Switching device

Details Switching device Switching device

1975-01-20

1976-08-31

Wayner, William E.

Valves and valve actuation

Electrically actuated valve

Remote or follow-up control system for electrical actuator

62209, 200 814, H01H 3526

Patent

active

039776506

ABSTRACT:
A switching device responsive to pressure at two inputs with pressure responsive members each of which moves an actuating member in response to pressure variations. First and second electrical switches are positioned to be operated by the respective actuating members and a third switch is mounted for movement with one of the members and actuated by the other member. Springs apply appropriate forces to the member and are adjustable as to applied force.

REFERENCES:
patent: 2183775 (1939-12-01), Pike
patent: 2244783 (1941-06-01), Judson et al.
patent: 3182149 (1965-05-01), Noakes

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