High frequency heating unit with rotating waveguide

Details High frequency heating unit with rotating waveguide High frequency heating unit with rotating waveguide

1984-10-25

1986-02-04

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055D, H05B 672

Patent

active

045688117

ABSTRACT:
This invention is designed to make uniform the heating of the object inside the heating chamber by turning an internal waveguide which is roughly in a foldable fan shape and located at the bottom of the heating chamber in a structure adapted for feeding high frequency electric waves from the bottom of the heating chamber. In order to have stable gyration of the internal waveguide, and annular protrusion made of a low loss dielectric is placed between the low impedance parts provided on the internal waveguide and the heating chamber bottom surface. In this way, a rotary structure which is economical, easy to assemble and reliable can be realized.

REFERENCES:
patent: 4176266 (1979-11-01), Kaneko et al.
patent: 4327266 (1982-04-01), Austin et al.
patent: 4430538 (1984-02-01), Suzuki et al.
patent: 4431888 (1984-02-01), Simpson
patent: 4476362 (1984-10-01), Kusunoki et al.
patent: 4496814 (1985-01-01), Fitzmayer

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