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. 20, 2010
Filed:
Dec. 19, 2006
Theodor Gassmann, Siegburg, DE;
Mark Schmidt, Königswinter, DE;
Andreas Pottharst, Königswinter, DE;
Kurt Müller, Merzenich, DE;
Theodor Gassmann, Siegburg, DE;
Mark Schmidt, Königswinter, DE;
Andreas Pottharst, Königswinter, DE;
Kurt Müller, Merzenich, DE;
GKN Driveline International GmbH, Lohmar, DE;
Abstract
A friction coupling assembly includes: a ball ramp assembly () with two coaxial discs (), wherein the faces () of the two discs () each have ball grooves () of increasing depth, wherein pairs of opposed ball grooves hold balls to axially support the two discs (); a plate package () arranged coaxially relative to the discs () and having outer plates () for fixing to a coupling carrier () and inner plates () for fixing to a coupling hub (); and a plate spring () for introducing force into the plate package (), the plate spring () is arranged coaxially relative to the discs (), is axially pretensioned and, functionally, is arranged in series with the plate package ().