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. 16, 2013
Filed:
Dec. 10, 2008
Robert Henneberg, Ilmenau, DE;
Frank Partosch, Sand/Main, DE;
Simon Strack, Bamberg, DE;
Andreas Zietsch, Uechtelhausen-Zell, DE;
Robert Henneberg, Ilmenau, DE;
Frank Partosch, Sand/Main, DE;
Simon Strack, Bamberg, DE;
Andreas Zietsch, Uechtelhausen-Zell, DE;
ZF Friedrichshafen AG, Firedrichshafen, DE;
Abstract
Piston-cylinder unit includes a piston rod guided with freedom of axial movement in a cylinder, where at least part of the piston rod is enclosed by a piston rod protector, which is designed with at least limited axial elasticity. At least one retaining surface of the piston rod protector enters into a positive connection with at least one stop surface on the cylinder side, and an auxiliary assembly bevel allows the piston rod protector to buckle over a certain stroke range of the piston rod during the installation of the protector, so that the retaining surface snap-locks onto the stop surface on the cylinder side.