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:
Mar. 13, 2012
Filed:
Dec. 12, 2008
Andreas Triller, Bühl, DE;
Andreas Englisch, Bühl, DE;
Peter Tenberge, Chemnitz, DE;
Rico Resch, Wilsdruff, DE;
Andreas Triller, Bühl, DE;
Andreas Englisch, Bühl, DE;
Peter Tenberge, Chemnitz, DE;
Rico Resch, Wilsdruff, DE;
Schaeffler Technologies AG & Co. KG, Herzogenaurach, DE;
Abstract
A planetary transmission having a continuously variable transmission ratio. The transmission includes two sun wheels having sun wheel circumferential surfaces, and that are axially spaced and rotatable independently of each other around the same axis of rotation. A ring wheel is situated on the same axis as the sun wheels and has an internal circumferential surface. Planet wheels are provided having planet wheel circumferential surfaces that are in frictional contact with the internal circumferential surface of the ring wheel and the sun wheel circumferential surfaces. A web element is also provided, and the planet wheels are each rotatable about an associated planet wheel axle, which is guided in the web element so that it is movable in the radial direction relative to the transmission longitudinal axis.