Fluid coupling

Details Fluid coupling Fluid coupling

1988-11-08

1989-10-24

Callaghan, Thomas F.

Pipe joints or couplings

Nonmetal to metal

Internal member

285250, 285362, 285903, F16L 3326

Patent

active

048757209

ABSTRACT:
A fluid coupling for a corrugated pipe, comprising a coupling body having a large-diameter portion and a small-diameter portion through which the corrugated pipe can be passed, metallic seal means arranged at the small-diameter portion, for sealing an end portion of a corrugated pipe pressed against the same, a ring-shaped engaging member disposed in the large-diameter portion and having its inside diameter reducible to a size smaller than the diameter of the top of corrugation of the corrugated pipe, and retaining means having an outside diameter small enough to be inserted into the small-diameter portion, an inside diameter large enough to be penetrated by the corrugated pipe, and a first end portion capable of engaging the engaging member, the retaining means being adapted to press the end portion of the corrugated pipe against the seal means, while transferring the elastic member from the large-diameter portion to the small-diameter portion, thereby holding the engaging member in a predetermined axial position such that the engaging member is located in a root portion of the corrugated pipe.

REFERENCES:
patent: 1710416 (1929-04-01), Goeller
patent: 1738216 (1929-12-01), Wallace
patent: 2503169 (1950-04-01), Phillips
patent: 2731058 (1956-01-01), Smisko
patent: 2961630 (1960-11-01), Duncan
patent: 3425026 (1969-01-01), Theunissen
patent: 3635501 (1972-01-01), Thorne-Thomsen
patent: 3649052 (1972-03-01), Snyder, Jr.
patent: 3871691 (1975-03-01), Takagi et al.
patent: 3934902 (1976-01-01), McNamee
patent: 4014467 (1977-03-01), Ferguson
patent: 4437691 (1984-03-01), Laney
patent: 4630850 (1986-12-01), Saka
patent: 4674775 (1987-06-01), Tajima et al.

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