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Class Information
Number: 137/614.14
Name: Fluid handling > Systems > Flow path with serial valves and/or closures > Common actuator > Alternately seating > Biased valve
Description: Systems in which at least one valve is biased by spring means, gravity or fluid pressure.










Patents under this class:

Patent Number Title Of Patent Date Issued
8539979 Two-stage solenoid valve for an electropneumatic valve control unit Sep. 24, 2013
8240328 Automatic fluid spill prevention and shut off safety valve Aug. 14, 2012
8181757 Adjustable damping valve with a fail-safe damping force characteristic May. 22, 2012
7905557 Brake-pressure modulator pilot unit Mar. 15, 2011
5875815 Combination pressure regulator/drain check valve Mar. 2, 1999
5499865 Brake force control device for a vehicle Mar. 19, 1996
5464189 Variable opening seal Nov. 7, 1995
5241985 Flow control valve system Sep. 7, 1993
5213132 Automatic regulating valve May. 25, 1993
5058624 Flow control valve with stable modulation Oct. 22, 1991
5035260 Line pressure regulator Jul. 30, 1991
4739793 Thermostatically operated valve Apr. 26, 1988
4611629 Thermostatically actuated valve Sep. 16, 1986
4561467 Triple gate valve assembly Dec. 31, 1985
4558819 Automatic valve closer to prevent tampering with a thermostatic controlled radiator Dec. 17, 1985
4505300 Control valve apparatus Mar. 19, 1985
4474241 Differential fill valve assembly Oct. 2, 1984
4264020 Manual dispenser for pasty material held in a reservoir under pressure Apr. 28, 1981
4236518 Cryogenic device selectively operable in a continuous freezing mode, a continuous thawing mode or a combination thereof Dec. 2, 1980
4111271 Hydraulic jarring device Sep. 5, 1978
4067355 Gas pressure regulator having high and low pressure shut-off means Jan. 10, 1978
4030517 Condensate valve assembly Jun. 21, 1977
3977426 Condensate valve assembly Aug. 31, 1976











 
 
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