Pipe couplings

Details Pipe couplings Pipe couplings

1975-06-20

1977-08-16

Arola, Dave W.

Pipe joints or couplings

With fluid pressure seal

Flexible lip

285328, 285369, 285379, 285423, F16L 1700

Patent

active

040422631

ABSTRACT:
The specification discloses a coupling sleeve for coupling together lengths of pipe in substantially sealed relationship. The coupling sleeve has a socket portion for a pipe, and a resilient annular seal is mounted at the outer end of the socket portion for engagement by the leading end of the pipe when the latter enters the socket portion. The seal is retained in position by means of a locking ring snap-fitted over an outwardly extending abutment provided on the socket portion. To provide a seal against liquid leakage along interfaces between the seal and the end surface of the socket portion, and also between the seal and the adjacent surface of the locking ring, a narrow land portion of the seal undergoes substantial axial compression by the locking ring.

REFERENCES:
patent: 2443145 (1948-06-01), Payne
patent: 3127196 (1964-03-01), Fabian
patent: 3284112 (1966-11-01), Martin
patent: 3857589 (1974-12-01), Oostenbrink

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