Electric heating – Metal heating – Of cylinders
Patent
1979-08-31
1982-01-19
Rubinson, Gene Z.
Electric heating
Metal heating
Of cylinders
219497, 99325, 236 46A, 340634, 426243, H05B 668
Patent
active
043118950
ABSTRACT:
A combined microwave and electric heating cooking apparatus comprising a magnetron for microwave cooking purposes, a sheath heater for electric heating cooking purposes, and a cooking control circuit for controlling operations of the magnetron and the sheath heater. A gas sensor is disposed in an exhaustion gas path for detecting the concentration of the gas generated from a foodstuff. When an output signal of the gas sensor indicates that the gas concentration reaches a preselected value, the cooking control circuit develops a control signal for terminating the cooking. Selection switches are provided for determining the above-mentioned preselected value in accordance with the kind of the foodstuff to be cooked.
REFERENCES:
patent: 3839616 (1974-10-01), Risman
patent: 4080564 (1978-03-01), Nitta et al.
patent: 4097707 (1978-06-01), Kobayashi et al.
patent: 4162381 (1979-07-01), Buck
patent: 4187542 (1980-02-01), Ball et al.
patent: 4213023 (1980-07-01), Satoh et al.
Radio Electronics, vol. 47, No. 7, pp. 46-47, Jul. 1976; "Build a Gas Sensor", By C. R. Lewart.
George Keith E.
Rubinson Gene Z.
Sharp Kabushiki Kaisha
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