Device for detecting a cooking vessel positioned in a heating zo

Details Device for detecting a cooking vessel positioned in a heating zo Device for detecting a cooking vessel positioned in a heating zo

1991-02-05

1994-03-22

Paschall, Mark H.

Electric heating

Heating devices

With current connection and/or disconnection means

219506, 219453, 219452, 219491, 219497, 307117, H05B 102

Patent

active

052966844

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.

REFERENCES:
patent: 4013859 (1977-03-01), Peters
patent: 4016392 (1977-04-01), Kobayashi
patent: 4308443 (1981-12-01), Tucker
patent: 4334135 (1982-06-01), Smith

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