Means in heating pads for seats

Details Means in heating pads for seats Means in heating pads for seats

H - Electricity

05

B

309/7

H05B 3/34 (2006.01) A47C 7/74 (2006.01)

Patent

CA 1222272

Abstract It has been found that in heating pads for seats, preferably car-seats, in which the heating pad (1 and 2) covers both seat and back-rest, an energy recoil from the back-rest may occur. The invention reduces said recoil by dimensioning the resistance wire (11) in the section (4 and 6) of the heating pad (1 and 2) covering the seat and of the resistances wire (10) in the section (3 and 5) of the heating pad (1 and 2) covering the back-rest in such a way that the ratio between the resistance of the first-mentioned resistance wire (11) and that of the last-mentioned resistance wire (10) increases when current flows through.

453005

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