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Class Information
Number: 137/596
Name: Fluid handling > Systems > Supply and exhaust
Description: Device comprising a valve controlled flow line and valve controlled exhaust passage connected to the line downstream of the flow control valve, whereby the supply through the flow line may be cut off and the downstream portion of the line may be drained through the exhaust passage.










Sub-classes under this class:

Class Number Class Name Patents
137/596.1 Biased exhaust valve 110
137/596.17 Motor 407
137/596.14 Pilot-actuated 87
137/596.12 With bypass 107


Patents under this class:
1 2 3 4 5 6

Patent Number Title Of Patent Date Issued
8656953 Combination manual/pneumatic shut-off valve Feb. 25, 2014
8616415 Dispenser Dec. 31, 2013
8602055 Hydraulic valve device Dec. 10, 2013
8485223 Hydraulic control valve Jul. 16, 2013
8434519 Pressure regulator device, especially of the hydraulic remote-control type May. 7, 2013
8307849 Rotary coupler and method of using same Nov. 13, 2012
8231818 Pressure control valve assembly Jul. 31, 2012
8020583 Hydraulic valve arrangement Sep. 20, 2011
7770596 Hydraulic valve arrangement Aug. 10, 2010
7753072 Valve assemblies including at least three chambers and related methods Jul. 13, 2010
7618391 Waveform sensing and regulating fluid flow valve Nov. 17, 2009
7610928 Valve and actuator assemblies Nov. 3, 2009
7568500 Co-axial pressure relief device for air inflator Aug. 4, 2009
7484528 Valve Feb. 3, 2009
7422032 Methods and apparatus for an on-off controller Sep. 9, 2008
7392971 Infinitely variable directional valve Jul. 1, 2008
7383857 Methods and apparatus for an on-off controller Jun. 10, 2008
7243679 Adsorbent fractionator directional flow control valve assembly apparatus and method Jul. 17, 2007
7182097 Anti-saturation directional control valve composed of two or more sections with pressure selector compensators Feb. 27, 2007
7096881 Digital pressurization compound terminal Aug. 29, 2006
7073873 Dash control valve with two step function for park release Jul. 11, 2006
7069949 Four-way switching valve Jul. 4, 2006
7021332 Hydraulic valve section with reduced bore distortion Apr. 4, 2006
6997522 Dash control valve with two step function for park release Feb. 14, 2006
6948524 Pressure holding apparatus for a torque-transmitting mechanism Sep. 27, 2005
6935359 Digital pressurization compound terminal Aug. 30, 2005
6929020 Fluid pressure releasing system and method Aug. 16, 2005
6886593 Safety valve with pressure indicator May. 3, 2005
6874526 Hydraulic control device Apr. 5, 2005
6871576 Hydraulic isolation valve Mar. 29, 2005
6860291 Directional control valve comprising an internal pressure regulator Mar. 1, 2005
6840279 Pneumatic switching valve for systems for lifting and lowering the body of vehicles including air suspension Jan. 11, 2005
6823884 Method for controlling pressure Nov. 30, 2004
6742542 Multiport valve Jun. 1, 2004
6729696 Two step park release valve May. 4, 2004
6679281 Switching device for a machine Jan. 20, 2004
6615867 Spacer type pressure reducing valve Sep. 9, 2003
6532989 Hydraulic distributor Mar. 18, 2003
6513548 Control valves of a hydrostatic steering system Feb. 4, 2003
6497246 Pneumatic snap pilot Dec. 24, 2002
6481461 Hydraulic pilot control Nov. 19, 2002
6470912 Dual-spool hydraulic directional valve Oct. 29, 2002
6467753 Sealing joint and casing, especially for a stopcock actuator Oct. 22, 2002
6394032 Device for simulating static load of a connection to a rack for animal cages May. 28, 2002
6357475 Pneumatic sequential control valve Mar. 19, 2002
6354327 Automatic position-control valve assembly Mar. 12, 2002
6267141 Hydraulic directional control valve Jul. 31, 2001
6253659 Band controlled valve/actuator Jul. 3, 2001
6234201 Valve arrangement May. 22, 2001
6202685 Electrohydraulic clamping module Mar. 20, 2001

1 2 3 4 5 6










 
 
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