Rising stem valve actuator

Details Rising stem valve actuator Rising stem valve actuator

1977-04-15

1978-10-17

Schwadron, Martin P.

Valves and valve actuation

Fluid actuated or retarded

Plural operations

251 58, 251229, 251252, 92 31, 74 57, F16K 31124

Patent

active

041204794

ABSTRACT:
Valve actuator for causing both rotation of a valve member and linear movement of said valve member.

REFERENCES:
patent: 2883144 (1959-04-01), Kendig
patent: 2953344 (1960-09-01), Yancey
patent: 2998805 (1961-09-01), Usab
patent: 3046802 (1962-07-01), Cupedo
patent: 3078065 (1963-02-01), Vickery
patent: 3184214 (1965-05-01), King
patent: 3207468 (1965-09-01), Lauducci et al.
patent: 3417960 (1968-12-01), Stehlin
patent: 3450382 (1969-06-01), Calim
patent: 3492880 (1970-02-01), Pearson

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