet cistern inlet valve Oct. 2, 2012
8186376 Liquid purge valve May. 29, 2012
8168136 Fluid-conveying apparatus and method for conveying fluid by using the same May. 1, 2012
6962163 Dual-float snap-action flush valve Nov. 8, 2005
6192920 Chain link float valve Feb. 27, 2001
6189857 Fluid-actuated rapid closure valve Feb. 20, 2001
6182306 Side-mount toilet valve Feb. 6, 2001
6164313 Low-high flow rate valve Dec. 26, 2000
6123099 Pinch tube tank level control valve with snap-action shutoff Sep. 26, 2000
6109294 Leak-preventing toilet flush valve assembly Aug. 29, 2000
5950666 Leak-preventing toilet flush valve assembly Sep. 14, 1999
5896887 Pinch tube tank level control valve with snap-action shutoff Apr. 27, 1999
5775366 Leak-preventing toilet flush valve assembly Jul. 7, 1998
5722961 Flow control device for use with an intravenous set Mar. 3, 1998
5522179 Automatic christmas tree stand water level control system Jun. 4, 1996
5090443 Fluid level control float valve Feb. 25, 1992
5042526 Valveless toilet Aug. 27, 1991
5020567 Drainage valve having a flexible flap with an edge taper Jun. 4, 1991
4913140 Float-controlled humidifier Apr. 3, 1990
4812265 Carburetor fuel inlet valve Mar. 14, 1989
4709721 Integral base refill system ballcock assembly Dec. 1, 1987
4621945 Head control stand Nov. 11, 1986
4529002 Pilot-operated ball cock valve Jul. 16, 1985
4527584 Automatic condensation discharger Jul. 9, 1985
4509692 Drip or trickle irrigation Apr. 9, 1985
4448213 Water valve May. 15, 1984
4431025 Back flow prevention valve Feb. 14, 1984
4352371 Low-high flow rate valve Oct. 5, 1982
4318421 Float controlled syphon valve for swimming pool cover Mar. 9, 1982
4306580 Overflow return tank Dec. 22, 1981
4286618 Valve Sep. 1, 1981
4186764 Valve for controlling liquid flow Feb. 5, 1980
4122862 Extendible ballcock Oct. 31, 1978
4114642 Water closet valve assembly Sep. 19, 1978
4082106 Air eliminator valve Apr. 4, 1978
4034026 Multi-function fluid inlet valving means and reservoir means Jul. 5, 1977
3996960 Liquid level controlling valve Dec. 14, 1976
3994313 Toilet bowl valve Nov. 30, 1976
3973582 Flexible band device Aug. 10, 1976
3965925 Pinch valve Jun. 29, 1976
3945392 Disposable safety float valve Mar. 23, 1976
3939728 Double lever-fulcrum control device for controlling the opening and closing of a fluid valve Feb. 24, 1976











 
 
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