Patent · US Expired

Radiant element

US5004892A · kind A · utility

4Cited by

4References

7Claims

0Family size

Assignee

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

Inventors

Gerhard Goessler · Oberderdingen, DE
Eugen Wilde · Knittlingen, DE
Rolf Seeburger · Eppingen, DE

Key dates

Filing date	Nov 29, 1989
Grant date	Apr 2, 1991
Priority date	—
Expiry date	Nov 29, 2009

Classification

Technology area (CPC H)Electricity
CPC primaryH05B3/72
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A radiant element (11) contains a light radiator, e.g. a substantially circular halogen tubular lamp (15) and a dark radiator (18) in the form of standard open, electric radiant heating coils. For damping or attenuating the high starting or transient current of the light radiator (15), a damping resistor (21) is connected in series therewith, namely during the warming-up phase of the light radiator (15). Following the rise of the resistance of the light radiator due to its heating or after a certain time lapse, a damping switching device (22) disables the series resistor by shorting across it.

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