Pipe joints or couplings – Particular interface – Tapered
Patent
1996-02-21
1999-04-20
Shackelford, Heather
Pipe joints or couplings
Particular interface
Tapered
2853342, 2853324, 285370, F16L 1504
Patent
active
058950796
ABSTRACT:
For threaded connections for oil and gas applications using tubular goods of composite materials, substantially greater make up torque can be applied, with significantly improved tensile and sealing properties, by incorporating stress-relieving conical gradient sections adjacent each end of the threaded section of the composite member. Joining each of two composite tubular members to a single double ended male member having complementary surfaces, circumferential distortion is not concentrated at the end regions of the threaded sections but is distributed, relieving stresses and allowing increased makeup torque to be applied, greatly expanding the useful parameters of fiber reinforced tubular products.
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Biro John P.
Carstensen Kenneth J.
Moore Lawrence P.
Carstensen Kenneth J.
Hooks John M.
Moore Lawrence P.
Shackelford Heather
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