Patent · US Expired

Device for detecting a cooking vessel positioned in a heating zone of a cooker or heater

US5296684A · kind A · utility

44Cited by

4References

16Claims

0Family size

Assignee

E.G.O. Elektro-Gerate Blanc u. Fischer · DE

Inventors

Willi Essig · Eppelheim, DE
Ivo Russ · Oberderdingen, DE

Key dates

Filing date	Feb 5, 1991
Grant date	Mar 22, 1994
Priority date	—
Expiry date	Feb 5, 2011

Classification

Technology area (CPC H)Electricity
CPC primaryH05B2213/05
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.