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Class Information
Number: 137/45
Name: Fluid handling > Control by change of position or inertia of system > By pendulum or swinging member
Description: Apparatus wherein the flow is controlled by means of a pendulum or other pivoted member swinging about its pivot in response to a change of position of the system or to the inertia of the system.










Sub-classes under this class:

Class Number Class Name Patents
137/46 With servo connection to valve 12


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8590558 Valve system for a fluid channel Nov. 26, 2013
8485210 Water scavenging system Jul. 16, 2013
8251054 Device for collecting solar energy to produce heat Aug. 28, 2012
8025073 Incline-responsive valve Sep. 27, 2011
7334596 Pendulous control valve system Feb. 26, 2008
7152615 Earthquake actuated horizontal valve with micro switch Dec. 26, 2006
6997203 System and method for distributing liquid flow into predetermined proportions Feb. 14, 2006
6904943 Articulated fuel container vent system and method Jun. 14, 2005
6860285 Liquid fuel trap Mar. 1, 2005
6701223 Method and apparatus for determining optimal control settings of a pipeline Mar. 2, 2004
6695415 Brake fluid pressure relief assembly Feb. 24, 2004
6470905 Multifunctional urgent shutoff safety valves Oct. 29, 2002
6279596 Impact responsive safety shut-off for vehicles Aug. 28, 2001
6276388 Movement detector and fluid shut-off device Aug. 21, 2001
6142167 Tanker roll shut-off vent valve assembly Nov. 7, 2000
6058959 Automatic shutoff and manual reset valve May. 9, 2000
6003197 Leak-proof container valve device Dec. 21, 1999
5975105 Seismic activated actuator Nov. 2, 1999
5762090 Over filling valve Jun. 9, 1998
5609352 Vehicle suspension system and control valve therefor Mar. 11, 1997
5482074 Safety cut-off device for piping systems and the like Jan. 9, 1996
5388606 Vibration responsive gas shut-off valve assembly Feb. 14, 1995
5388605 Vibration responsive gas shut-off valve assembly Feb. 14, 1995
5372204 Power tractor hitch relief system Dec. 13, 1994
5351706 Vibration responsive gas shut-off valve assembly Oct. 4, 1994
5325881 Seismic valve Jul. 5, 1994
5307699 Seismic initiator for earthquake shutoff valves and the like May. 3, 1994
5286053 Apparatus for preventing undesired ignition of a pyrotechnic transmission line Feb. 15, 1994
5282496 Tap for compressed or liquefied gases Feb. 1, 1994
5154442 Self-contained acceleration-responsive adaptive damper Oct. 13, 1992
5152252 Water treatment control system for a boiler Oct. 6, 1992
5106120 Vehicle suspension system Apr. 21, 1992
4960147 Vibration activated relief valve Oct. 2, 1990
4860780 Earthquake safety valve shut-off Aug. 29, 1989
4821759 Earthquake relief valve Apr. 18, 1989
4771914 Air bag triggering device Sep. 20, 1988
4756328 Fuel tank protection valve Jul. 12, 1988
4546660 Earthquake-responsive valve motor Oct. 15, 1985
4545791 Vented liquid reservoir Oct. 8, 1985
4542760 Earthquake responsive device for automatically shutting off gas or water or electricity or the like Sep. 24, 1985
4535796 Seismic actuated shut-off valve Aug. 20, 1985
4469117 Valve device for the prevention of the overfilling of portable containers, particularly gas cylinders Sep. 4, 1984
4469116 Valve device for the prevention of the overfilling of portable containers, particulary gas cylinders Sep. 4, 1984
4429704 Shock responsive rotary actuator Feb. 7, 1984
4423746 Device for venting fuel tanks Jan. 3, 1984
4353383 Seismically actuated valve release structure Oct. 12, 1982
4340368 Dental handpiece or the like Jul. 20, 1982
4331171 Earthquake shut-off valve for gas line May. 25, 1982
4314120 Shock responsive device Feb. 2, 1982
4297791 Hose water leveling instrument Nov. 3, 1981

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