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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.:

US 9732848 B1

PDFFull Text
Date of Patent:
Aug. 15, 2017

Filed:

May. 29, 2015

Continuously variable transmission

Applicant:

Fallbrook Intellectual Property Company Llc, Cedar Park, TX (US);

Inventors:

Donald C. Miller, Encinitas, CA (US);

David J. Allen, Soquel, CA (US);

Robert A. Smithson, Cedar Park, TX (US);

Assignee:

Fallbrook Intellectual Property Company LLC, Cedar Park, TX (US);

Attorney:

Knobbe, Martens, Olson & Bear LLP

Primary Examiner:

Dirk Wright

Int. Cl.
CPC ...
F16H 15/48 (2006.01); F16H 61/664 (2006.01); B62M 9/08 (2006.01); B62M 11/04 (2006.01); B62M 11/14 (2006.01); F16H 15/28 (2006.01); F16H 15/40 (2006.01); F16H 15/50 (2006.01); F16H 15/52 (2006.01); F16H 37/08 (2006.01); F16H 63/06 (2006.01); F16H 37/10 (2006.01);
U.S. Cl.
CPC ...
F16H 61/6649 (2013.01); B62M 9/08 (2013.01); B62M 11/04 (2013.01); B62M 11/14 (2013.01); F16H 15/28 (2013.01); F16H 15/40 (2013.01); F16H 15/50 (2013.01); F16H 15/503 (2013.01); F16H 15/52 (2013.01); F16H 37/086 (2013.01); F16H 37/084 (2013.01); F16H 37/0853 (2013.01); F16H 63/067 (2013.01); F16H 2037/088 (2013.01); F16H 2037/101 (2013.01); Y10T 29/49464 (2015.01); Y10T 408/65 (2015.01);
Abstract

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.

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