Electric heating – Metal heating – Of cylinders
Patent
1988-09-28
1990-11-13
Leung, Philip H.
Electric heating
Metal heating
Of cylinders
219 1055B, 219 1055E, 99325, H05B 668
Patent
active
049703595
ABSTRACT:
An automatic cooking control system for a microwave over which utilizes a microcomputer for controlling the whole operation of a microwave oven. An electric power source and magnetron are used for generating microwave energy. Fans are disposed at an air inlet and an air outlet of a heating chamber. The air temperature of inflow and outflow are detected and converted by analog/digital converters into the digital signals. The system performs an initial operation process, first stage heating process, and second stage heating process to complete a full automatic cooking process. The system performs calculations to determine the parameters to be used in second stage heating process according to a temperature variation in ambient air around a microwave oven. This change could be due to the change in season or even a change during the operation of the microwave oven. This results in optimum cooking without regard to the temperature variation in ambient air around a microwave oven.
REFERENCES:
patent: 4115678 (1978-09-01), Tachikawa et al.
patent: 4162981 (1979-07-01), Buck
patent: 4812606 (1989-05-01), Eke
patent: 4831227 (1989-05-01), Eke
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