Patent · US Expired

Automotive headlamp - reflector combination

US4774636A · kind A · utility

10Cited by

3References

19Claims

0Family size

Assignee

Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · DE

Inventors

Manfred Gaugel · Fürstenfeldbruck, DE
Jurgen Vom Scheidt · Berlin, DE

Key dates

Filing date	Nov 18, 1987
Grant date	Sep 27, 1988
Priority date	—
Expiry date	Nov 18, 2007

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF21S41/19
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

To retain a double-ended elongated discharge lamp in position in an automve headlamp, and prevent breakage or loosening of a connection of a base of the lamp at one end with the apex (5) of the reflector, a lamp retention and guide arrangement (14) including narrow strips extending radially from a sleeve (18) towards the inner wall of the reflector (1) is located, the sleeve receiving the forward end of the lamp. Preferably, the forward end of the is jacketed by an inner forward sleeve element (18), to which also the forward lamp connection (20) is attached, to provide for electrical connection to the forward end of the lamp, for example by a cable (23) extending in a groove or duct of one of the strips (16), or by the strips themselves, if they are made of metal.

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