Tubular connection

Details Tubular connection Tubular connection

1985-10-01

1986-12-16

Husar, Cornelius J.

Pipe joints or couplings

Particular interface

Tapered

285351, 285390, F16L 1504

Patent

active

046292241

ABSTRACT:
A tubular joint or connector of box and pin members is disclosed having two-step tapered threads. Two metal-to-metal seals of complementary engaging sealing surfaces are provided, one adjacent the end of the pin member, the other axially disposed between the two steps. Reverse angle torque shoulders at the end of the pin member and the interior termination of the box member and hooked threads further characterize the joint and box and pin members.

REFERENCES:
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patent: 4473245 (1984-09-01), Raulins et al.
patent: 4537429 (1985-08-01), Landriault
Kelly, Am. Petroleum Inst., Drilling and Production Practice of 1949-Copy Right 1950 p. 385, Figure #4.
ASME Publication, 75-Pet-34, "An Investigation of Coupled Tubing Joints for Sour Service" pp. 1-12.

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