Grooved coupling protector

Details Grooved coupling protector Grooved coupling protector

1982-06-21

1984-02-21

Bryant, III, James E.

Pipes and tubular conduits

End protectors

Threaded

138 89, 2853323, 285333, B65D 5900, F16L 5700

Patent

active

044323948

ABSTRACT:
A System for protecting the threaded cavities and the seal ring in a grooved A.P.I. coupling comprises first and second threaded portions separated by a substantially smooth portion, the second threaded portion being dimensioned so that it will freely pass through the space defined the seal ring when inserted into the threaded cavity during installation yet, due to the taper of the A.P.I. coupling, will engage a predetermined portion of threads therein below the seal ring to effect secure threaded engagement, the smooth portion being closely fitted against the seal ring to protect same.

REFERENCES:
patent: 497990 (1893-05-01), Simrell
patent: 1640969 (1927-09-01), Westerman
patent: 1675143 (1928-10-01), Shrum
patent: 2587544 (1952-02-01), Sneddon
patent: 2893437 (1959-07-01), Pickard
patent: 2980451 (1961-04-01), Taylor et al.
patent: 3285289 (1966-11-01), Titus
patent: 4119121 (1978-10-01), Smiley

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