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Class Information
Number: 137/625.22
Name: Fluid handling > Systems > Multi-way valve unit > Supply and exhaust > Rotary valve > Plug type
Description: Devices in which the valve unit is a rotary plug.










Sub-classes under this class:

Class Number Class Name Patents
137/625.24 Axial and radial flow 171
137/625.23 For plural lines 179


Patents under this class:
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Patent Number Title Of Patent Date Issued
7793687 Inflation/deflation adaptor assembly for inflating and deflating inflatable cargo dunnage bags Sep. 14, 2010
7549445 Female coupling member of a pipe coupling Jun. 23, 2009
7322375 High bandwidth rotary servo valves Jan. 29, 2008
7089960 Ball valve Aug. 15, 2006
7080975 Integrated pump and ceramic valve Jul. 25, 2006
7059350 Airflow controlling mechanism Jun. 13, 2006
7040347 Air pump assembly with switching pipe May. 9, 2006
6832621 Transmitter isolation ball valve Dec. 21, 2004
6813885 Electrohydraulic setting device Nov. 9, 2004
6520203 Evacuation and inert gas introduction apparatus Feb. 18, 2003
6499507 Rotary valve Dec. 31, 2002
6446667 Ball valve structure Sep. 10, 2002
6431976 Rotary distribution chamber for selective distribution of a fluid Aug. 13, 2002
6412790 Vehicle suspension and rotary height control valve for same Jul. 2, 2002
6269838 Rotary servovalve and control system Aug. 7, 2001
6189807 Valve controlled spraying system Feb. 20, 2001
6145540 Rotary solenoid valves for vehicular applications Nov. 14, 2000
6089270 Slotted sleeve for a rotary valve Jul. 18, 2000
6050496 Rotational actuation fluid control valve for a hydraulically actuated fuel injector Apr. 18, 2000
6050497 Rotational actuation fluid control valve for a hydraulically actuated fuel injector Apr. 18, 2000
5988220 Three-way ball valve Nov. 23, 1999
5983940 Spring biased rotary air valve Nov. 16, 1999
5954093 Rotary servo valve Sep. 21, 1999
5899226 Hydraulic directional valve for servocontrols of aircraft in particular helicopters May. 4, 1999
5785074 Vented ball valve with lock-out ring Jul. 28, 1998
5771928 Rotary slide valve for selective application of pressurized air or vacuum to an apparatus Jun. 30, 1998
5738497 Apparatus and method for controlling a rotary screw compressor Apr. 14, 1998
5727443 Method of balancing a hydraulic valve for a power steering gear Mar. 17, 1998
5676432 Apparatus for controlling brake pressure applied to the wheels of automobiles using pressure fluid Oct. 14, 1997
5624165 Apparatus for controlling brake pressure applied to the wheels of automobiles using pressure fluid Apr. 29, 1997
5524525 Rotary servo valve and guidance system apparatus for controlling the same Jun. 11, 1996
5458153 Rotary valve for hydraulic power steering with reduced noise and linear boost characteristic Oct. 17, 1995
5445180 Fluid flow control Aug. 29, 1995
5439452 Limit stop valve infusion device Aug. 8, 1995
5427350 Electrically-operated control valve and water distribution system including same Jun. 27, 1995
5388606 Vibration responsive gas shut-off valve assembly Feb. 14, 1995
5388605 Vibration responsive gas shut-off valve assembly Feb. 14, 1995
5360036 Vented ball valve with lock-out ring Nov. 1, 1994
5349983 Proportional control valve for patient support system Sep. 27, 1994
5299599 Valving arrangement for a negative pressure ventilator Apr. 5, 1994
5207641 Medical rotary valve having aspiration, insufflation and an intermediate flushing positions May. 4, 1993
5165447 Fully-hydraulic steering unit Nov. 24, 1992
5148839 Valve assemblies for filling containers with pressurized gas Sep. 22, 1992
4905572 Hydraulic directional valve for an aircraft control Mar. 6, 1990
4886212 Spraying device having controlled additive fluid feed and a telescoping spray tube assembly Dec. 12, 1989
4858650 Electrohydraulic servovalve for the control of a hydraulic actuator, in particular in servomechanisms controlling the flight of aircraft Aug. 22, 1989
4806258 Straining and stop valve Feb. 21, 1989
4775365 Lipectomy cannula Oct. 4, 1988
4756479 Flush hydrant Jul. 12, 1988
4682734 Spraying device having controlled additive fluid feed and a telescoping spray tube assembly Jul. 28, 1987

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