07686729 is referenced by 94 patents and cites 288 patents.

A variable speed transmission having a plurality of tilting balls and opposing input and output discs is illustrated and described that provides an infinite number of speed combinations over its transmission ratio range. The use of a planetary gear set allows minimum speeds to be in reverse and the unique geometry of the transmission allows all of the power paths to be coaxial, thereby reducing overall size and complexity of the transmission in comparison to transmissions achieving similar transmission ratio ranges.

Title
Continuously variable transmission
Application Number
12/28732
Publication Number
7686729 (B2)
Application Date
February 8, 2008
Publication Date
March 30, 2010
Inventor
Robert A Smithson
Cedar Park
TX, US
David J Allen
Soquel
CA, US
Donald C Miller
Fallbrook
CA, US
Agent
Knobbe Martens Olson & Bear
Assignee
Fallbrook Technologies
CA, US
IPC
F16H 15/48
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