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Class Information
Number: 137/601.16
Name: Fluid handling > Systems > Dividing into parallel flow paths with recombining > Rotary valve
Description:










Sub-classes under this class:

Class Number Class Name Patents
137/601.17 Butterfly valve 31


Patents under this class:

Patent Number Title Of Patent Date Issued
8590569 Metering ball valve Nov. 26, 2013
8342206 Dual butterfly control valve and method of use Jan. 1, 2013
8316886 Near boiler piping apparatus with open drain Nov. 27, 2012
8281780 Regulation valve Oct. 9, 2012
7621128 Combined EGR valve and cooler by-pass Nov. 24, 2009
7293435 Hydraulic distributor for a washing machine Nov. 13, 2007
7044158 Continuous filtration systems using pump, venturi and flow control valve May. 16, 2006
6843264 Multi-phase pressure control valve for process chamber Jan. 18, 2005
6810910 Valve and arrangement for fire suppression system Nov. 2, 2004
6588442 Servo operated rotary valve with emergency bypass and method of making same Jul. 8, 2003
6302146 Valve and arrangement for fire suppression system Oct. 16, 2001
6206034 Valve with integral flow switch Mar. 27, 2001
5927326 Multi stage type flow rate switching device Jul. 27, 1999
5647389 Indexable latching handle assembly for quarter-turn rotary valves Jul. 15, 1997
5485868 Fast acting high output valve Jan. 23, 1996
5449143 Air vent control apparatus Sep. 12, 1995
5305790 Ball valve Apr. 26, 1994
5255706 High-pressure ball valve with internal pressure equalization Oct. 26, 1993
5232018 Parallel porting valve assembly Aug. 3, 1993
5103862 Valve and arrangement for fire suppression water sprinkle system Apr. 14, 1992
5095943 Flow path switching apparatus in steam trap Mar. 17, 1992
5029470 Device for measuring or metering and regulating the mass of a flow of gas Jul. 9, 1991
4971109 Valve and arrangement for fire suppression water sprinkler system Nov. 20, 1990
4947891 Fuel control device, fuel control system using the device and method of making the device Aug. 14, 1990
4915132 Gas regulator selector valve Apr. 10, 1990
4862917 Fuel control device, fuel control system using the device and method of making the device Sep. 5, 1989
4848401 Isolation chamber valve Jul. 18, 1989
4779643 Fuel control device, fuel control system using the device and method of making the device Oct. 25, 1988
4742849 Angled pneumatic connection including means for regulating a one-way flow May. 10, 1988
4628961 Multiple orifice stepper control valve Dec. 16, 1986
4624281 Control valve Nov. 25, 1986
4380250 Choke unit Apr. 19, 1983
4345622 Control and cut-off device for flowing media Aug. 24, 1982
4158369 Hold-back valve for single release air brakes Jun. 19, 1979
4123036 Fuel control system and control device therefor or the like Oct. 31, 1978
3956073 Coke oven gas and liquor collecting apparatus May. 11, 1976
3942499 Carburetor improvement system and apparatus Mar. 9, 1976











 
 
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