Combined microwave and electric heating oven selectively...

Details Combined microwave and electric heating oven selectively... Combined microwave and electric heating oven selectively...

F - Mech Eng,Light,Heat,Weapons

24

C

327/1.7

F24C 7/02 (2006.01) H05B 6/68 (2006.01) H05B 6/80 (2006.01) H05B 11/00 (2006.01)

Patent

CA 1138938

ABSTRACT OF THE DISCLOSURE A combined microwave and electric heating oven includes a magnetron for microwave cooking purposes, and a heater for electric heating cooking purposes. A gas sensor is disposed in an exhaustion duct for detecting concentration of a gas developed from an oven cavity, and a thermistor is secured to an oven wall for detecting an air temperature within the oven cavity. A pro- grammed automatic cooking control system is provided for first activating the magnetron. When the gas sensor output reaches a preselected value, the magnetron energization is terminated and, then, the heater is energized. Power supply to the heater is controlled in response to an output signal derived from the ther- mistor.

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