Actuator for a rotary valve

Details Actuator for a rotary valve Actuator for a rotary valve

1991-11-19

1992-11-24

Walton, George L.

Valves and valve actuation

Mechanical movement actuator

Plural dissimilar mechanical movements

74 182, 74 23, 74 57, 251252, 2513353, F16K 31528

Patent

active

051656574

ABSTRACT:
A hermetically-sealed actuator for a rotary valve is provided in which a first camming member is operative to move a stem axially, axial movement of the stem, in turn, producing rotation of a second rotary cam mamber that is operatively connected to rotate a valve spindle, the axially movable stem being hermetically sealed by a bellows mechanism, thus hermetically isolating the second camming member from the first camming member.

REFERENCES:
patent: 1155576 (1915-10-01), Isley
patent: 3096966 (1963-07-01), McFarland, Jr.
patent: 3399695 (1968-09-01), Stehlin
patent: 3811651 (1974-05-01), Gallagher et al.
patent: 4120479 (1978-10-01), Thompson et al.
patent: 4293117 (1981-10-01), Mueller
patent: 4350322 (1982-09-01), Mueller
patent: 4436280 (1984-03-01), Geisow
patent: 4468002 (1984-08-01), Tremblay
patent: 4586693 (1986-05-01), Tinner
patent: 4634094 (1987-01-01), Geiser
patent: 4666124 (1987-05-01), Giacobbi
patent: 5005805 (1991-04-01), Morris et al.

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