High-frequency heating apparatus

Details High-frequency heating apparatus High-frequency heating apparatus

1991-05-22

1992-12-15

Reynolds, Bruce A.

Electric heating

Metal heating

Of cylinders

219 1055D, 219 1055F, 219 1055R, B23K 1510

Patent

active

051719479

ABSTRACT:
A high-frequency heating apparatus includes: a high-frequency oscillator for generating high-frequency electromagnetic waves using electrical power supplied from a power source circuit; a heating chamber into which the high-frequency electromagnetic waves are supplied by the high-frequency oscillator; a receiving antenna which is provided outside the heating chamber and adjacent to an opening of the heating chamber; a dielectric plate for covering the opening, which is provided between the heating chamber and the antenna; and a control circuit which receives an output from the antenna via a detector so as to output a control signal to the power source circuit.

REFERENCES:
patent: 2704802 (1955-03-01), Blass et al.
patent: 4162381 (1979-07-01), Buck
patent: 4185181 (1980-01-01), Kaneko et al.
patent: 4297557 (1981-10-01), Tyler et al.
patent: 4520250 (1985-05-01), Ishihara et al.
patent: 4582971 (1986-04-01), Ueda
patent: 4734553 (1988-03-01), Noda
patent: 4831239 (1989-05-01), Ueda
patent: 4920246 (1990-04-01), Aoki

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