Electrically conductive pipe fitting

Details Electrically conductive pipe fitting Electrically conductive pipe fitting

1976-10-14

1978-08-15

Shedd, Wayne L.

Electricity: conductors and insulators

Conduits, cables or conductors

Combined

361215, 285 55, 285323, 285 81, 285383, 285423, F16L 1112

Patent

active

041074521

ABSTRACT:
A fitting for the end of a plastic pipe segment includes a body having an open-ended bore in which the pipe segment is received. A wedge-shaped grip ring and annular gasket are fitted over the pipe segment and compresses against an annular shoulder provided in the sidewall of the bore by a compression nut threaded into the open end of the bore. Abutting complimentarily inclined surfaces on the compression nut and the grip ring provide simultaneous radial compression of the grip ring and axial compression of the gasket when the compression nut is tightened. A sleeve-shaped stiffener within the pipe segment prevents deformation of the pipe wall. A plurality of radially extending serrations on the inside surface of the grip ring and on the outside surface of the stiffener engage the inner and outer surfaces of the pipe wall to secure the pipe segment to the fitting. An electrically conductive collar may be provided within the bore to establish electrical continuity between adjacent pipe segments.

REFERENCES:
patent: 1743315 (1930-01-01), Callender
patent: 2228018 (1941-01-01), Scholtes
patent: 2470546 (1949-05-01), Carlson
patent: 3498647 (1970-03-01), Schroeder
patent: 3756632 (1973-09-01), Riggs et al.
patent: 3888519 (1975-06-01), Smith et al.
patent: 3977704 (1976-08-01), Meyer
patent: 3986731 (1976-10-01), DeHoff

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