Patent · US Expired

Headlight for motor vehicles

US5237489A · kind A · utility

4Cited by

1References

5Claims

0Family size

Assignee

Robert Bosch GmbH · DE

Inventors

Jürgen Stein · Wuppertal, DE
Bernhard Worner · Stuttgart, DE
Fred Delb · Bühl, DE
Thomas D. Weigold · Baden-Baden, DE
Friedrich Schmied · Pfullingen, DE
Peter Kusserow · Tegernsee, DE
Bernd Kaiser · Waldkirch, DE

Key dates

Filing date	May 26, 1992
Grant date	Aug 17, 1993
Priority date	—
Expiry date	May 26, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S362/802
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A headlight for motor vehicles has a reflector, a gas discharge lamp inserted in the reflector, an electrical pre-switching device arranged to supply the gas discharge lamp with high voltage, a lamp support via which the gas discharge lamp is inserted in the reflector, a detachable protective cap which covers the lamp support and the gas discharge lamp at their rear, an electrical line connected with the pre-switching device, and a switch arranged in the line and openable when the protective cap is removed so that the operation of the gas discharge lamp is prevented when the switch is opened.

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