Snow melting heater mats

Details Snow melting heater mats Snow melting heater mats

1988-08-02

1990-10-30

Walberg, Teresa J.

Electric heating

Heating devices

Combined with diverse-type art device

439281, 219549, 392435, H05B 336

Patent

active

049670573

ABSTRACT:
Individual electrically heated mats, self-regulated by use of an electrical element whose resistance varies proportionately with its temperature, used for covering walking areas to prevent accumulation of snow and ice. Each mat is provided with male and female electrical connections on the ends of short power cords to permit any number of mats to be chained together in electrical parallel and to be used to cover, for example, a flight of stairs by positioning one mat on each stair.

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