Quick release blowout preventer bonnet

Details Quick release blowout preventer bonnet Quick release blowout preventer bonnet

2005-01-25

2005-01-25

Bastianelli, John (Department: 3754)

Valves and valve actuation

Blow-out preventers

Radial reciprocating ram

C166S085400, C277S325000

Reexamination Certificate

active

06845959

ABSTRACT:
A bonnet lock mechanism for a blowout preventer including an angled surface disposed in the blowout preventer, a latching dog having a tapered surface disposed in the bonnet, and a lock actuator operatively coupled to the latching dog. The the lock actuator is adapted to move the latching dog such that the latching dog is in locking engagement with the angled surface of the blowout preventer.

REFERENCES:
patent: 3614111 (1971-10-01), Regan
patent: 3741296 (1973-06-01), Murman et al.
patent: 3918478 (1975-11-01), Le Rouax
patent: 4325534 (1982-04-01), Roark et al.
patent: 4456062 (1984-06-01), Roche et al.
patent: 5961094 (1999-10-01), Van Winkle
patent: 6113061 (2000-09-01), Van Winkle
patent: 6244359 (2001-06-01), Bridges et al.

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