Pipeline break shutoff control

Details Pipeline break shutoff control Pipeline break shutoff control

1971-10-15

1978-02-21

Weakley, Harold W.

Fluid handling

Line condition change responsive valves

Pilot or servo controlled

137460, 137487, F16K 1700

Patent

active

040746925

ABSTRACT:
A pipeline shutoff control actuated by movement of a pressure responsive element connected to the pipeline and having a predetermined restraining force applied thereto, said restraining force adapted to release said element in response to a predetermined rate of pressure drop in said pipeline whereby to actuate said control.

REFERENCES:
patent: 2836192 (1958-05-01), Shafer
patent: 2849987 (1958-09-01), Shafer
patent: 2943636 (1960-07-01), Reed
patent: 3252476 (1966-05-01), Page
patent: 3434493 (1969-03-01), Owens
patent: 3612081 (1971-10-01), Williams
patent: 3628563 (1971-12-01), Tomita

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