F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
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)
Patent
CA 1236502
- 17 - ABSTRACT A thread form for a tubular connection of the type having a pin member (13) adapted to be made up with a box member (15) to form a pipe joint is shown. The pin member (13) has pin threads with thread crests (17) and thread roots (19) which are adapted to be made up with a mating box member (15) having a complimentary thread structure. The pin thread crests (17) are formed between a stab flank (21) and a load flank (23) of the pin thread. The pin thread has a chevron-shaped load flank (23) for engaging a mating chevron-shaped load flank (25) of the complimentary box member (15) to provide a chevron type interfit between the load bearing load flanks of the pin and box threads. The pin and box threads are also helically structured as a wedge. The chevron type interfit serves to limit the radial movement of the pin threads into the mating box member complimentary thread structure to control the radial make up of the pipe joint. (Fig. 4)
470893
Robic Robic & Associes/associates
Tubular Corporation Of America Inc.
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