Electric resistance heater

Details Electric resistance heater Electric resistance heater

1989-03-13

1990-03-27

Walberg, Teresa J.

Electric heating

Heating devices

With heating unit structure

219543, 219553, 338308, 338314, H05B 316

Patent

active

049123068

ABSTRACT:
An electrical heater including a semi-conductor pattern (e.g., colloidal graphite ink) printed on a substrate. A conductive ink (e.g., a silver ink) is deposited on the semi-conductor pattern. The conductive ink migrates into the semi-conductor material, provides a superior electrical contact between the conductor (e.g., the silver ink) and the underlying semi-conductor material (e.g., the semi-conductor graphite ink), and essentially eliminates interface resistance. In some embodiments, the semi-conductor pattern is printed on one side of a woven cloth substrate and the conductive ink is printed on the other side.

REFERENCES:
patent: 4429216 (1984-01-01), Bringham
patent: 4523085 (1985-06-01), Grise
patent: 4528546 (1985-06-01), Paoli
patent: 4584553 (1986-04-01), Tokurg
patent: 4591701 (1986-05-01), Tokumaru
patent: 4849255 (1989-07-01), Grise

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