Patent · US Expired

Electric lamp having a current lead-in wire with a flattened U-shaped end segment

US6191526A · kind A · utility

0Cited by

3References

16Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Rolf Minder · Nattheim, DE
Rolf Kiesel · Aalen, DE

Key dates

Filing date	Dec 8, 1998
Grant date	Feb 20, 2001
Priority date	—
Expiry date	Dec 8, 2018

Classification

Technology area (CPC H)Electricity
CPC primaryH01K1/18
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to the fastening of incandescent coil filaments to current lead-in wires in electric lamps. One end (41) of the current lead-in wires is flattened and U-shaped. The U-shaped segment (41) of the current lead-in wire forms a gap-like seat (45) for a coiled incandescent coil-filament end (3a), the gap width of which is smaller than the outside diameter of the incandescent coil-filament end (3a).

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