Valves and valve actuation – Fluid actuated or retarded – Piston type expansible chamber reciprocating valve actuator
Patent
1981-08-28
1984-06-12
Weakley, Harold W.
Valves and valve actuation
Fluid actuated or retarded
Piston type expansible chamber reciprocating valve actuator
251166, 251298, 13751625, 137521, F16K 31143
Patent
active
044536992
ABSTRACT:
The gate and swing valve has a body which defines at least one valve seat. A closure member inside the valve is pivotably mounted on a support. A cam and cam follower operatively couple the cam to the closure member. A stem has one end coupled to the cam for moving the closure member in a linear motion, in a swinging motion, and then in a linear motion toward the valve seat.
REFERENCES:
patent: 1325303 (1919-12-01), McGill
patent: 2073727 (1937-03-01), Bodnovich
patent: 3139811 (1964-07-01), Sickel
patent: 3825221 (1974-07-01), Smith
patent: 4256283 (1981-03-01), Reneau
Hulsey Eldon E.
Mast Burton T.
Breston Michael P.
Breston Michael P.
Hulsey Joe Lance
Mast Burton T.
Weakley Harold W.
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