Electric heating – Metal heating – Of cylinders
Patent
1988-01-29
1990-08-07
Kozma, Thomas J.
Electric heating
Metal heating
Of cylinders
219 10493, 336208, 336224, 336232, H05B 640
Patent
active
049474642
ABSTRACT:
In a method of manufacturing a heating coil assembly for electromagnetic induction cooking heater in which a coil supporting base and a flat shaped coil winding frame are mounted on the spindle of a coil winding machine in such a manner as to form a coil receiving space therebetween, and a wire is wound in the space to form a coil, the coil supporting base and/or the coil winding frame has protrusions which extend in the space at the middle part, to vary the coil winding pitch, whereby the coil thus formed has a gap at the middle part, thus showing a uniform temperature distribution when energized.
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Kihira Kazunobu
Mori Masaya
Kozma Thomas J.
Sumitomo Electric Industries Ltd.
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