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Class Information
Number: 137/625.21
Name: Fluid handling > Systems > Multi-way valve unit > Supply and exhaust > Rotary valve
Description: Devices in which the valve unit rotates.










Sub-classes under this class:

Class Number Class Name Patents
137/625.22 Plug type 78


Patents under this class:
1 2 3 4 5

Patent Number Title Of Patent Date Issued
8602107 Downhole hydraulic control line Dec. 10, 2013
8413683 Pneumatic control valve device for air-suspended vehicles, with mechanical return of the control element Apr. 9, 2013
8191578 Rotary disc valve Jun. 5, 2012
8074684 Seat height control system Dec. 13, 2011
8047551 Multi-stage height control valve including position sensitive pilot signal and pressure boost for vehicle air springs Nov. 1, 2011
7988432 Rotary compressor for changing compression capacity Aug. 2, 2011
7921876 Rotary control valve and associated actuator control system Apr. 12, 2011
7866344 Rotary valve Jan. 11, 2011
7854602 Rotary compressor for changing compression capacity Dec. 21, 2010
7775239 Buffered rotary valve Aug. 17, 2010
7753014 Electro-hydraulic valve actuator with integral electric motor driven rotary control valve Jul. 13, 2010
7735508 Rotary slide valve Jun. 15, 2010
7717061 Gas switching mechanism for plasma processing apparatus May. 18, 2010
7699135 Integrated hydraulic control system Apr. 20, 2010
7588051 Rotary valve device Sep. 15, 2009
7578313 Rotary pilot valve Aug. 25, 2009
RE40721 Duplex strainer Jun. 9, 2009
7530801 Bi-directional disc-valve motor and improved valve-seating mechanism therefor May. 12, 2009
7520298 Rotary fluid flow valve Apr. 21, 2009
7503344 High pressure metering valve Mar. 17, 2009
7287550 Assembly consisting of a valve member and adjustment device for a vehicle servo-steering arrangement Oct. 30, 2007
7225488 Air mattress control unit Jun. 5, 2007
7222693 Hydraulic control valve and power steering apparatus using the same May. 29, 2007
7172572 Manifold system for a medical device Feb. 6, 2007
7100638 Valve for a hydraulic power steering Sep. 5, 2006
7036171 Air mattress control unit May. 2, 2006
7028705 High torque failsafe valve operator Apr. 18, 2006
6976974 Rotary manifold syringe Dec. 20, 2005
6976504 Selectable detent relief valve Dec. 20, 2005
6971408 Power steering system for motor vehicles Dec. 6, 2005
6962323 Apparatus comprising a rotary-acting pilot valve Nov. 8, 2005
6945275 Airbag valve with adjustable dead band Sep. 20, 2005
6832629 Rapid inflation and venting air valve of airbed Dec. 21, 2004
6832630 Adjustable air supply valve of air cushion bed Dec. 21, 2004
6763851 Rotary shift valve for servo-assisted steering systems of motor vehicles Jul. 20, 2004
6739848 Hydraulic motor with disc valve commutating slots complimentary in shape to port plate ports May. 25, 2004
6725881 Multi-port fluid valve and method Apr. 27, 2004
6708691 Valve and oscillator for producing a pressure waveform Mar. 23, 2004
6698046 Air mattress control unit Mar. 2, 2004
6640357 Back-to-back faucet valve structures Nov. 4, 2003
6625824 Automatically controlled system for maintaining a swimming pool Sep. 30, 2003
6447361 Balloon-shaped structure driving apparatus and discharge/suction selector valve device used for the balloon-shaped structure driving apparatus Sep. 10, 2002
6397889 Method for mounting a rotary valve for power assisted steering systems, especially for motor vehicles Jun. 4, 2002
6371347 Air switch and palm guide for papermaking machinery Apr. 16, 2002
6357479 Rotary disc valve Mar. 19, 2002
6298878 Ball cock for railway vehicle Oct. 9, 2001
6266833 Air bed structure capable of alternate aerating and lying thereon on one's side Jul. 31, 2001
6267144 Rotary disk valve for power steering systems of motor vehicles Jul. 31, 2001
6253402 Air bed structure capable of alternate lying thereon on either of one's sides Jul. 3, 2001
6250333 Servovalve Jun. 26, 2001

1 2 3 4 5










 
 
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