Patent ID: 6891136
Filing Date: 2005-05-10
Classification: A61F,H05B

Abstract:
1. A heating unit for use in a heating device for surface heating of a body to enable maintaining a required temperature of the body, the heating unit comprising first and second elements each made of a material with a specific resistivity in a range of about 0.01-0.1 Ohm·mm 2 /m thereby enabling substantial flatness and flexibility of the heating unit, the first and second adjacent elements being accommodated in spaced-apart planes, being electrically insulated from each other, and having different resistance and different surface areas as compared to each other the first element having the relatively high resistance and relatively low surface area serving as a heater, and the second element which is to be located closer to the body, when the heating unit is in operation, serving as a distributor of heat created by the first element when connected to a power source, the heating unit being arranged so as to provide for compensating a magnetic field created by the heating unit when connected to the power source.