Microwave oven having device for preventing concentration of mic

Details Microwave oven having device for preventing concentration of mic Microwave oven having device for preventing concentration of mic

1990-06-08

1992-01-21

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219 1055F, H05B 664

Patent

active

050829998

ABSTRACT:
A high-frequency heating device employs microwave heating by a magnetron and heater heating by a heater sheathed by dielectric material. The heating device is internally provided with a wall structure formed in a device housing and having a heating chamber and a heater compartment defined therein. The heater compartment is open towards the heating chamber in communication therewith. The heating device is further internally provided with a magnetron, fixedly mounted in the housing, for supplying microwaves into the heating chamber, a dielectric heater accommodated in the heater compartment and extending through opposite side walls of the heater compartment, and one or more metallic rods, disposed near the heater and securely mounted on at least one of the side walls of the heater compartment, for preventing a concentration of microwaves on the heater.

REFERENCES:
patent: 2920174 (1960-01-01), Haagensen
patent: 4019010 (1977-04-01), Tanaka et al.
patent: 4144434 (1979-03-01), Chiron et al.
patent: 4223194 (1980-09-01), Fitzmayer
patent: 4326112 (1982-04-01), Tanaka et al.

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