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:
Apr. 02, 2019
Filed:
Sep. 15, 2015
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Achim Thomae, Bergrheinfeld, DE;
Helmut Baalmann, Bergrheinfeld, DE;
Wilhelm-Heinrich Broocks, Kürnach, DE;
Oswald Lichtlein, Bergtheim, DE;
Steffen Heyn, Niederwerrn, DE;
Andreas Förster, Schweinfurt, DE;
Joachim Gajek, Möhrendorf, DE;
Robert Pradel, Röthlein, DE;
Anke Sonnemann, Schweinfurt, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
A vibration damper with a piston, a piston rod fastened to the piston, a working chamber divided by the piston into a first working chamber and second working chamber, and a generator drivable by movement of the piston rod. The damping force of the vibration damper can be influenced by energization of the generator. An energizable component part is provided that short-circuits the windings of the generator when unenergized and cancels the short circuit when energized.