Pipe coupling

Details Pipe coupling Pipe coupling

1998-05-06

2000-11-07

Arola, Dave W.

Pipe joints or couplings

With fluid pressure seal

Flexible lip

285308, 285317, 285340, 285369, F16L 1702

Patent

active

061425362

ABSTRACT:
A pipe coupling for joining a pair of pipe ends has a sleeve containing a lip seal and a pair of opposing mirror image annular support bodies each with a first end engaged with the sleeve and each extending axially away from the sleeve to a second end with a radial wall having a circular opening sized for the pipe ends at the opposite end. Each supporting body containing a clamping member adjacent the radial wall and intermediate the supporting body and outer surface of the pipe end. The clamping member pivotal between an inclined position and an upright position and biased to the upright clamping position. Pipe ends are inserted with the clamping members in the inclined position. After insertion, an extraction force on the pipe ends moves the clamping members to an upright clamping position. A circumferential band secures the first ends of the supporting bodies to the sleeve.

REFERENCES:
patent: 3645567 (1972-02-01), Reinker
patent: 4181329 (1980-01-01), Helm
patent: 4647083 (1987-03-01), Hashimoto
patent: 4717179 (1988-01-01), Haberstock et al.
patent: 4842306 (1989-06-01), Zeidler et al.
patent: 5094492 (1992-03-01), Levivier
patent: 5911446 (1999-06-01), McLennan et al.

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