Valves and valve actuation – Fluid actuated or retarded – With mechanical movement between actuator and valve
Patent
1987-04-20
1987-12-01
Walton, George L.
Valves and valve actuation
Fluid actuated or retarded
With mechanical movement between actuator and valve
251 636, 251144, 251327, 251329, 251 635, 137 75, 137315, F16K 31124
Patent
active
047099011
ABSTRACT:
A remotely controllable fluid pressure actuated mechanism for controlling the actuation of a sliding gate valve or the like, for use with tank trucks, pipelines, storage tanks or the like, for helping to eliminate the possibility of hazardous spills. The mechanism is adapted for mounting on the bonnet of a generally conventional sliding gate valve, and comprises spaced, relatively movable upper and lower (when the gate valve is oriented vertically) supports connected by constant force springs, and wherein the upper support is attached to the operating rod of the gate valve for actuating the gate valve upon upward movement of the upper support against the resistance of the constant force springs, and relative to the lower support, and with there being provided remotely controllable, reciprocal, fluid powered motor units extending between the upper and lower supports and when actuated from a source of pressurized fluid, being adapted to move the upper support away from the lower support, to thus cause actuation of the gate valve. Bypassing the pump of the system or dumping the pressurized fluid in the system causes automatic closing of the gate valve as initiated by the constant force springs.
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Jones William G.
Mooney Thomas E.
Pierson Karl B.
Betts Industries, Inc.
Walton George L.
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