Electric heating – Metal heating – Of cylinders
Patent
1982-04-12
1984-03-13
Reynolds, B. A.
Electric heating
Metal heating
Of cylinders
219 1055R, H05B 674
Patent
active
044369735
ABSTRACT:
A high frequency heating appliance which includes a magnetron, which is used as a high frequency oscillator, and which is directly mounted in a heating chamber and which further includes a stirrer fan for ensuring a uniform electric field distribution of high frequency electromagnetic radiation in the chamber; the fan is mounted coaxially with an antenna for the magnetron; the stirrer fan is provided with a vertical metallic segment for high frequency impedance matching and the vertical metallic segment has a horizontal metallic subsegment located on its end which is oriented so as to be substantially at right angles with the vertical metallic segment for providing a sufficient capacitive coupling between the wall of the heating chamber and the horizontal metallic subsegment with an adequate gap being secured from the heating chamber wall supporting the magnetron. The above-noted construction ensures an improved efficiency and improved distribution of the high frequency output of the magnetron.
REFERENCES:
patent: 4019010 (1977-04-01), Tanaka et al.
patent: 4132239 (1979-01-01), Bowen et al.
patent: 4284868 (1981-08-01), Simpson
Ikeda Nobuo
Yoshimura Hirofumi
Leung Philip H.
Matsushita Electric - Industrial Co., Ltd.
Reynolds B. A.
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