Pipe joints or couplings – Frangible element
Patent
1993-12-20
1996-04-09
Arola, Dave W.
Pipe joints or couplings
Frangible element
2851371, 285292, 285331, 285908, 285910, F16L 3500
Patent
active
055054951
ABSTRACT:
A waterproof coupling between at least one tube and at least one endpiece by means of a molded portion secured to the tube and providing means that provide sealing between the tube and the endpieces, wherein said portion which is made of a material of the elastomer type or of a material having analogous properties, and that has been vulcanized or cross-linked after molding, is also secured, after vulcanization or cross-linking, to a ring or sleeve by means of which the tube is suitable for being assembled to the endpiece.
REFERENCES:
patent: 3890584 (1975-06-01), Spinner et al.
patent: 4011652 (1977-03-01), Black
patent: 4173362 (1979-11-01), Glover et al.
patent: 4650220 (1987-03-01), Grabowski
patent: 4846506 (1989-07-01), Bocson et al.
Arola Dave W.
Hutchinson
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