Energy supply structure for combined resistance heater for H. F.

Details Energy supply structure for combined resistance heater for H. F. Energy supply structure for combined resistance heater for H. F.

1980-02-19

1981-12-08

Rubinson, Gene Z.

Electric heating

Metal heating

Of cylinders

219 1055B, H05B 672

Patent

active

043049745

ABSTRACT:
A heating appliance such as a stove which has a high frequency and resistance heater therein. A high frequency oscillator supplies frequency radiation energy through a waveguide extending to a energy feeding port in the heating chamber, and a rotary antenna extends through the energy feeding port for directing the high frequency energy into the heating chamber. A motor rotates the antenna, a heater of a type other than a high frequency heater, such as a resistance heater, is in the heating chamber substantially parallel with the wall of the heating chamber in which the energy feeding port is positioned. The rotary antenna has substantially an L shape with a longitudinal section extending from the waveguide into the heating chamber through the energy feeding port, the portions of the longitudinal section within the heating chamber from the wall in which the energy feeding port is positioned to the inner end thereof having a length substantially equal to one quarter the wavelength of the high frequency energy, and a lateral section connected to the longitudinal section at a point intermediate the length thereof within the heating chamber at a point between the wall of the heating chamber and the resistance heater.

REFERENCES:
patent: 2961520 (1960-11-01), Long
patent: 3265780 (1966-08-01), Long
patent: 4028521 (1977-06-01), Uyeda et al.
patent: 4185181 (1980-01-01), Kaneko et al.

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