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. 24, 2024
Filed:
May. 07, 2020
Bobst Bielefeld Gmbh, Bielefeld, DE;
Alexander Sudermann, Schloss Holte-Stukenbrock, DE;
Jörg Fortmann, Herford, DE;
BOBST BIELEFELD GMBH, Bielefeld, DE;
Abstract
A clamping shaft () for a rotationally driven part () is described. It comprises at least one fluid chamber () being located inside a shaft body () and being delimited by a piston () and a cylinder part (). Additionally, the fluid chamber () is delimited by an elastic clamping region () having a first diameter if the piston () and the cylinder part () are in a first relative position, and a second diameter if the piston () and the cylinder part () are in a second relative position. Furthermore, a preloading unit () is provided, biasing the piston () and the cylinder part () towards the second relative position. Moreover, a printing cylinder unit () of a printing machine is presented comprising such a clamping shaft (). Also, a method for operating a clamping shaft () is explained.