Testing mechanism for blowout preventer ram lock

Details Testing mechanism for blowout preventer ram lock Testing mechanism for blowout preventer ram lock

1979-09-24

1981-10-06

Schwadron, Martin P.

Valves and valve actuation

Blow-out preventers

92 17, 92 24, E21B 3306, F15B 1526

Patent

active

042931150

ABSTRACT:
A testing mechanism for a ram lock for blowout preventer rams which permits testing of lock mechanism by overriding the automatic unlocking capability of the mechanism.

REFERENCES:
patent: 2019163 (1935-10-01), Slater
patent: 2092530 (1937-09-01), Curtis
patent: 2251269 (1941-08-01), Curtis
patent: 3182566 (1965-05-01), Berg et al.
patent: 3208357 (1965-09-01), Allen et al.
patent: 3242826 (1966-03-01), Smith
patent: 3578783 (1971-05-01), Loustalet et al.
patent: 4052995 (1977-10-01), Ellison
patent: 4076208 (1978-02-01), Olson

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