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. 24, 2009
Filed:
Mar. 10, 2008
Thomas Weckerling, Bonn, DE;
Orkan Eryilmaz, Lohmar, DE;
Thomas Weckerling, Bonn, DE;
Orkan Eryilmaz, Lohmar, DE;
GKN Driveline International GmbH, Lohmar, DE;
Abstract
A constant velocity universal ball jointhaving first and second outer ball tracksand first and second inner ball tracksforming first pairs of trackswhich widen in a first axial direction Ri(α), and forming second pairs of trackswhich widen in a second axial direction Ri(β). Ballsare guided in the pairs of tracks and have centers Z positioned on a pitch circle radius PCR around a joint centre M. A ball cageholds the ballsin a common central plane E on to the angle-bisecting plane when the joint is articulated. There is provided an axial clearance permitting a relative axial displacement S wherein, when in the aligned condition, the ratio between the axial clearance S and the pitch circle radius PCR ranges between 0.01 and 0.09 (0.01<S/PCR<0.09).