Digital control for a cooking time and power of an electric cook

Details Digital control for a cooking time and power of an electric cook Digital control for a cooking time and power of an electric cook

1978-08-23

1981-02-10

Albritton, C. L.

Electric heating

Metal heating

Of cylinders

219506, 235 92EC, 3403094, 340711, H05B 668

Patent

active

042503701

ABSTRACT:
A control device adapted to control cooking time and power of an electric cooking device. By depressing entry keys on a control panel a desired cooking time data and power level setting data are entered in first and second shift registers respectively. Next when a cooking start key is depressed the electric cooking device starts its operation at a power corresponding to the power level setting data and the down count operation of the time data in the first shift register is started. When the time data in the first shift register becomes zero due to the down count operation the cooking device stops its operation. The data in the first and second shift registers are displayed by digital indicators. The time data in the first shift register is detected whether or not it has an erroneous digit or digits and any detected erroneous digit or digits are blanked or flashed on the digital indicators.

REFERENCES:
patent: 3699531 (1972-10-01), Heimann
patent: 3753032 (1973-08-01), Naidich et al.
patent: 3798428 (1974-03-01), Izawa
patent: 3864677 (1975-02-01), Bekki et al.
patent: 3891973 (1975-06-01), Maxwell
patent: 3967266 (1976-06-01), Roy
patent: 3974472 (1976-08-01), Gould, Jr.
patent: 3986333 (1976-10-01), Kimura et al.
patent: 4011428 (1977-03-01), Fosnough et al.
patent: 4086588 (1978-04-01), Kawanabe et al.
TMS 1117 Microwave Oven Controller Feature Summary, Texas Instruments Inc., Copyright, 1976.
Literature of Cook-N-Care Guide From Frigidaire.

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