Power heating member

Details Power heating member Power heating member

1989-04-12

1990-10-30

Envall, Jr., Roy N.

Electric heating

Heating devices

Tool or instrument

219553, H05B 312

Patent

active

049670581

ABSTRACT:
A heating member for processing an object to be processed in contact therewith by heat generated upon power supply, comprising a conductive substrate, and an insulating layer formed at least at that portion of the conductive substrate which is brought into contact with the object to be processed. The insulating layer has a specific resistance 100 times or more that of the conductive substrate, or of at least 10.sup.-2 .OMEGA..cm. The insulating layer prevents a shunt current flowing from the heating member to the object to be processed.

REFERENCES:
patent: 3576969 (1971-05-01), Surty
patent: 4025750 (1977-05-01), Keizer
patent: 4255644 (1981-03-01), Delorme
patent: 4528546 (1985-07-01), Paoli
patent: 4828162 (1989-05-01), Donner
patent: 4855559 (1989-08-01), Donner

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