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Class Information
Number: 137/865
Name: Fluid handling > Systems > With flow control means for branched passages > With common valve operator > With gearing
Description: Systems wherein the means to coordinate the actuation of the flow control means includes relatively movable toothed members which transmit motion to the flow control means by meshing of the teeth during travel of the members.

Patents under this class:

Patent Number Title Of Patent Date Issued
8684033 Two-shutter valve Apr. 1, 2014
8602506 Air brake locking device and system Dec. 10, 2013
8479770 4-way valve system Jul. 9, 2013
8113268 Sequential valve member driving mechanism for an HVAC system Feb. 14, 2012
7658671 Air distribution assembly for vehicles Feb. 9, 2010
7517278 Mode mechanization system with integrated heater outlet Apr. 14, 2009
6990992 Damper device Jan. 31, 2006
6871576 Hydraulic isolation valve Mar. 29, 2005
6776240 Downhole valve Aug. 17, 2004
5845677 Dual throttle valve Dec. 8, 1998
5730507 Cable extension for brake lock Mar. 24, 1998
5462086 Selector relief valve assembly Oct. 31, 1995
5421358 Fluid valve mechanism and valving method Jun. 6, 1995
5344221 Anti-theft method and apparatus for locking the brakes of a vehicle Sep. 6, 1994
5309934 Balanced piston fluid valve May. 10, 1994
5307838 Rotary valve assembly May. 3, 1994
5291911 Conical variable area throttling device Mar. 8, 1994
5007456 Closing arrangement for ducts having large cross-sectional areas, particularly flue gas ducts Apr. 16, 1991
4889317 Proportional flow control valve Dec. 26, 1989
4778083 Mixing and dispensing apparatus Oct. 18, 1988
4749004 Airflow control valve having single inlet and multiple outlets Jun. 7, 1988
4685156 Adjustable water temperature safety control unit Aug. 11, 1987
4664356 Control valve May. 12, 1987
4633903 Distributing control valve with hydraulic control Jan. 6, 1987
4543984 Truck trailer brake airline lock Oct. 1, 1985
4437461 Valve respirator device Mar. 20, 1984
4388766 Humidity-controlled diverter valve Jun. 21, 1983
4312381 Air flow damping system Jan. 26, 1982
4196752 Group valve for two separate liquid supply lines Apr. 8, 1980

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