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:
Aug. 31, 2010
Filed:
Aug. 20, 2007
Robert a Smithson, Cedar Park, TX (US);
Brad P Pohl, Leander, TX (US);
Oronde J Armstrong, Austin, TX (US);
Donald C Miller, Fallbrook, CA (US);
Daniel J Dawe, Austin, TX (US);
Fernand a Thomassy, Liberty Hill, TX (US);
Matthew P Simister, Austin, TX (US);
Wesley R Poth, Leander, TX (US);
Jon M Nichols, Georgetown, TX (US);
Charles B Lohr, Austin, TX (US);
Robert A Smithson, Cedar Park, TX (US);
Brad P Pohl, Leander, TX (US);
Oronde J Armstrong, Austin, TX (US);
Donald C Miller, Fallbrook, CA (US);
Daniel J Dawe, Austin, TX (US);
Fernand A Thomassy, Liberty Hill, TX (US);
Matthew P Simister, Austin, TX (US);
Wesley R Poth, Leander, TX (US);
Jon M Nichols, Georgetown, TX (US);
Charles B Lohr, Austin, TX (US);
Fallbrook Technologies Inc., San Diego, CA (US);
Abstract
A continuously variable transmission (CVT) having a torsion disc for a CVT. The torsion disc includes a splined bore about its central axis, an annular recess formed in the disc for receiving the race of a bearing, and a raised surface for supporting a torsion spring. In one embodiment, the torsion disc includes a number of holes for receiving dowels that support a torsion spring. Load cam discs, a torsion disc, rolling elements, and a hub cap shell are configured to generate axial force, transmit torque, and manage reaction forces. In one embodiment, a splined input shaft and a torsion disc having a splined bore cooperate to input torque into the variator of the CVT. Among other things, various ball axles, axle-ball combinations, and reaction force grounding configurations are disclosed. In one embodiment, a CVT having axial force generation means at both the input and output elements is disclosed.