H - Electricity – 05 – B
Patent
H - Electricity
05
B
309/1
H05B 3/56 (2006.01) H05B 3/58 (2006.01)
Patent
CA 1176292
Abstract of the Invention The heater of the present invention includes a paper or plastic substrate on which is printed a semi-conductor pattern (typically a colloidal graphite ink) having (a) a pair of stripes extending parallel to and spaced apart from each other and (b) a plurality of identical bars spaced apart from each other and extending between and electrically connected to the stripes. A metallic conductor (typically copper stripping) overlies each of the longitudinal stripes in face-to-face engagement therewith, and the conductors are held in tight engagement with the stripes by a sealing layer that overlies the metallic conductors and is sealed, at opposite sides of the semi-conductor stripe associated with the particular metallic conductor, to portions of the substrate that are free from the printed semi-conductor pattern.
384686
Grise Frederick G.j.
Stumphauzer William C.
Grise Frederick G.j.
Smart & Biggar
Stumphauzer William C.
LandOfFree
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