Patent ID: 8592725
Filing Date: 2013-11-26
Classification: H05B

Abstract:
1. A heating element for a garment, said garment comprising a shell having an interior and an exterior, said interior being contacted by a wearer when the garment is worn, said heating element comprising: a filament of uninsulated metal wire stitched onto a flexible fabric substrate into a pattern, said pattern comprising a plurality of spaced apart segments, with spaces therebetween, and a plurality of bends between the plurality of straight segments; and a sealing tape sheet comprising a sealing base film and a sealing hot melt adhesive coextensive with and affixed to the base film, said sealing tape sheet being coextensive with said fabric substrate, said sealing hot melt adhesive coating the filament of uninsulated metal wire stitched onto the flexible fabric substrate and occupying spaces between the plurality of spaced apart segments by flowing into said spaces when said hot melt adhesive is melted and said hot melt adhesive solidifying in said spaces when cooled, said hot melt adhesive preventing contact between the plurality of spaced apart segments of the filament of uninsulated metal wire, thereby preventing electrical shorts, and said sealing hot melt adhesive having a thickness effective for coating the filament of uninsulated metal wire stitched onto the flexible fabric substrate and occupying spaces between the plurality of spaced apart segments by flowing into said spaces when said hot melt adhesive is melted and said hot melt adhesive solidifying in said spaces when cooled; and a garment thermal insulation layer coextensive with the flexible fabric substrate, said flexible fabric substrate being disposed between the sealing tape and the garment thermal insulation layer, said garment thermal insulation layer defining a stratum to abut the shell at the interior of the garment; and said sealing tape sheet, uninsulated metal wire stitched onto the flexible substrate in the pattern, and the garment thermal insulation comprising a flexible multilayer assembly having a periphery; and an elongated border tape having a longitudinal axis, a thickness and a width, a portion the width of the elongated border tape overlapping the periphery, and another portion of the width of the elongated border tape being provided for attachment to the shell at the interior of the garment, said elongated border tape comprising an elongated base film and an elongated hot melt adhesive coextensive with and affixed to the elongated base film, said elongated hot melt adhesive of the elongated border coating the periphery of the multilayer assembly and said elongated base film of the elongated border sealing the periphery of the multilayer assembly.