Patent · US Expired

Direction indicator and hazard warning device for motor vehicles

US4821018A · kind A · utility

3Cited by

4References

6Claims

0Family size

Assignee

Daimler-Benz AG · DE

Inventors

Raimund Leistenschneider · Sindelfingen, DE
Klaus Neuffer · Eppelheim, DE
Egon Frey · Sindelfingen, DE

Key dates

Filing date	Sep 4, 1987
Grant date	Apr 11, 1989
Priority date	—
Expiry date	Sep 4, 2007

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB60Q1/385
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

In a direction indicator and hazard warning device for motor vehicles, a time sequence control is provided, which, during hazard warning operation with a closed driving/ignition switch, allows direction indicator signals to be superimposed and, when the direction indicator signals are switched on, the hazard warning signal to be superimposed. The signal first selected is automatically generated once again after the added signal has been switched off. If, however, the driving/ignition switch is closed with the hazard warning switch and the direction indicator switch closed, the device causes the hazard warning signal to continue to be generated.

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