Patent · US Active

Anti-dazzle device with a filament

US8164240B2 · kind B2 · utility

0Cited by

3References

10Claims

0Family size

Assignee

OSRAM GmbH · DE

Inventors

Frank Auer · Herbrechtingen, DE
Gerhard Behr · Riedlingen, DE
Peter Helbig · Sontheim, DE
Christian Seichter · Herbrechtingen, DE
Klaus Wittmann · Maurepas, FR
Sascha Zelt · Beimerstetten, DE

Key dates

Filing date	Dec 5, 2007
Grant date	Apr 24, 2012
Priority date	—
Expiry date	Feb 26, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH01K1/26
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a dipping cap comprising a filament for a dual-filament lamp. The dimension between an outlet of an outgoing section of the filament, on the side of the base, and the point on the outgoing section of the filament, arranged opposite the outgoing section of the filament on the side of the base and welded to the dipping cap, measures more than approximately 5.2 mm and less than 9.7 mm, and the dimension between the outlet of the outgoing section of the filament, on the side of the base, and the front surface of the dipping cap, which is adjacent to the outgoing section of the filament, welded to the dipping cap, measures more than approximately 5.9 mm and less than 11.9 mm.

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