H - Electricity – 05 – B
Patent
H - Electricity
05
B
327/1.7
H05B 11/00 (2006.01) H05B 6/68 (2006.01)
Patent
CA 1190604
ABSTRACT OF THE DISCLOSURE In a preferred form of the present invention, there is provided a combined microwave and grill heater oven. Two sensors, typically, a gas sensor and a heat-sensible element (i.e. thermistor) are provided. The gas sensor, from timewise variations in terminal voltage provides information to a micro- computer to permit it to determine the type of food being heated and optimum terminal voltage. The thermistor, from timewise variations in terminal voltage, may provide information as to compensations desirable due to the weight of food. A single switch common to all foods is provided for operation of auto cooking. A termination of heating instruction is issued when both the gas sensor and the thermistor reach their intended final levels. Furthermore, a compensation value is evaluated from the rate of timewise variations in the output from the heat-sensible element. After the microwave heating has been completed, grill heating is performed for a length of time which is determined by the compensation value.
407233
G. Ronald Bell & Associates
Sharp Kabushiki Kaisha
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