Coupling assembly

Details Coupling assembly Coupling assembly

1994-08-02

1995-12-12

Reese, Randolph A.

Pipe joints or couplings

Adjustable angle

285333, 285328, 285330, 175 74, F16L 3500

Patent

active

054743346

ABSTRACT:
The coupling assembly includes a first pipe and a second pipe connected by a middle sub splined to an outer sleeve. Each pipe includes a tubular body having a first axis and a threaded pin end with a second axis. The middle sub includes threaded boxes on each end with a center seal bore. The threaded boxes of the middle sub threadingly engage the pin ends of the first and second pipes. The threads on one pin are right-handed and the threads on the other pin are left-handed such that upon rotation of the middle sub and outer sleeve, the pins and boxes will threadingly engage upon the rotation in a common direction. The boxes and pin ends have a common axis. Each of the terminal ends of the first and second pipes include dogs which intermesh upon connection of the coupling for the transmission of The axes of the first and second pipes are at an angle with the common axis so as to cause an offset angle between the first pipe and the second pipe.

REFERENCES:
patent: 1781091 (1930-11-01), Wilson
patent: 4745982 (1988-05-01), Wenzel
patent: 4762344 (1988-08-01), Perkins et al.
patent: 4813497 (1989-03-01), Wenzel
patent: 4877092 (1989-10-01), Helm et al.
patent: 4898498 (1990-02-01), Akesaka
patent: 5269385 (1993-12-01), Sihlis
patent: 5343966 (1994-09-01), Wenzel et al.
patent: 5368111 (1994-11-01), Benoit et al.

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