Threaded tubular connection

Details Threaded tubular connection Threaded tubular connection

1989-02-24

1991-05-28

Arola, Dave W.

Pipe joints or couplings

Particular interface

Tapered

285397, F16L 2500

Patent

active

050187716

ABSTRACT:
A tapered threaded tubular connection is depicted (20) that is formed and dimensioned so as to prevent cross-threading of pin 4 with box 7 when at stab position as at 54 of FIG. 5. As shown in FIG. 6, the stab depth is sufficiently great such that pin and box thread crests contact as at (47) to thereby limit angular mis-alignment to be less than the angular mis-alignment required to permit pin thread crest (55) to pass box thread crest (56) which is it did pass, would effect cross-threading of the connection.

REFERENCES:
patent: 2051499 (1936-08-01), Siegle
patent: 2196966 (1940-04-01), Hammer
patent: 2508306 (1950-05-01), Thurston et al.
patent: 2535435 (1950-12-01), Massey
patent: 4429904 (1984-02-01), Reimert
patent: 4717183 (1988-01-01), Nobileau
patent: 4796923 (1989-01-01), Liggins
patent: 4813717 (1989-03-01), Watts

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