Joints for tubular members

Details Joints for tubular members Joints for tubular members

F - Mech Eng,Light,Heat,Weapons

16

L

285/63

F16L 15/00 (2006.01) E21B 17/042 (2006.01) F16L 15/06 (2006.01) F16L 15/08 (2006.01)

Patent

CA 1289589

ABSTRACT The invention provides a joint between two tubes comprising a box at one end of one tube and a pin at one end of the other tube, the pin being provided on its external surface with a threadless zone at its nose serving as a stabbing guide for entry of the pin into the box, a parallel threaded load carrying zone, and an inclined threaded locking and load carrying zone; the box being provided on its inner surface with a parallel threaded load carrying zone, and an inclined threaded locking and load carrying zone, both generally matching and engageable with the corresponding zones of the pin, and an unthreaded stabbing guide zone axially disposed between said parallel load carrying zone and said inclined locking and load carrying zone of the box; the parallel load carrying zone in the box serving as an extension of the stabbing guide provided between the parallel load carrying zone and the inclined locking and load carrying zone for the nose of the pin, and the two threaded zones in the box being so separated that the parallel threaded load carrying zone engages with the corresponding threaded zone on the pin firstly on make-up of the joint.

542583

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