Pipe joints or couplings – Packed – Wedge
Patent
1980-07-01
1982-01-05
Arola, Dave W.
Pipe joints or couplings
Packed
Wedge
285342, 2853827, F16L 1906
Patent
active
043090508
ABSTRACT:
The present invention relates to improvements in pipe fittings and in particular to fittings for high pressure fluid pipes, the said fittings of the crimping ring type comprising a rigid body provided with a bore and, at one of its ends, a threaded outer part on which is screwed a rigid nut.
The part 3 forming a tight seal cooperates with the gripping part 4 which has several functions: the thin lip 4a is pushed by the seal and comes into close contact with the pipe 5 thereby producing a perfect seal anti-extrusion means, and the conical part 4d locked by tightening determines on the conical part 1d of the body a second perfect seal anti-extrusion means, the face 4e being in resting contact on the face 1b of the body and limiting the tightening of the seal; the rear part of the ring 4 produces the direct clamping of the pipe.
The invention finds an application to ensure the reliable tightness of high pressure pipes.
REFERENCES:
patent: 1851143 (1932-03-01), Wilson
patent: 2258528 (1941-10-01), Wurzburger
patent: 3498646 (1970-03-01), De Puy
patent: 3695640 (1972-10-01), Clague
patent: 3708186 (1973-01-01), Takagi
patent: 3857591 (1974-12-01), Voss
Arola Dave W.
Societe Anonyme dite: Legris
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