Microwave oven, in particular for rapid heating to high temperat

Details Microwave oven, in particular for rapid heating to high temperat Microwave oven, in particular for rapid heating to high temperat

1994-04-25

1995-05-30

Leung, Philip H.

Electric heating

Microwave heating

Enclosed cavity structure

219695, 219746, 219759, 219762, H05B 680

Patent

active

054204011

ABSTRACT:
A microwave oven, in particular for rapid heating to high temperature, is disclosed. A cylindrical metal housing is open at one end and has a cylindrical side wall, into which a waveguide opens, the waveguide being coupled to a microwave generator. A first outer layer of a thermally insulative, microwave-transparent material and a second inner layer thereof are provided in a coaxial configuration. A metal sleeve provided with plural coupling slots is interposed between the outer and inner layers. A muff of a microwave-absorbing material is received within a central opening of the inner layer and constitutes a heating enclosure. A metal plate fitted with an access door is provided for closing the open end of the housing. An infrared pyrometer or a thermocouple may be provided for measuring temperatures in the heating enclosure. The heating enclosure may have a vent for evacuating fumes and an orifice for injecting gases.

REFERENCES:
patent: 3469053 (1969-09-01), Levinson
patent: 3597566 (1971-08-01), Johnson
patent: 3622732 (1971-11-01), Williams
patent: 4019009 (1977-04-01), Kusunoki et al.
patent: 4140887 (1979-02-01), Sutton et al.
patent: 4163140 (1979-07-01), Bardet
patent: 4307277 (1981-12-01), Maeda et al.
patent: 4715727 (1987-12-01), Carr
patent: 5026957 (1991-06-01), Pralus

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