Valves and valve actuation – Blow-out preventers
Reexamination Certificate
2006-05-30
2006-05-30
Bastianelli, John (Department: 3751)
Valves and valve actuation
Blow-out preventers
C277S325000
Reexamination Certificate
active
07051989
ABSTRACT:
A blowout preventer which, in certain aspects, has a main body and ram block holding apparatus releasably secured to and movable with respect to the main body and/or to a door or bonnet, movable ram apparatus within the body including a ram block, the ram block holding apparatus positioned for selective engagement of and support of the ram block and for moving the ram block away from the body.
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Bennett Dean Allen
Springett Frank Benjamin
Bastianelli John
McClung Guy
Varco I/P Inc.
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