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Class Information
Number: 137/630.19
Name: Fluid handling > Systems > Sequentially progressive opening or closing of plural valves > Lost motion
Description: Systems in which there is provided a lost motion connection between the actuating means and one or more of the valves so that a continuous motion of the actuating means causes first one and then other valves to sequentially open or close.

Sub-classes under this class:

Class Number Class Name Patents
137/630.2 Cam determines sequence 20
137/630.22 First valve actuates second valve 63
137/630.21 Rotary concentric valves 4

Patents under this class:

Patent Number Title Of Patent Date Issued
8684033 Two-shutter valve Apr. 1, 2014
8584704 Valve assembly for high-pressure fluid reservoir Nov. 19, 2013
8573255 Valve assembly for high-pressure fluid reservoir Nov. 5, 2013
7392971 Infinitely variable directional valve Jul. 1, 2008
7334600 Priming apparatus for a centrifugal pump Feb. 26, 2008
7178553 Leak-resistant solenoid valves Feb. 20, 2007
6974120 Solenoid fuel drain valve Dec. 13, 2005
6748977 Valve Jun. 15, 2004
6612338 Fuel tank pressure control valve Sep. 2, 2003
6571829 Gas control valve in water heater Jun. 3, 2003
6029705 Gas control valve Feb. 29, 2000
4794953 Torch device with oxygen and combustion gas supply Jan. 3, 1989
4759502 Spray gun with reversible air/fluid timing Jul. 26, 1988
4749036 Dual bore well treating tool Jun. 7, 1988
4729396 Fuel control valve construction, parts therefor and methods of making the same Mar. 8, 1988
4557463 Erosion resistant soft seated valve trim Dec. 10, 1985
4456032 Fluid admission valve structure Jun. 26, 1984
4454783 Diesel engine control linkage Jun. 19, 1984
4318381 Air bleed control system improvment Mar. 9, 1982
4297909 Transmission shift control linkage for controlling both speed and direction changes with one input motion Nov. 3, 1981
4266574 Vent valve May. 12, 1981
4244398 Check valve assembly having valve opening prior to passing flow and flow shut off prior to valve closing Jan. 13, 1981
4236518 Cryogenic device selectively operable in a continuous freezing mode, a continuous thawing mode or a combination thereof Dec. 2, 1980
4227548 Multiple control valve for mixing fluids Oct. 14, 1980
4162795 Sealing device for openings of a container which can be loaded with and emptied of batches of fluid loose material, viscous deposits, sludges or the like Jul. 31, 1979
4120317 Anti-lock vehicle brake systems Oct. 17, 1978
4096784 Hydraulic power system Jun. 27, 1978
4093048 Vehicle steering brake and clutch control Jun. 6, 1978
4011889 Piston valve Mar. 15, 1977
3971415 Throttle valve Jul. 27, 1976
3958597 Throttle control for remote air driven devices May. 25, 1976

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