Inventors:
Peter Bergholtz - Rockport MA
Assignee:
Ken-Bar Inc. - Reading MA
International Classification:
H05B 310
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.