Electricially heated hinged mat

Details Electricially heated hinged mat Electricially heated hinged mat

1995-01-03

1997-06-10

Walberg, Teresa J.

Electric heating

Heating devices

Combined with diverse-type art device

219528, 219544, 219549, 219524, H05B 334

Patent

active

056372477

ABSTRACT:
A flexible waterproof mat has an elongated serpentine heating element extending throughout the middle thereof. The heating element is divided into portions and the mat is divided into a segments separated by hinges. Each hinge consists of interlocking flat knuckles formed by the mat. Each portion of the heating element is located in each segment of the mat and is provided with fingers that extend through the knuckles. An electrically conductive pintle extends transversely through the interlocking flat knuckles in order to electrically connect the portions of the heating element together.

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patent: 4363947 (1982-12-01), Bergersen
patent: 5451743 (1995-09-01), du Preez

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