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Class Information
Number: 137/627.5
Name: Fluid handling > Systems > Sequentially closing and opening alternately seating flow controllers
Description: Devices wherein an actuator moves one valve from an open to a closed position after which the same actuator moves another valve from a closed to an open position.










Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
8667988 Actuating mechanism of a gas valve unit Mar. 11, 2014
8667986 Pressure-regulating valve for regulating the pressure in a high-pressure fuel accumulator of an internal combustion engine Mar. 11, 2014
8602506 Air brake locking device and system Dec. 10, 2013
8469057 Diaphragm-sealed valve having a locking mechanism Jun. 25, 2013
8434518 Control valve May. 7, 2013
8413685 Control valve Apr. 9, 2013
8380412 Control devices for a booster brake system of a vehicle and method for operating a booster brake system of a vehicle Feb. 19, 2013
8365755 Ball valve isolator Feb. 5, 2013
8172197 Fast-acting pneumatic diaphragm valve May. 8, 2012
8141585 Rocker type diaphragm valve Mar. 27, 2012
7959042 In metering valves for pressurised dispensing containers Jun. 14, 2011
7798173 Electrically controllable valve Sep. 21, 2010
7784492 Direction control valve Aug. 31, 2010
7681592 Three-way poppet valves with floating seat Mar. 23, 2010
7661609 Pressure washer with soft start washer wand Feb. 16, 2010
7568502 Coupling for a hydraulic or pneumatic assembly Aug. 4, 2009
7476209 Method and apparatus for collecting a blood component and performing a photopheresis treatment Jan. 13, 2009
7458395 Low leak poppet solenoid Dec. 2, 2008
7455075 Servo valve with miniature embedded force motor with stiffened armature Nov. 25, 2008
7438089 Hydraulic pilot control unit with oscillation damping system Oct. 21, 2008
7409811 Two stage vacuum valve for a vacuum packaging system Aug. 12, 2008
7147006 Pilot operated valve Dec. 12, 2006
7077481 Spring brake modulating relay valve Jul. 18, 2006
7059688 Electropneumatic control valve comprising a guide arrangement for a control piston Jun. 13, 2006
6997181 Personal hydration device Feb. 14, 2006
6988513 Proportional valve Jan. 24, 2006
6948525 Pilot valve comprising a valve seat arrangement Sep. 27, 2005
6935374 Pressure proportional control valve Aug. 30, 2005
6866346 Actuating device for a brake unit of an electronically controlled vehicle brake system Mar. 15, 2005
6796323 Dual seat valve Sep. 28, 2004
6792971 Pilot control valve having a pressure compensation Sep. 21, 2004
6789574 Pneumatic control assembly with simplified direction control valve Sep. 14, 2004
6789856 Vehicle parking brake lockout device Sep. 14, 2004
6742542 Multiport valve Jun. 1, 2004
6684896 Solenoid valve and method for making same Feb. 3, 2004
6637462 Variable pressure control device Oct. 28, 2003
6634382 Hydraulic control device Oct. 21, 2003
6546959 Multi-port solenoid valve and its assembly Apr. 15, 2003
6523570 Manifold for valve assembly Feb. 25, 2003
6499670 Directional control valve and valve assembly in an asphalt distributor Dec. 31, 2002
6497246 Pneumatic snap pilot Dec. 24, 2002
6478042 Valve, adapted to connect a flow module to a flow line Nov. 12, 2002
6460567 Sealed motor driven valve Oct. 8, 2002
6425409 Valve and method of making the same Jul. 30, 2002
6374857 Valve assembly Apr. 23, 2002
6364431 Electromagnetic valve and hydraulic circuit Apr. 2, 2002
6354617 Level control for a vehicle having air springs Mar. 12, 2002
6325468 EBS modulator with direct exhaust capability Dec. 4, 2001
6293309 Control valve apparatus Sep. 25, 2001
6263913 Hydraulic multiway valve Jul. 24, 2001

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