LOW-FREQUENCY INDUCTION HEATER Russian patent published in 1997 - IPC

FIELD: heating dwelling and nondwelling houses and miscellaneous process pieces of equipment. SUBSTANCE: each heater coil is made as single-layer Archimedean spiral of insulation-covered conducting material of low resistivity; all coils are arranged in same plane, interconnected, and joined together by insulating material to form solid single- layer tape that may be shaped in section as rectilinear plate, ring, or ring parts, or as round bent at angle or at several angles. Glass-reinforced plastic or rubber base material, or plastic polymer base material may be used as insulating material for joining coils together. EFFECT: provision for uniform heating of part simplified design, reduced weight, facilitated servicing of heater. 7 cl