Electric heating – Metal heating – Of cylinders
Patent
1980-01-17
1982-02-16
Dobeck, B.
Electric heating
Metal heating
Of cylinders
219 1055R, 219497, 340634, H05B 668, H05B 102
Patent
active
043160689
ABSTRACT:
A combined microwave and electric heating oven comprises a gas sensor disposed in an exhaustion duct for detecting an exhaustion gas concentration, and a thermistor disposed in the exhaustion duct for detecting an exhaustion air temperature. A control circuit is connected to receive output signals derived from the gas sensor and the thermistor for terminating a cooking operation when both of the exhaustion gas concentration and the exhaustion air temperature exceed preseleted reference levels, respectively.
REFERENCES:
patent: 2942221 (1960-06-01), Girolamo
patent: 3012116 (1961-12-01), Boylan et al.
patent: 3028472 (1962-04-01), Baird
patent: 3839616 (1974-10-01), Risman
patent: 4109129 (1978-08-01), Satoh et al.
patent: 4133995 (1979-01-01), Buck
patent: 4162381 (1979-07-01), Buck
patent: 4181744 (1980-01-01), Buck
patent: 4188520 (1980-02-01), Dills
IBM TDB "Voltage Controlled Oscillator" by E. L. Newman, vol. 19, No. 10, pp. 3899-3900, Mar. 1977.
Dobeck B.
George Keith E.
Sharp Kabushiki Kaisha
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