Encapsulated water impervious electrical heating pad

Details Encapsulated water impervious electrical heating pad Encapsulated water impervious electrical heating pad

1993-10-19

1995-12-19

Walberg, Teresa J.

Electric heating

Heating devices

With heating unit structure

219528, H05B 310

Patent

active

054770335

ABSTRACT:
An encapsulated water impervious electrical heating pad adapted for use in moist and rough handling conditions, as in a greenhouse environment includes an electrical resistance heating element sandwiched between a pair of sheets, the sheets having inner layers formed from a tacky pressure-sensitive adherent material and an outer protective layer of a water impervious polymer.

REFERENCES:
patent: 3153140 (1964-10-01), Theordore
patent: 3168617 (1965-02-01), Richter
patent: 3268846 (1966-08-01), Morey
patent: 4717812 (1988-01-01), Makita
patent: 4860434 (1989-08-01), Louison

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