The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 02, 1993
Filed:
Feb. 21, 1991
Klaus Claar, Gechingen, DE;
Hans Deischl, Jettingen, DE;
Martin Lindmayer, Boblingen, DE;
Jurgen Moczygemba, Lichtenstein, DE;
Jergen Schrader, Stuttgart, DE;
Josef Schumacher, Reutlingen, DE;
Claus Topfer, Sindelfingen, DE;
Peter Robitschko, Sindelfingen, DE;
Mercedes-Benz AG, Stuttgart, DE;
Abstract
A method and device for the electrical control of a central locking system and of a mechanical securing device (that provides additional lock protection) for motor vehicles by a lock cylinder that interacts with at least two control switches. This method and device ensures a better utilization of the electrical control switches, in that, an unlocking control switch assigned to the unlocking of the central locking system and the deactivation of the mechanical securing device is switched in addition to a locking control switch assigned to the locking of the central locking system. If the lock cylinder is pivoted in the locking direction beyond its regular locking position, the resultant joint switching state of the two switching control devices is evaluated to activate the mechanical securing device.