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Class Information
Number: 137/115.09
Name: Fluid handling > Self-proportioning or correlating systems > Self-controlled branched flow systems > Bypass or relief controlled by main line fluid condition > Flow rate responsive > Choke
Description: Subject matter wherein the sensor includes a device for restricting the flow of the fluid in the main flow line.










Sub-classes under this class:

Class Number Class Name Patents
137/115.1 Variable choke resistance 30


Patents under this class:

Patent Number Title Of Patent Date Issued
8485212 Volume flow regulating valve for a hydraulic system for controlling a belt-driven conical-pulley transmission Jul. 16, 2013
8469048 Pressure feedback shuttle valve Jun. 25, 2013
6871661 Combination fitting Mar. 29, 2005
6799599 Valve Oct. 5, 2004
6581623 Auto-switching gas delivery system utilizing sub-atmospheric pressure gas supply vessels Jun. 24, 2003
6554027 Electromagnetically controlled seat valve Apr. 29, 2003
6328056 Proportional bypass valve with dual variable orifice Dec. 11, 2001
6189312 Fuel metering arrangement for a gas turbine engine Feb. 20, 2001
5908367 Flow rate control valve and continuously variable automatic transmission provided with same Jun. 1, 1999
5887612 Hydraulic pump apparatus Mar. 30, 1999
5819777 Flow control device Oct. 13, 1998
5819778 Flow control device of power steering system Oct. 13, 1998
5706849 Flow control valve Jan. 13, 1998
5609178 Pressure-actuated valve and method Mar. 11, 1997
5513672 Valve assembly May. 7, 1996
5431183 Flow regulator valve Jul. 11, 1995
5375620 Self-adjusting flow metering device Dec. 27, 1994
5368061 Load sensed variable discharge fixed displacement pump control with low unload features Nov. 29, 1994
5333454 Flow control valve unit Aug. 2, 1994
5218989 Flow control valve Jun. 15, 1993
5170626 Hydraulic flow control system for automotive vehicle Dec. 15, 1992
5014734 Quick drop valve May. 14, 1991
4921547 Proportional priority flow regulator May. 1, 1990
4887632 Flow control apparatus Dec. 19, 1989
4738330 Hydraulic drive system for use with vehicle power steering pump Apr. 19, 1988
4701111 Regulation of vane pumps Oct. 20, 1987
4598730 Flow control valve Jul. 8, 1986
4583567 Valves Apr. 22, 1986
4549566 Flow volume control device for power steering system Oct. 29, 1985
4519417 Devices for controlling flow of fluid under pressure May. 28, 1985
4505293 Fluid flow control valve Mar. 19, 1985
4495962 Fluid control valve Jan. 29, 1985
4396033 Flow volume control device for a power assisted steering device Aug. 2, 1983
4365645 Three-way flow-regulating valve Dec. 28, 1982
4361166 Flow controlling apparatus for power steering, operating fluid Nov. 30, 1982
4356835 Hydraulic control valve for selectively supplying fluid to hydraulic services Nov. 2, 1982
4355655 Hydraulic control apparatus for load independent flow regulation Oct. 26, 1982
4343324 Flow control valve Aug. 10, 1982
4327763 Dual control input flow control valve May. 4, 1982
4311161 Valve system in power steering systems Jan. 19, 1982
4231386 Differential pressure relief valve Nov. 4, 1980
4226558 Control system Oct. 7, 1980
4130127 Accumulator changing valve Dec. 19, 1978
4073140 Connecting valve for reserve pump Feb. 14, 1978
4068678 Valve for hydraulic systems Jan. 17, 1978
4056122 Fluid component recycling system in a plural component plastics molding machine Nov. 1, 1977
4000856 Fog/spray system and apparatus Jan. 4, 1977











 
 
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