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Class Information
Number: 251/286
Name: Valves and valve actuation > Limit stop > Rotary valve
Description: Devices associated with a rotary valve.


Sub-classes under this class:

Class Number Class Name Patents
251/288 Stop element on actuator 221
251/287 Stop element on head 46


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
7581572 Fuel saving valve assembly Sep. 1, 2009
7571890 Valve construction and method of use Aug. 11, 2009
7562669 Check valve stop assembly and method of retention Jul. 21, 2009
7552710 Variable geometry intake manifold for an internal combustion engine Jun. 30, 2009
7404543 Slow closing actuator and valve Jul. 29, 2008
7360554 Integrated gas meter bar device and locking shut-off valve Apr. 22, 2008
7350765 Double-stop floating ball valve Apr. 1, 2008
7240691 Rotary bleed valve assembly Jul. 10, 2007
7231935 Faucet Jun. 19, 2007
7226285 Gas flowrate control device for gas burner Jun. 5, 2007
7195229 Automatic sampler Mar. 27, 2007
7152621 Integrated gas meters bar device and locking shut-off valve Dec. 26, 2006
7063302 Sample valve with integral sample shut off function for chromatograph Jun. 20, 2006
7028984 Flow control valve for gardening pipe Apr. 18, 2006
7028979 Servo assisted butterfly valve provided with a flat leaf spring and a spiral spring to establish the limp-home position Apr. 18, 2006
7000896 Reversible ball valve handle Feb. 21, 2006
6959909 Actuating handle assembly Nov. 1, 2005
6938878 Direct flow tap for dispensing drinks, provided with improved devices for stopping the operating handle Sep. 6, 2005
6916010 Regulating valve for adjusting the flow in an infusion or transfusion procedure Jul. 12, 2005
6902704 Injection pump assembly for a combinatorial reactor and related method Jun. 7, 2005
6805165 Adjustable air stream introducing device Oct. 19, 2004
6672564 Drive device Jan. 6, 2004
6638481 Plug flow cytometry for high throughput screening and drug discovery Oct. 28, 2003
6425571 Valve and method for forming valve Jul. 30, 2002
6382590 Distribution valve May. 7, 2002
6296229 Metal ball valves for gas Oct. 2, 2001
6062534 Double acting rotary valve actuator May. 16, 2000
5950982 Faucet safety stop Sep. 14, 1999
5901735 Diverter valves with integral back flow preventer and inlet and outlet check valve mechanisms May. 11, 1999
5704090 Bleed for a vacuum cleaner Jan. 6, 1998
5647389 Indexable latching handle assembly for quarter-turn rotary valves Jul. 15, 1997
5503177 Repair device for fluid distribution valves Apr. 2, 1996
5385167 Value testing device Jan. 31, 1995
5352214 Tubing clamb to control flow through compressible tubing Oct. 4, 1994
5348271 Locking device Sep. 20, 1994
5329959 Locking device Jul. 19, 1994
5323805 Valve with safety lock-out Jun. 28, 1994
5259589 Stop for rotational actuators Nov. 9, 1993
5249476 Automatic selector device for multi-gear change-speed gearbox Oct. 5, 1993
5246203 Oilfield valve Sep. 21, 1993
5139230 Travel stop assembly for valves Aug. 18, 1992
5115834 Valve-locking device May. 26, 1992
5007450 Add-on liquid overflow shut-off valve for tank Apr. 16, 1991
4815693 Valve with actuating handle operable in different quadrants Mar. 28, 1989
4794314 Environmental position actuator apparatus having load responsive limit control apparatus Dec. 27, 1988
4750707 Angle valve Jun. 14, 1988
4697607 Procedure and means for making the effect of gravity the same in flow regulators independent of the installation mode Oct. 6, 1987
4660802 Liquid flow control device Apr. 28, 1987
4595034 Three-position, four-way, short-stroke rotary valve Jun. 17, 1986
4572239 High pressure ball valve Feb. 25, 1986

1 2


 
 
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