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:
Jul. 05, 2016
Filed:
May. 02, 2013
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Christian Popp, Kressbronn, DE;
Stefan Meschenmoser, Friedrichshafen, DE;
Thilo Schmidt, Meckenbeuren, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A device for actuating a locking mechanism, in particular for actuating a parking lock of a vehicle having an automatic transmission. The device comprises a piston which axially moves, a retaining device which is self-activating when the piston is in an axial position in which the locking mechanism is open to hold the piston in the axial position in which the locking mechanism is open, and an actuating device for actuating a release element, which deactivates the retaining device. To hold the piston in an axial position in which the locking mechanism is closed, the retaining device is self-activating, and can be deactivated to enable the piston to move, starting from the axial position in which the locking mechanism is closed, to the axial position in which the locking mechanism is open.