Wells – Processes – Operating valve – closure – or changeable restrictor in a well
Reexamination Certificate
2006-10-17
2006-10-17
Tsay, Frank S. (Department: 3672)
Wells
Processes
Operating valve, closure, or changeable restrictor in a well
C166S085400, C251S001300
Reexamination Certificate
active
07121348
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 blowout preventer, wherein the bonnet is coupled to the bonnet mounting member.
REFERENCES:
patent: 3658287 (1972-04-01), Lerouax
patent: 4253638 (1981-03-01), Troxell, Jr.
patent: 5575452 (1996-11-01), Whitby et al.
patent: 5655745 (1997-08-01), Morrill
patent: 5975484 (1999-11-01), Brugman et al.
patent: 6601650 (2003-08-01), Sundararajan
Berckenhoff Michael Wayne
Carbaugh William L.
Hemphill Edward Ryan
Hydril Company LP
Osha & Liang LLP
Tsay Frank S.
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