FABRIC ELECTRIC HEATER Russian patent published in 1995 - IPC

FIELD: electric heaters. SUBSTANCE: device has flat resistive element which is made from fabric which warp has electric conducting and non-conducting fibers. Electrodes are positioned along warp. Insulation layers cover both sides of resistive element. Fibers without electrodes are made from combined cotton fibers. Volume ratio of non-conducting fibers to conducting ones in warp varies in range from 1:1 to 1:1.5. Volume ratio of conducting wires of warp to weft varies in range 1:1.5 to 1:10. Electrodes have current conductors which are shaped as parallel branches and attached to electrodes. Terminals of electric contact of current conductors are located outside resistive element, namely in area of insulating layers. EFFECT: increased reliability, improved user features. 1 tbl, 3 dwg