Electric heating element for fusing thermoplastic materials

Electric heating – Heating devices – With heater-unit housing – casing – or support means

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Details

219544, 285 22, 285286, H05B 358

Patent

active

048945218

ABSTRACT:
An electric heating element for electrically fusing thermoplastic materials. The heating element comprises an elongated thermoplastic insulated wire wound in a spiral configuration with adjacent surfaces of the thermoplastic insulation adhered together.

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patent: 4117311 (1978-09-01), Sturm
patent: 4147926 (1979-04-01), Stahli
patent: 4349219 (1982-09-01), Sturm
patent: 4436987 (1984-03-01), Thalmann
patent: 4436988 (1984-03-01), Blumenkranz
patent: 4449038 (1984-05-01), Reich
patent: 4455482 (1984-06-01), Grandclement
patent: 4486650 (1984-12-01), Bridgestock et al.

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