F - Mech Eng,Light,Heat,Weapons – 16 – K
Patent
F - Mech Eng,Light,Heat,Weapons
16
K
F16K 41/00 (2006.01) F16K 47/00 (2006.01)
Patent
CA 2090900
A snubber which may be used with a diaphragm actuator or other movable member to prevent sudden movement of the movable member is provided. A typical diaphragm actuator has a diaphragm housing with a movable diaphragm therein dividing the diaphragm housing into two separate chambers. An actuator stem is connected to the diaphragm to move with the diaphragm. The snubber has a housing with an open interior space communicating through a communication path with a first one of the actuator chambers. A first piston is reciprocably movable within the snubber housing, the first piston being operably connected to the actuator stem to move therewith. The first piston divides the snubber housing space into two chambers, one on each side of the first piston. A passage is provided which leads from one of the snubber chambers to the other. A floating piston positioned in the communication path between the first piston and the first actuator chamber. Thus, as the first piston reciprocates within the snubber space, the floating piston moves in an opposite direction to accommodate the changing volume within the snubber space occasioned by the movement of the first piston into and out of the snubber space.
Deeth Williams Wall Llp
Orbit Valve Company
LandOfFree
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