H - Electricity – 05 – B
Patent
H - Electricity
05
B
327/2.11
H05B 6/64 (2006.01) H05B 6/72 (2006.01) H05B 6/80 (2006.01)
Patent
CA 1142601
TITLE OF THE INVENTION A HIGH FREQUENCY ENERGY SUPPLY IN A HIGH FREQUENCY HEATING APPLIANCE ABSTRACT OF THE DISCLOSURE There is described an energy feeding device for installa- tion in a high frequency heating appliance which includes a heating chamber, a high frequency oscillator for supplying a high frequency energy to the heating chamber, a waveguide for transmitting the high frequency electromagnetic wave generated from the high frequency oscillator, and a rotary antenna for radiating the high frequency electromagnetic wave so transmitted by the waveguide into the heating chamber. The rotary antenna has a revolving drive shaft, made of a material with a low dielectric loss and is connected to a drive source, a metal pipe which is connected to the revolving drive shaft at its socket end. The socket end of the metal pipe is expanded and rounded off, thereby substantially preventing sparking under light load.
356543
Ikeda Nobuo
Yoshimura Hirofumi
Fetherstonhaugh & Co.
Matsushita Electric Industrial Co. Ltd.
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