Planar resistance heating element

Details Planar resistance heating element Planar resistance heating element

1985-02-08

1986-12-09

Broome, H.

Electric heating

Heating devices

With power supply and voltage or current regulation or...

219541, 219543, 219548, 338328, 338306, 338308, 338309, H05B 102

Patent

active

046281878

ABSTRACT:
A planar resistance heating element with positive temperature coefficient characteristics includes a resistive body layer formed of a crystalline resin containing electrically conductive particles and disposed between at least a pair of electrodes on an insulating substrate. A phenolic resin layer or a denatured phenolic resin layer with an elastomer resin added is disposed on the resistive body layer in covering relation to the entire surface thereof. An insulating protective film of resin may be disposed on the covering layer with an adhesive layer interposed therebetween, and an adhesive layer may be disposed on an outer surface of the insulating protective film for attachment to an object to be heated.

REFERENCES:
patent: 3757088 (1973-09-01), Osborn
patent: 3781526 (1973-12-01), Domron
patent: 3878362 (1975-04-01), Stinger
patent: 3900654 (1975-09-01), Stinger
patent: 4016525 (1977-04-01), Maher et al.
patent: 4250398 (1981-02-01), Ellis et al.
patent: 4304987 (1981-12-01), VanKonynenburg
patent: 4485297 (1984-11-01), Grise et al.

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