Electric heating – Heating devices – Combined with diverse-type art device
Patent
1990-11-08
1993-03-30
Walberg, Teresa J.
Electric heating
Heating devices
Combined with diverse-type art device
219543, 219504, H05B 384, H05B 314
Patent
active
051986396
ABSTRACT:
A positive temperature coefficient composition including a monomeric crystalline organic material is disclosed having a preselected switching temperature below about 150.degree. Fahrenheit. Devices incorporating same and related method of manufacture are set forth. The material includes a continuous, single phase solution of a polymer, for providing cohesion and flexibility to the positive temperature coefficient material.
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