Electrically weldable bushings

Details Electrically weldable bushings Electrically weldable bushings

1984-03-08

1985-07-23

Callaghan, Thomas F.

Pipe joints or couplings

With assembly means or feature

Molded joint facilitator

219544, F16L 4702

Patent

active

045305200

ABSTRACT:
A bushing for joining the ends of fluid line conduits, or similar elements, comprising a body of thermoplastic, in which is embedded, in helical form, a resistance wire. The wire has a low coefficient of thermal expansion, permitting the thermoplastic material to melt and weld prior to the expansion thereof.

REFERENCES:
patent: 3943334 (1976-03-01), Sturm
patent: 4117311 (1978-09-01), Sturm
patent: 4176274 (1979-11-01), Lippera
patent: 4224505 (1980-09-01), Sturm

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