Pipe coupling

Details Pipe coupling Pipe coupling

1984-08-10

1986-04-22

Callaghan, Thomas F.

Pipe joints or couplings

With assembly means or feature

Thread-cutting means

285245, 285259, F16L 3322

Patent

active

045837678

ABSTRACT:
A pipe coupling for joining hard-walled, semi-rigid pipe including a tubular portion over which the end of the pipe to be coupled may be engaged. The tubular portion has an external thread carrying a nut including an internal thread. The nut has a second tapered threaded portion adapted to cut a thread into the outside surface of the pipe and to secure the pipe to the coupling.

REFERENCES:
patent: 265218 (1882-09-01), Chadwick
patent: 578983 (1897-03-01), Green
patent: 1446489 (1923-02-01), Vivarttas
patent: 2965395 (1960-12-01), Schmohl et al.
patent: 3287033 (1966-11-01), Currie
patent: 3520562 (1970-07-01), Moos
patent: 3984130 (1976-10-01), Berger et al.

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