Method and device for detecting the presence of a body, for exam

Details Method and device for detecting the presence of a body, for exam Method and device for detecting the presence of a body, for exam

1993-01-28

1995-06-13

Jeffery, John A.

Electric heating

Heating devices

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

219452, 219518, 338316, F24C 1510, G05D 2319, H05B 368, H05B 374

Patent

active

054245125

ABSTRACT:
A method and apparatus for detecting the presence of a saucepan on the hob plate of a glass ceramic cooking hob associated with a heating element includes measuring the variation in a physical characteristic of an electrical resistive element positioned between the heating element and the hob plate of the glass ceramic cooking hob caused by a body or saucepan being placed on the hob, the variation being evaluated by control means which, on the basis thereof, controls the heating element to change its operating parameters.

REFERENCES:
patent: 4334135 (1982-06-01), Smith
patent: 5136277 (1992-08-01), Civanelli et al.
patent: 5296684 (1994-03-01), Essig et al.

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