초록 ▼

A soft heater utilizing metal fiber containing, carbon, metal or conductive ink coated threads, embroidered on, laminated between or woven into a nonconductive substrate to form electrical heating circuits. The heating element may be manufactured in a form of strip, sheet, sleeve or strand of thread

A soft heater utilizing metal fiber containing, carbon, metal or conductive ink coated threads, embroidered on, laminated between or woven into a nonconductive substrate to form electrical heating circuits. The heating element may be manufactured in a form of strip, sheet, sleeve or strand of threads for incorporation into plurality of articles. The soft heating element core may contain localized treatment such as positive temperature coefficient (PTC) material for temperature self-limiting control. The electrode conductors are attached to said heating element core which is connected in parallel or in series. The heating element core is shaped in a desired pattern. The whole assembly is sealed by at least one electrically insulated layer which envelopes the strips, sheets, sleeves, ropes or strands of threads.

대표청구항 ▼

[ What is claimed is:] [2.]2. A soft multiconductor heater having a durable construction for incorporation into a plurality of articles, said heater comprising:a conductive electrode means for introducing an electrical current to said heater;at least one continuous electrically conductive textile he

[ What is claimed is:] [2.]2. A soft multiconductor heater having a durable construction for incorporation into a plurality of articles, said heater comprising:a conductive electrode means for introducing an electrical current to said heater;at least one continuous electrically conductive textile heating element core, which comprises carbon coated nonmetallic inorganic threads as electrical resistance heating means,electrically redundant means for providing redundant electrical circuits, diversity and control of electrical resistance in selected areas of said heater,an insulating means for insulating at least said carbon coated inorganic threads with nonconductive means.