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:
Nov. 16, 2010
Filed:
Aug. 18, 2006
Holger Beyer, Pfarrweisach, DE;
Bernd Christau, Luelsfeld, DE;
Heiko Erfurth, Walldorf, DE;
ZF Friedrichshafen AG, Friedrichshafen, DE;
Abstract
The invention relates to a vibration damper, comprising a cylinder () that is filled with damping medium, in which a piston rod () is guided in an axially movable manner by a piston rod guide (), the lateral surface of the piston rod guide lying against an inner wall of the cylinder () and the piston rod guide being sealed in the direction of a working area at the piston rod end, the area of contact between the lateral surface () and the cylinder () relative to the working area () at the piston rod end having on the other side of the sealing area () at least one outlet () in the direction of an outer end face () of the vibration damper.