Layered self-regulating heating article

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

H - Electricity

05

B

309/105

H05B 3/12 (2006.01) B29C 65/34 (2006.01) H01C 1/14 (2006.01) H01C 7/02 (2006.01) H05B 3/06 (2006.01) H05B 3/14 (2006.01)

Patent

CA 1062755

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 (CW) 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. In a preferred embodiment, upon heating the article, change in dimensions as well as activation of an adhesive occurs.

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