Patent · US Expired

Central locking device

US5168733A · kind A · utility

5Cited by

4References

3Claims

0Family size

Assignee

VDO Adolf Schindling AG · DE

Inventors

Klaus Rathmann · Frankfurt am Main, DE
Axel Schafer · Bad Soden, DE

Key dates

Filing date	Feb 20, 1992
Grant date	Dec 8, 1992
Priority date	—
Expiry date	Feb 20, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T70/65
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A system for the central locking of several closure points of an automotive vehicle with a remotely controlled setting member at each closure point has a central control circuit, as well as activating switches. Each switch has a neutral central position between "closed" and "open" positions at one or more closure points, by which the control circuit can be controlled for movement of all setting members in the same direction. A switch sequence of the invention provides for individual opening of a closure point by a process wherein the actuating switch must be brought into the "closed" position and then immediately into the "open" position.

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