Pressure sensitive valve actuator

Details Pressure sensitive valve actuator Pressure sensitive valve actuator

1982-09-24

1984-07-03

Weakley, Harold W.

Fluid handling

Line condition change responsive valves

Safety cut-off requiring reset

137463, 251 73, F16K 1700

Patent

active

044573340

ABSTRACT:
A pressure sensitive device for shutting off flow through a valve is disced. The device includes a pressure sensor having an integral atmospheric pressure reference for releasing a plunger to shut off flow through the valve. A manually operated eccentric pin and slot arrangement is provided for resetting the plunger to the open position.

REFERENCES:
patent: 2718899 (1955-09-01), Goddard
patent: 2785698 (1957-03-01), Vance
patent: 3228417 (1966-01-01), Schwerter
patent: 3709242 (1973-01-01), Chase
patent: 4276237 (1981-06-01), Barker

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