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Class Information
Number: 137/625.25
Name: Fluid handling > Systems > Multi-way valve unit > Supply and exhaust > Reciprocating valve
Description: Devices wherein the valve unit reciprocates rectilinearly.










Sub-classes under this class:

Class Number Class Name Patents
137/625.26 Combined disk or plug and gate or piston 57
137/625.67 Piston valve 38
137/625.27 Plural disk or plug 158


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8667983 Relief valve for oil pump Mar. 11, 2014
8651141 Electromagnetic valve and relative assembly method Feb. 18, 2014
8613425 Valve seal member and valve Dec. 24, 2013
8573249 Relief valve for oil pump Nov. 5, 2013
8550116 Twin power valve with integrated pressure balance Oct. 8, 2013
8490654 Electromagnetic actuating unit Jul. 23, 2013
8322370 Hydraulic system with a pressure reducing valve Dec. 4, 2012
8316885 Fluid supply system, especially for delivering liquid hydrocarbon to a fuel-operated vehicle heater or to a reformer Nov. 27, 2012
8256738 Double action directional fluid flow valve Sep. 4, 2012
8251098 Slide vane for hydraulic power steering Aug. 28, 2012
8251189 Railway brake cylinder Aug. 28, 2012
8231818 Pressure control valve assembly Jul. 31, 2012
8151824 Balanced solenoid valve Apr. 10, 2012
8118112 Rock breaking device, protection valve and a method of operating a rock breaking device Feb. 21, 2012
8113482 Microvalve device with improved fluid routing Feb. 14, 2012
8006718 Electric spool valve Aug. 30, 2011
7886767 Hydraulic valve with spool position sensing assembly Feb. 15, 2011
7845620 Outfeed gate with wear strip assembly Dec. 7, 2010
7766042 Direct operated cartridge valve assembly Aug. 3, 2010
7409967 Pattern former for wrapped bakery products and method for loading and unloading bakery products Aug. 12, 2008
7380570 Three-way valve for use with paintball markers Jun. 3, 2008
7363942 Continuous automatic control and distributor valve, with a magnetic seal Apr. 29, 2008
7350540 Methods and apparatus for a direct connect on-off controller Apr. 1, 2008
7347220 Methods and apparatus for a direct connect on-off controller Mar. 25, 2008
7306462 Gas operating system for firearm simulators Dec. 11, 2007
7290564 Solenoid valve Nov. 6, 2007
7267404 Arrangement for controlling a fluid volume in shape changing elements of seats Sep. 11, 2007
7258138 Methods and apparatus for an on-off controller Aug. 21, 2007
7255122 Enhanced exhaust flow control feature Aug. 14, 2007
7243493 Valve gradually communicating a pressure signal Jul. 17, 2007
7210499 Methods and apparatus for a direct connect on-off controller May. 1, 2007
7204473 Solenoid valve Apr. 17, 2007
6981517 Gas supply system, valve assembly and method of forming reactant pulses by operating a valve assembly Jan. 3, 2006
6901961 Double diaphragm pump having a spool valve Jun. 7, 2005
6880800 Pressure regulator Apr. 19, 2005
6814104 Hydraulic control valve, system and methods Nov. 9, 2004
6782910 Multi-function hydraulic valve assembly Aug. 31, 2004
6777840 Valve actuator for water heating/cooling and sanitary systems Aug. 17, 2004
6694998 Micromachined structure usable in pressure regulating microvalve and proportional microvalve Feb. 24, 2004
6550416 Pneumatic valve device Apr. 22, 2003
6315952 Plug flow cytometry for high throughput screening and drug discovery Nov. 13, 2001
6254057 Valve control system Jul. 3, 2001
6129072 Hydraulically actuated device having a ball valve member Oct. 10, 2000
6119727 Pneumatic seat valve having a rapid exhaust mode Sep. 19, 2000
6116278 Lockout valve Sep. 12, 2000
6065495 Two-position, three-way solenoid-actuated valve May. 23, 2000
6053222 Dunnage bag deflation tool Apr. 25, 2000
5836566 Connector mechanism for a valve spool and a diaphragm Nov. 17, 1998
5779452 Positive displacement pump or motor utilizing a reciprocal sliding member to operate the suction and discharge ports Jul. 14, 1998
5573034 Center position biased slide air valve Nov. 12, 1996

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