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Class Information
Number: 137/637.2
Name: Fluid handling > Systems > Valves with separate, correlated, actuators > Coaxial stems
Description: Subject matter in which at least two independently actuable valves are provided with stem type actuators, each of which move about or along a common axis.










Sub-classes under this class:

Class Number Class Name Patents
137/637.3 Rotary 37


Patents under this class:

Patent Number Title Of Patent Date Issued
8678034 Space-saving quick acting control valve for a steam turbine Mar. 25, 2014
8596302 Multi-path valve device for fluid circulation Dec. 3, 2013
8042570 Steam valve assembly and steam turbine plant Oct. 25, 2011
7971600 Compressor throttling valve assembly Jul. 5, 2011
7836915 Staggered cylinders in a valve gate apparatus Nov. 23, 2010
7658201 Valve for sterile sampling of a liquid sample from a container Feb. 9, 2010
7650908 Valve assembly and related arrangements Jan. 26, 2010
7637282 Compressor throttling valve assembly Dec. 29, 2009
7568503 Compressor throttling valve assembly Aug. 4, 2009
6802335 Faucet handle retainer Oct. 12, 2004
6581635 Pilot-type two-port vacuum valve Jun. 24, 2003
6397892 Multi-stage unloader Jun. 4, 2002
6293300 Valve assemblies Sep. 25, 2001
6244291 Process sampling selection valves Jun. 12, 2001
6223774 Redundant regulation valve May. 1, 2001
6095193 Smooth vent valve Aug. 1, 2000
6070605 Steam turbine valve disk vibration reducer Jun. 6, 2000
5971018 Valve device for influencing an overpressurized flow of media Oct. 26, 1999
5848608 Vacuum-pressure-control slow exhaust valve Dec. 15, 1998
5469880 Manifold valve assemblies with cleaning solution supply Nov. 28, 1995
5441079 Manifold valve assemblies Aug. 15, 1995
5232023 Manifold valve assemblies Aug. 3, 1993
5172728 Three-way-valve Dec. 22, 1992
4915295 Thermostatic pressure balanced valve assembly Apr. 10, 1990
4860794 Single ended solenoid valve assembly Aug. 29, 1989
4856551 Double seat valve with two valve disks Aug. 15, 1989
4715795 Metering pump Dec. 29, 1987
4590969 Valve May. 27, 1986
4585208 Valve, particularly a thermostatic valve for hot water radiators Apr. 29, 1986
4558717 Steering control valve system for crawler vehicle Dec. 17, 1985
4552167 Method of and device for cleaning hollow spaces in double seat valves Nov. 12, 1985
4537221 Hydraulic control devices for use with mining apparatus Aug. 27, 1985
4530377 Block valve Jul. 23, 1985
4522223 Double poppet valve Jun. 11, 1985
4490836 Shut-off valve Dec. 25, 1984
4483360 Actuator mechanism for double-block and vent valve Nov. 20, 1984
4368753 Double-seat valve unit leakage control Jan. 18, 1983
4345623 Multiport disk valve, especially for dust-remover duct systems Aug. 24, 1982
4310027 Hydraulic control devices for use with mining apparatus Jan. 12, 1982
4304251 Double seat valve with leak control Dec. 8, 1981
4303195 Thermally responsive valve device Dec. 1, 1981
4276907 Fluid actuated valve Jul. 7, 1981
4182485 Thermally responsive valve Jan. 8, 1980
4085766 Adjustable gas mixing valve Apr. 25, 1978
4061160 Control valve Dec. 6, 1977
4041979 Control valve having independently driven valves Aug. 16, 1977
4024892 Valve for use in a nut installation tool May. 24, 1977
3985156 Gas and liquid flow control valve Oct. 12, 1976
3970110 Safety inlet air valve control arrangement for air powered hand held tool Jul. 20, 1976
3958599 Remote sensing regulator and shutoff valve for valve manifolds May. 25, 1976











 
 
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