Valve operator

Details Valve operator Valve operator

1978-05-12

1980-09-02

Rosenthal, Arnold

Valves and valve actuation

Mechanical movement actuator

Linkage

251130, 251331, 74520, F16K 3105

Patent

active

042203139

ABSTRACT:
The present invention provides a valve operator whereby movement of linkage arms connected to a spring loaded movable pressure plate and to a valve stem support opens and closes the valve diaphragm. A manual override clutch assembly disengages the drive means and permits manual operation of the valve.

REFERENCES:
patent: 1873405 (1932-08-01), Hodgkins
patent: 2315389 (1943-03-01), Benson et al.
patent: 2319842 (1943-05-01), Benson et al.
patent: 2344594 (1944-03-01), Bryant
patent: 2354987 (1944-08-01), Fawkes
patent: 2370604 (1945-02-01), De Craene et al.
patent: 2515498 (1950-07-01), De Craene et al.
patent: 2603102 (1952-07-01), Hobbs
patent: 2759369 (1956-08-01), Ginocchio
patent: 3515367 (1970-06-01), Ziaylek
patent: 4050670 (1977-09-01), Borg et al.

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