Self-locking pipe coupling

Details Self-locking pipe coupling Self-locking pipe coupling

1976-03-03

1977-08-09

Arola, Dave W.

Pipe joints or couplings

With fluid pressure seal

Wedged gasket

285423, F16L 1700

Patent

active

040406512

ABSTRACT:
A self-locking pipe coupling for joinder of adjacent end segments of pipe comprises a bell at one of the adjacent ends, a spigot at the other adjacent end and a wedge-shaped seal configured to fit over the spigot and within the bell. The angle of the seal, the coefficient of friction between the seal and the bell, and the coefficient of friction between the seal and the spigot are chosen relative one another selectively in a manner to prevent disassembly of the coupling once it is assembled without destruction of the seal.

REFERENCES:
patent: 2837353 (1958-06-01), Ashbrook
patent: 3127196 (1964-03-01), Fabian et al.
patent: 3204988 (1965-09-01), Ouderkirk et al.

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