Pipe joints or couplings – Packed – Plural seals
Patent
1991-10-07
1993-01-19
Arola, Dave W.
Pipe joints or couplings
Packed
Plural seals
285369, 285921, 29450, F16L 17025
Patent
active
051801973
ABSTRACT:
An improved pipe jointing system includes sections of pipe having annular grooves about each of the ends thereof and a coupling having a rigid outer layer and an elastomeric inner layer fixedly secured thereto. The inner layer has a medial, inwardly directed lip and a pair of opposing sets of sawtooth ridges, one set disposed on each side of the lip. A pair of the pipes inserted into opposing ends of one of the couplings in end-to-end relationship compresses the respective lip therebetween forming a fluid-tight seal between the coupling and the pipes. The grooves are adapted to receive respective ones of the sawtooth ridges such that axial movement of the pipes relative to the coupling is resisted. A modified embodiment provides a pipe and coupling system whereby an elastomeric inner layer of the coupling creates sufficient frictional force to resist axially outward movement of the pipes relative to the coupling.
REFERENCES:
patent: 689045 (1901-12-01), Fruin et al.
patent: 1926197 (1933-09-01), Durr
patent: 2615741 (1952-10-01), Nathan
patent: 3266821 (1966-08-01), Safford
patent: 3682503 (1972-08-01), Bloom
patent: 4097070 (1978-06-01), Acda
patent: 4580816 (1986-04-01), Campbell et al.
patent: 4779902 (1988-10-01), Lee
patent: 4824145 (1989-04-01), Carlsson
patent: 4893848 (1990-01-01), Melcher
patent: 4969670 (1990-11-01), Bonnema et al.
patent: 4993756 (1991-02-01), Bechu
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