Patent ID: 6888112

Claim:
A woven fibrous article adapted to generate heat upon application of electrical power, comprising: a woven fibrous body comprised of a set of non-conductive warp yarns and a set of non-conductive filling or weft yarns, one of said set of non-conductive warp yarns and said set of non-conductive filling or weft yarns in one or more first regions comprising relatively more coarse yarns and in one or more second regions comprising relatively more fine yarns with electrical conductor elements extending generally along said second regions of said woven fibrous body and adapted to connect a plurality of spaced apart electrical conductance heating elements in a parallel electrical circuit to a source of electrical power, and the other of said set of non-conductive warp yarns and said set of non-conductive filling or weft yarns in the one or more first regions and in the one or more second regions comprising relatively more fine yarns, with said plurality of spaced apart electrical conductance heating elements in the form of conductive elements joined in said woven fibrous body with the other of said set of non-conductive warp yarns and said set of non-conductive filling or weft yarns to extend generally between opposite said second regions of said woven fibrous body.