H - Electricity – 05 – B
Patent
H - Electricity
05
B
327/19
H05B 6/12 (2006.01) H05B 6/36 (2006.01)
Patent
CA 1135348
TITLE OF THE INVENTION INDUCTION HEATING COIL ABSTRACT OF THE DISCLOSURE An improved flat induction heating coil for a cooking apparatus of the type in which an electrically conductive cook- ing utensil is heated according to the principle of electromag- netic induction. To provide a substantially uniform magnetic flux density distribution in the induction coil constituting a part of the cooking apparatus, and,hence, a uniform temperature dis- tribution across the bottom of the cooking utensil, a refractory insulating material is wound adjacent inner turns of the coil to provide a comparatively larger winding pitch for said inner turns than for outer turns. This arrangement makes for a flattened temperature profile and eliminates an unevent cooking of food.
348913
Fetherstonhaugh & Co.
Matsushita Electric Industrial Co. Ltd.
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