Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate
2007-07-24
2007-07-24
Tsay, Frank (Department: 3672)
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
C166S163000, C251S001300
Reexamination Certificate
active
11465331
ABSTRACT:
A mount for a bonnet of a blowout preventer includes at least one support member coupled to a body of the blowout preventer, and a bonnet mounting member moveably coupled to the at least one support member and adapted to move substantially normal to a face of the body of the blowout preventer, wherein the bonnet is coupled to the bonnet mounting member.
REFERENCES:
patent: 3658287 (1972-04-01), Lerouax
patent: 5897094 (1999-04-01), Brugman et al.
patent: 5975484 (1999-11-01), Brugman et al.
Berckenhoff Michael Wayne
Carbaugh William L.
Hemphill Edward Ryan
Hydril Company LP
Osha & Liang LLP
Tsay Frank
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