Layered self-regulating heating article

Details Layered self-regulating heating article Layered self-regulating heating article

1985-09-12

1987-03-31

Griffin, Donald A.

Electric heating

Heating devices

With heating unit structure

338 22, H05B 310

Patent

active

046545115

ABSTRACT:
A self-regulating heating article comprising a layer of material exhibiting a positive temperature coefficient of resistance (PTC) and said PTC layer having at least partially contiguous therewith at least one layer of constant wattage output material. The article operates such that when connected to an electric power source, the current flows through at least a portion of the thickness of the PTC layer and of the constant wattage layer.

REFERENCES:
patent: 4543474 (1985-09-01), Horsma et al.

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