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Class Information
Number: 137/869
Name: Fluid handling > Systems > With flow control means for branched passages > With common valve operator > Having fluid actuator
Description: System wherein the coordinating means includes a hydraulic or pneumatic motor.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8528598 Flow splitter Sep. 10, 2013
8347920 Pressurized fluid positioner control system Jan. 8, 2013
7845210 Fluid control device for a gas chromatograph Dec. 7, 2010
7175772 Small scale actuators and methods for their formation and use Feb. 13, 2007
6688332 Multiway valve for switching a flow of fluid under pressure with parallel disposition of valve bores, and valve assembly kit Feb. 10, 2004
6612335 3-Way control valve Sep. 2, 2003
6584767 Exhaust diverter Jul. 1, 2003
6453725 Gas chromatograph sample and column-switching valve Sep. 24, 2002
6240956 Remote controlled drinker system Jun. 5, 2001
6085791 Close-off and connecting unit for hydromassage orifices Jul. 11, 2000
5934326 Pressure regulating valve Aug. 10, 1999
5758683 On/off circuit for a hydraulic system Jun. 2, 1998
5749517 Control system for snow making devices May. 12, 1998
5718378 Control system for snow making devices Feb. 17, 1998
5709262 Electronic valve for cooling semiconductor processing equipment Jan. 20, 1998
5372424 Screw mixer, particulary for foundry molds Dec. 13, 1994
5156504 Machine tool fluid-feed assembly with distributing valve Oct. 20, 1992
5131426 Valving system for water flow to turbine engine emission system Jul. 21, 1992
5038827 Shuttle valve for a refrigeration system Aug. 13, 1991
5013235 Stack injection molding melt transfer apparatus May. 7, 1991
4957221 Air tight storage silo Sep. 18, 1990
4930401 Valve system and arrangement for on-line valve replacement Jun. 5, 1990
4858651 Control valve for construction equipment Aug. 22, 1989
4846226 Color changer Jul. 11, 1989
4828024 Diverter system and blowout preventer May. 9, 1989
4795130 Piston biasing means Jan. 3, 1989
4778083 Mixing and dispensing apparatus Oct. 18, 1988
4651369 Cellular element Mar. 24, 1987
4646373 Cellular element Mar. 3, 1987
4640308 Fluid control valve Feb. 3, 1987
4633903 Distributing control valve with hydraulic control Jan. 6, 1987
4570859 Foam dispenser for glass mat substrate Feb. 18, 1986
4566635 Fuel injection nozzle for internal combustion engines Jan. 28, 1986
4531544 Fire flap arrangement Jul. 30, 1985
4502534 Flow diverter Mar. 5, 1985
4462425 Backflushing system Jul. 31, 1984
4460017 Four-way valve Jul. 17, 1984
4456062 Flow diverter Jun. 26, 1984
4444250 Flow diverter Apr. 24, 1984
4442861 Valve for gas centrifuges Apr. 17, 1984
4436108 Valve assembly Mar. 13, 1984
4425940 Pressure control system Jan. 17, 1984
4391260 Fluid pressure responsive valve device Jul. 5, 1983
4367764 By-pass valve improvement Jan. 11, 1983
4345623 Multiport disk valve, especially for dust-remover duct systems Aug. 24, 1982
4328835 Automatic dump valve May. 11, 1982
4295490 Milking apparatus Oct. 20, 1981
4289167 Non-drip fluid delivery system Sep. 15, 1981
4269229 Solar heat system May. 26, 1981
4267972 Pneumatically operated gated irrigation system May. 19, 1981

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