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Class Information
Number: 137/630.15
Name: Fluid handling > Systems > Sequentially progressive opening or closing of plural valves > Pressure equalizing or auxiliary shunt flow > One valve seats against other valve (e.g., concentric valves) > Actuator moves both valves
Description: Systems in which a continuous motion of the actuator causes the actuator to engage and open one valve and then to engage and open a second valve.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8671988 Fluid flow control members for use with valves Mar. 18, 2014
8622088 Solenoid valves capable of controlling valve-opening area Jan. 7, 2014
8506692 Valves capable of controlling valve-opening area Aug. 13, 2013
8353310 Valves having removable internal actuation mechanisms Jan. 15, 2013
8342206 Dual butterfly control valve and method of use Jan. 1, 2013
8312896 Air valve for spray guns Nov. 20, 2012
8272532 Beverage container lid Sep. 25, 2012
8256462 Fluid flow control members for use with valves Sep. 4, 2012
8245730 Solenoid valve device Aug. 21, 2012
8113240 Low emission fluid transfer device Feb. 14, 2012
8104507 Gas switch capable of adjusting fire intensity finely Jan. 31, 2012
8020383 Steam valve and generator set Sep. 20, 2011
7967063 Air conditioning apparatus for vehicle Jun. 28, 2011
7770598 Valve having a movable venturi nozzle Aug. 10, 2010
7240694 Flow control valve for refrigeration system Jul. 10, 2007
6957661 Valve with pressurization rate reduction device Oct. 25, 2005
6745794 Flow control valve Jun. 8, 2004
6729351 Expanded range multiple-stage metering valve May. 4, 2004
6655409 Combined stop and control valve for supplying steam Dec. 2, 2003
6598623 Fuel tank pressure control valve Jul. 29, 2003
6481452 High pressure, high flow pump prime valve Nov. 19, 2002
6382585 Valve control system May. 7, 2002
6309033 Switchable orifice solenoid with plate valve for an anti-lock brake system Oct. 30, 2001
6289932 Dual port soft start valve Sep. 18, 2001
6073654 Hydraulically trippable check valve for underground mine support hydraulics Jun. 13, 2000
6058957 Water saver fire hydrant May. 9, 2000
5711583 Magnetic control valve for a slip-controlled hydraulic brake system for motor vehicles Jan. 27, 1998
5704397 Water flow control device Jan. 6, 1998
5690276 Two stage thermostatic valve device Nov. 25, 1997
5669413 Control valve having an actuating drive and method therefor Sep. 23, 1997
5618086 Brake system modulator with two-stage valve Apr. 8, 1997
5601114 Fuel tank valve assembly Feb. 11, 1997
5562117 Crashworthy solenoid actuated valve for CNG powered vehicle Oct. 8, 1996
5535725 Flow control solenoid means Jul. 16, 1996
5492150 Combination control valve, particularly suitable for thermoelectric power plant Feb. 20, 1996
5467964 Quick coupling component with pressure reduction member Nov. 21, 1995
5452738 Crashworthy solenoid actuated valve for CNG powered vehicle Sep. 26, 1995
5447175 Fuel delivery device of fuel tank Sep. 5, 1995
5439023 Shut-off valve for liquid fuel Aug. 8, 1995
5401142 Condensate discharging device Mar. 28, 1995
5388622 Automatic shutoff valve Feb. 14, 1995
5320140 Fluid valve systems Jun. 14, 1994
5301714 Multi-position valve apparatus having a return port Apr. 12, 1994
5255712 Check valve pull assembly Oct. 26, 1993
5228597 Flow valve arrangement for beverage dispenser Jul. 20, 1993
5220944 Dual blend door assembly Jun. 22, 1993
5188017 Natural gas cylinder fitting and solenoid valve Feb. 23, 1993
5186393 On-off valves and pressure regulators for high-pressure fluids Feb. 16, 1993
5174345 Drop tubes and overfill valves therefor Dec. 29, 1992
5113903 Steam converting valve with spindle actuation May. 19, 1992

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