Cooker with means for automatically controlling the heating of a

Details Cooker with means for automatically controlling the heating of a Cooker with means for automatically controlling the heating of a

1986-03-31

1987-12-22

Goldberg, E. A.

Electric heating

Heating devices

Combined with container, enclosure, or support for material...

219450, 219452, 219519, 219489, H05B 368

Patent

active

047148225

ABSTRACT:
Cooker automatically controlling the heating process when bringing a food material to the boil on an electric hotplate and preventing it from boiling over at the end of the heating process. At the beginning of the heating process the power supplied to an electric hotplate can be set to a constant value which can be selected. A microprocessor continuously determines the rise in the temperature of the base of the pan as a function of time. At a pan-base temperature above about 70.degree. C. the actual value of the rise in temperature is compared with a present desired value and when deviations occur the heating power is switched over so as to approximate the actual value of the rise in temperature to the desired value. At a pan-base temperature above about 90.degree. C. a bending point in the temperature rise of the pan base is reached after which the heating power is switched off.

REFERENCES:
patent: 4465228 (1984-08-01), Mori
patent: 4492336 (1985-01-01), Takata
patent: 4493980 (1985-01-01), Payne
patent: 4604518 (1986-08-01), Payne
HEA-Bilderdienst Brochure, Aug. 1983.

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