Heating element

Details Heating element Heating element

1985-01-28

1986-10-07

Goldberg, E. A.

Electric heating

Heating devices

With heating unit structure

219505, 219548, 338 22R, 338212, H05B 310

Patent

active

046161252

ABSTRACT:
In a heating element comprising an electrical resistance layer disposed between two areal electrodes extending generally parallel to one another, the resistance layer is formed to be thermally insulating and is permeated with electrically conductive plastics material having a positive temperature coefficient of electrical resistance. The conductive plastics may comprise thermoplastics material incorporating a particulate filler of granular, spheroidal or bubble form, and the electrodes may be coated black to serve as black bodies. The element may be disposed within a thermally insulating member acting as a heat shield.

REFERENCES:
patent: 3397302 (1968-08-01), Hosford
patent: 3535494 (1970-10-01), Armbruster
patent: 4177376 (1979-10-01), Horsma et al.
patent: 4223209 (1980-09-01), Diaz
patent: 4304987 (1981-12-01), van Konynenburg
patent: 4517449 (1985-05-01), Chazan et al.

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