Pipe joints or couplings – Particular interface – Tapered
Patent
1988-07-05
1989-09-12
Reese, Randolph A.
Pipe joints or couplings
Particular interface
Tapered
285 36, 285333, 403343, F16L 1500
Patent
active
048653640
ABSTRACT:
A connector for connecting two pipes has threads configured to improve making up in severe motion conditions. The connector includes a pin and a box, each having frusto-conical surfaces with helical threads formed on them. The threads have multiple starts for rapid make up. The crest of each thread is truncated and is a frusto-conical surface. This frusto-conical surface is inverted to the frusto-conical surface of the portions of the pin and box that contain threads. Each thread has a load flank and a stabbing flank. The stabbing flank inclines and joins a link flank, which in turn joins a root. The link flank inclines at a different and steeper angle than the stabbing flank.
REFERENCES:
patent: 4295751 (1981-10-01), Holmberg
patent: 4410204 (1983-10-01), Reimert
patent: 4508375 (1985-04-01), Patterson et al.
patent: 4549754 (1985-10-01), Saunders et al.
patent: 4600225 (1986-07-01), Blose
patent: 4601491 (1986-07-01), Bell, Jr. et al.
patent: 4673201 (1987-06-01), Dearden et al.
patent: 4717183 (1988-01-01), Nobileau
"Vam", British Steel Corp. Tubes Division, Vam Catalogue 850 (Haynes Cannon Ltd., Wellingsborough) 1986.COPYRGT., pp. 4,14,16.
World Oil's 1986 Tubing Tables, .COPYRGT.1986, Gulf Publishing Co., pp. 37,41,45,46,48,50,55,56,58,61.
Bradley James E.
Frechette Paul M.
Reese Randolph A.
Vetco Gray Inc.
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