Device for detecting a cooking vessel positioned in a heating zone of a cooker or heater
AssigneeE.G.O. Elektro-Gerate Blanc u. Fischer
InventorsWilli Essig, Ivo Russ
Life of this patent
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Abstract
The device comprises a sensor supplying a sensor signal which varies as a result of the placement of a cooking vessel in a heating zone of a heating appliance. The device includes evaluating circuit which, as a function of the sensor signal, supplies an output signal. The evaluating circuit produces the output signal as a function of the rate of change of the sensor signal to indicate the presence or absence of cookware in the heating zone of the heating appliance.
Claims16
Device for detecting a cooking vessel positioned in a heating zone of an appliance of a kind including cooking and heating appliances, the device comprising a sensor supplying a sensor signal, said sensor signal having a sensor signal characteristic dependent on the placement and removal of the cooking vessel in said heating zone;
- and evaluating means which, as a function of the sensor signal characteristic, supply an output signal for controlling the energization of the appliance, the evaluating means producing the output signal as a function of the rate of change of the sensor signal characteristic.
Device according to any of the preceding claims, wherein the evaluating means operate in analog manner and include sensor signal differentiation means.
Dependencies are inferred from the claim text.