Electronic controlled heat cooking apparatus

Details Electronic controlled heat cooking apparatus Electronic controlled heat cooking apparatus

1980-05-06

1983-01-04

Paschall, M. H.

Electric heating

Metal heating

Of cylinders

219506, 219493, 364900, H05B 906

Patent

active

043673872

ABSTRACT:
A microwave oven is controlled to cause a magnetron to oscillate for a set timer time period. The timer time period is set by a device for entering a timer time period. The device comprises a displaceable operation knob provided and a code signal generator for generating a Gray code signal in association with the displaced amount of the operation knob. The generated code signal is converted into a binary coded decimal signal and is further converted into a time period signal, whereupon the same is stored as a timer time period. The magnetron is controlled to oscillate for an oscillation time period responsive to the timer time period as stored, while the set timer time period is down counted for each second in accordance with the lapse of the oscillation time period of the magnetron. The left time period obtained as a result of such down count is displayed by the digital display.

REFERENCES:
patent: 3407279 (1968-10-01), Greenberg
patent: 3846607 (1974-11-01), Bucksbaum
patent: 3974472 (1976-08-01), Gould, Jr.
patent: 4011428 (1977-03-01), Fosnough et al.
patent: 4040248 (1977-08-01), Laesser
patent: 4046991 (1977-09-01), Sefton et al.
patent: 4225776 (1980-09-01), Meisner et al.
patent: 4233498 (1980-11-01), Payne et al.
"McGraw--Hill Dictionary of Technical Terms", copyright 1974, p. 639.

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