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:
Oct. 21, 2008
Filed:
May. 14, 2004
Umberto Rocca, Herzogenaurach, DE;
Norbert Metten, Aurachtal, DE;
Umberto Rocca, Herzogenaurach, DE;
Norbert Metten, Aurachtal, DE;
Schaeffler KG, Herzogenaurach, DE;
Abstract
A rotating passage feed system for admitting pressure means into two machine parts (hub part (), shaft ()) which rotate relative to one another about a common axis. Conduits () that convey the pressure means are located in the shaft () and are joined to pressure means connections () via tapped holes while a connecting part () in which ring channels () are provided is also joined thereto. A central sleeve () is joined to the connecting part () in a non-rotatable manner. The connecting part () and the central sleeve () are produced in an inexpensive manner as lightweight structure formed from sheet metal through a shaping process.