Quick pipe coupling with inflatable seal and pin retainer

Details Quick pipe coupling with inflatable seal and pin retainer Quick pipe coupling with inflatable seal and pin retainer

1991-08-22

1992-11-03

Reese, Randolph A.

Pipe joints or couplings

With fluid pressure seal

With separate, encased pipe-gripping means

285105, 285108, 285 90, 285404, 277 343, F16L 1700

Patent

active

051601753

ABSTRACT:
A quick pipe coupling a circular receiving chamber adjacent to the orifice thereof for holding a movable taper ring and an inflatable tube, an U-shaped lock pin releasably inserted therein to retain the taper ring in place, a toothed lock ring fastened in the orifice, wherein the movable taper ring is squeezed by said inflatable tube against the teeth on the toothed lock ring when the U-shaped lock pin is removed from the pipe coupling, causing the teeth on the toothed lock ring to respectively engage into the outer surface of the pipe inserted through the lock ring, the movable taper ring and the inflatable tube into the pipe coupling so that the pipe inserted therein is firmly retained in place.

REFERENCES:
patent: 922075 (1909-05-01), Bates
patent: 3843167 (1974-10-01), Gronstedt
patent: 4059295 (1977-11-01), Helm
patent: 4892144 (1990-01-01), Coone

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