High frequency cooking device with ceiling mounted semi-spherica

Details High frequency cooking device with ceiling mounted semi-spherica High frequency cooking device with ceiling mounted semi-spherica

1989-09-01

1990-10-30

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

H05B 674

Patent

active

049670506

ABSTRACT:
A high-frequency heat cooking device in which high-frequency electric wave is introduced from a high-frequency oscillating power source into a heating chamber through a power supply opening provided on a ceiling wall of the heating chamber, comprising a semi-spherical reflective device or post being protruded from and integrally formed with a waveguide, on a ceiling face of the waveguide at a position immediately above the power supply opening constructed on the ceiling wall of the heating chamber and the semi-spherical dielectric being located oppositely to the power supply opening.

REFERENCES:
patent: 3210511 (1965-10-01), Smith
patent: 3641301 (1972-02-01), Ikeda
patent: 3746823 (1973-07-01), Whiteley
patent: 4176266 (1979-11-01), Kaneko et al.
patent: 4642435 (1987-02-01), Fitzmayer et al.
patent: 4673783 (1987-06-01), Igarashi et al.
patent: 4833285 (1989-05-01), Okamoto et al.

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