End fittings for flexible metallic conduits

Details End fittings for flexible metallic conduits End fittings for flexible metallic conduits

1979-10-09

1981-09-08

Callaghan, Thomas F.

Pipe joints or couplings

Elbow

285247, 285251, 285259, F16L 3324

Patent

active

042881102

ABSTRACT:
An end fitting for a flexible metallic conduit comprises a tubular body having an external thread to enable the body to be screwed into an end of a conduit, a tubular sleeve having an external thread to enable the end fitting to be threadedly mounted on a support, and a rotary tubular collar threadedly mounted on a stationary projection of one-piece with the body. The collar has an inner circumferential tapered surface which bounds a wedge-shaped annular space with the externally threaded end of the body. The conduit is received in wedged, moisture-resistant engagement in the space. A stressed O-ring seal between the sleeve and the stationary projection provides another moisture-resistant seal.

REFERENCES:
patent: 1266416 (1918-05-01), Davis
patent: 1698195 (1929-01-01), Karbowski
patent: 2883513 (1959-04-01), Schnabel
patent: 3791680 (1974-02-01), Cleare
patent: 3902745 (1975-09-01), Mooney et al.
patent: 3921297 (1975-11-01), Vit

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