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Class Information
Number: 137/637
Name: Fluid handling > Systems > Valves with separate, correlated, actuators
Description: Subject matter in which a plurality of valves or valve groups each are provided with individual, but particularly related actuator mechanisms.










Sub-classes under this class:

Class Number Class Name Patents
137/637.2 Coaxial stems 50
137/637.05 Correlated across separable flow path joint 9
137/637.1 Interlocked 88


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8678340 Hydraulic control valve apparatus for automatic transmission Mar. 25, 2014
8671989 Drive arrangement for valve devices Mar. 18, 2014
8646481 Valve having integrated pressure assist mechanism Feb. 11, 2014
8469058 Work vehicle having hydraulic apparatus Jun. 25, 2013
8343338 Reverse osmosis water filtering system Jan. 1, 2013
8302631 Control valve for a fluid treatment system Nov. 6, 2012
8241034 Fuel selection valve assemblies Aug. 14, 2012
8162287 Valve assembly for modulating fuel flow to a gas turbine engine Apr. 24, 2012
8146547 Variable valve actuator with a pneumatic booster Apr. 3, 2012
8062612 MEMS integrated circuit comprising microfluidic diaphragm valve Nov. 22, 2011
7841362 Water control valve Nov. 30, 2010
7836915 Staggered cylinders in a valve gate apparatus Nov. 23, 2010
7762281 Storage and dispensing bin Jul. 27, 2010
7273071 Diverter valve for capacity control of a refrigerant absorption cycle driving heat source Sep. 25, 2007
6935375 Multiway valve for sanitary fixtures Aug. 30, 2005
6622743 Surge prevention device Sep. 23, 2003
6561221 Control arrangement for a working cylinder May. 13, 2003
6557586 Control handle support and valve linkage assembly May. 6, 2003
6539970 Method and apparatus for servicing a pressurized system Apr. 1, 2003
6216737 Flanged three-way universal butterfly valve Apr. 17, 2001
6202687 Matrix multiple valve system Mar. 20, 2001
6116264 Dual damper diverter Sep. 12, 2000
5992472 Pneumatic valve device for a thread-feeding machine and a thread-feeding machine Nov. 30, 1999
5791981 Actuator arrangement and system using the arrangement Aug. 11, 1998
5704398 Valve linkage system Jan. 6, 1998
5279549 Closed ventilation and suction catheter system Jan. 18, 1994
5224524 Multi-variable regulator having at least four mechanical ports and system provided with such a regulator Jul. 6, 1993
5138756 Method of converting backhoe controls Aug. 18, 1992
5035262 Device for mixing liquids Jul. 30, 1991
4994635 Push button automotive vacuum-electric air control devices having improved valving, switching and delatching Feb. 19, 1991
4925112 Fuel injection May. 15, 1990
4860779 Valve control means Aug. 29, 1989
4768396 Rotary cam assembly Sep. 6, 1988
4765371 Pressure modulator valve device Aug. 23, 1988
4760867 Pressure modulator valve device Aug. 2, 1988
4716264 Vacuum switch Dec. 29, 1987
4700885 Mixing valve for plumbing Oct. 20, 1987
4694861 Rotary pinch valve Sep. 22, 1987
4660730 Apparatus for controlling movement of valve override control handles Apr. 28, 1987
4651773 Throttle valve assembly Mar. 24, 1987
4609013 Pressure modulator valve device Sep. 2, 1986
4526204 Control apparatus for hydraulic valve Jul. 2, 1985
4518011 Control valve unit for the cylinder of a fluid actuator May. 21, 1985
4517935 Device for transmitting movement May. 21, 1985
4467833 Control valve and electrical and hydraulic control system Aug. 28, 1984
4467834 Device for controlling the mixture and flow of at least two fluids Aug. 28, 1984
4460017 Four-way valve Jul. 17, 1984
4422619 Remote valve operating system Dec. 27, 1983
4409902 Spike drivers Oct. 18, 1983
4398668 Showerhead control Aug. 16, 1983

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