Pipe joints or couplings – Particular interface – Tapered
Reexamination Certificate
2007-01-24
2010-12-14
Dunwoody, Aaron (Department: 3679)
Pipe joints or couplings
Particular interface
Tapered
C285S390000
Reexamination Certificate
active
07850211
ABSTRACT:
A wedge-threaded tubular connection includes a pin member and a box member, wherein each of the pin and box members include an engaged thread area, and a clearance gap volume formed between corresponding roots and crests of the pin and box members and arranged along an axial length of the engaged thread area according to a distribution profile. The clearance gap volume distribution profile is configured having a greater clearance gap volume proximate a central portion of the engaged thread area and progressively less clearance gap volume towards each of the distal ends of the engaged thread area.
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Reynolds, Jr. Harris A.
Tate Andrew H.
Dunwoody Aaron
Hydril Company
Osha & Liang LLP
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