Self-swaging threaded tubular connection

Details Self-swaging threaded tubular connection Self-swaging threaded tubular connection

F - Mech Eng,Light,Heat,Weapons

16

L

F16L 15/00 (2006.01) F16L 25/00 (2006.01)

Patent

CA 2091854

An Integral Self-Swaging Threaded Tubular connection to connect ends of plain-end pipe or the like without the use of a coupling is disclosed that may be selectively tightened to various positions of make-up to effect strength efficiencies up to 100 with respect to the pipe body. Tapered pin threads (62) are formed on tubular member (60) for sealing cooperation with box threads (63) formed on tubular member (61), the threads being dimensioned such that when they aye screwed together power tight, the box is swaged outwardly to a first predetermined configuration as at (90) and the pin is swaged inwardly to a second predetermined configuration as at (91) such that pin wail (92) at the last engaged pin thread and box wall (93) at the last engaged box thread are substantially the same thickness as the nominal pipe wall (94), to thereby effect a Full-strength connection.

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