Electrically weldable socket for joining pipe members

Details Electrically weldable socket for joining pipe members Electrically weldable socket for joining pipe members

1984-03-22

1985-07-23

Callaghan, Thomas F.

Pipe joints or couplings

With assembly means or feature

Molded joint facilitator

219544, 285381, F16L 4702

Patent

active

045305218

ABSTRACT:
A socket for joining the ends of conduits, pipe or the like comprising a body of thermoplastic material in which is embedded, in a helical coil, a resistance wire strand formed of a plurality of juxtaposed individual thin wire elements, the wire elements being in part spaced from one another, to form gaps allowing for expansion of or movement of the wire elements without overall expansion or movement of the strand.

REFERENCES:
patent: 3190771 (1965-06-01), McLean et al.
patent: 3393292 (1968-07-01), Ritscher
patent: 3943334 (1976-03-01), Sturm
patent: 4037083 (1977-07-01), Leavines
patent: 4117311 (1978-09-01), Sturm
patent: 4176274 (1979-11-01), Lippera
patent: 4313053 (1982-01-01), Sturm

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