Patent · US Expired

Apparatus for marking the operation of an induction coil by illumination

US6828530B2 · kind B2 · utility

10Cited by

4References

18Claims

0Family size

Assignee

E.G.O. Elektro-Geraetebau GmbH · DE

Inventors

Joerg Boegel · Oberderdingen, DE
Michael Stoeffler · Maulbronn, DE
Wilfried Schilling · Gondelsheim, DE

Key dates

Filing date	Nov 25, 2002
Grant date	Dec 7, 2004
Priority date	—
Expiry date	Dec 1, 2022

Classification

Technology area (CPC H)Electricity
CPC primaryH05B6/1218
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An illuminating apparatus for an induction coil of an induction cooking field is in the form of a &frac13; circular ring segment and carries conducting tracks, which form turns of a coil, which is connected to several LEDs. During induction coil operation an alternating voltage is induced in the coil and consequently the LEDs are supplied. With such an illuminating apparatus it is possible without additional wiring expenditure to illuminate an induction coil under a glass ceramic cooking field.

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