Patent · US Expired

Electric radiant element with an active sensor for cooking vessel detection

US6765179B2 · kind B2 · utility

5Cited by

6References

21Claims

0Family size

Assignee

E.G.O. Elektro-Geraetebau GmbH · DE

Inventors

Eugen Wilde · Knittlingen, DE
Erich John · Augsburg, DE
Wilfried Schilling · Gondelsheim, DE

Key dates

Filing date	Jul 9, 2002
Grant date	Jul 20, 2004
Priority date	—
Expiry date	Sep 24, 2022

Classification

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

Abstract

An electric radiant heater (11, 111) is provided having an active sensor (21, 121) for detecting the position of a cooking vessel on a glass ceramic plate over the radiant heater (11, 111). The sensor (21, 121) is mad from electrically conductive material and is part of an inductive resonant circuit of a control operating by resonant circuit detuning. It also covers a heating zone (17, 117) of the radiant heater (11, 111). The sensor (21, 121) runs substantially linearly and, unlike conventional sensor coils, has a loopless construction. It is e.g. possible to stretch a wire (121) or also to use the tube (21) of a rod regulator.

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