Microwave oven with a programmable digital control circuit

Details Microwave oven with a programmable digital control circuit Microwave oven with a programmable digital control circuit

1977-04-29

1981-03-10

Grimley, Arthur T.

Electric heating

Metal heating

Of cylinders

73352, 219506, H05B 906

Patent

active

042556392

ABSTRACT:
A control panel including digital input means is provided in a microwave oven for introducing desired information related to a cooking time period, a cooking mode or a mean output level of a magnetron, and a temperature to be maintained. The information introduced from the control panel is stored in a digital storage means, of which output signals are applied to a digital control circuit for controlling operation of the magnetron. A temperature sensing means is provided in the microwave oven for detecting a temperature of food being cooked. A detection output of the temperature sensing means is introduced into the digital control circuit, which compares the detection output with the temperature information stored in the digital storage means for controlling operation of the magnetron. The digital input means include a defrost switch for automatically programming intermittent defrost cooking.

REFERENCES:
patent: 3859644 (1975-01-01), Main
patent: 3875361 (1975-04-01), Fukui et al.
patent: 3974472 (1976-10-01), Gould, Jr.
patent: 3988577 (1976-10-01), Leitner et al.
patent: 4001536 (1977-01-01), Eberhardt
patent: 4009359 (1977-02-01), Tallmadge et al.
patent: 4011428 (1977-03-01), Fosnough et al.
patent: 4023004 (1977-05-01), Burke
patent: 4035787 (1977-07-01), Hornung
patent: 4038510 (1977-07-01), White
patent: 4054778 (1977-10-01), Wollich
patent: 4056708 (1977-11-01), Soodak et al.
patent: 4088862 (1978-05-01), Austin

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