Electrically operated control device and system for a microwave

Details Electrically operated control device and system for a microwave Electrically operated control device and system for a microwave

1988-04-22

1989-07-18

Leung, Philip H.

Electric heating

Metal heating

Of cylinders

219492, 219506, 99325, 340706, 200 37A, H05B 668, G09G 302

Patent

active

048495956

ABSTRACT:
An electrically operated control device and system for a microwave oven and method of making the same are provided, the device comprising a microprocessor for operating the power unit of the oven at various selected levels thereof, and a selector unit electrically interconnected to the microprocessor for selecting the desired power level that the microprocessor is to operate the power unit, the selector unit comprising a rotary switch that is electrically interconnected to the microprocessor in such a manner that the selector unit has a set sequence of the selection levels as the selector unit is rotated in one direction from a beginning position thereof to an ending position thereof, the beginning position being the position where the selector unit has last set for a previously desired power level setting of the microprocessor.

REFERENCES:
patent: 4343977 (1982-08-01), Koyama
patent: 4430540 (1984-02-01), Scalf
patent: 4568927 (1986-02-01), Fowler
patent: 4625084 (1986-11-01), Fowler et al.
patent: 4697057 (1987-09-01), Fowler

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