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:
Sep. 01, 2009
Filed:
Jul. 01, 2005
Mirko Schindler, Velbert, DE;
Andreas Van Den Boom, Essen, DE;
Helmut Schumacher, Coesfeld, DE;
Franz-josef Weber, Erkrath, DE;
Rainer Vaupel, Hattingen, DE;
Mirko Schindler, Velbert, DE;
Andreas Van Den Boom, Essen, DE;
Helmut Schumacher, Coesfeld, DE;
Franz-Josef Weber, Erkrath, DE;
Rainer Vaupel, Hattingen, DE;
Huf Hülsbeck & Fürst GmbH & C. KG, Velbert, DE;
Abstract
An electronic steering lock includes a power supply control unit and a locking assembly. The power supply control unit provides a supply voltage for locking the assembly via a ground supply line and a voltage supply line. The locking assembly is only supplied with a supply voltage and ground when a voltage with respect to ground is present on an ignition supply line, which is indicative of the ignition being switched off. The locking assembly includes a locking motor supplied with voltage and ground, whereby the ground supply of the locking motor is provided via a ground supply switching device. The locking assembly further includes a control circuit which controls the ground supply switching device. The control circuit produces a control signal which opens the ground supply switching device when the voltage on the additional input connection is indicative of the ignition being switched on.