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:
Jun. 20, 2017
Filed:
Feb. 24, 2016
Applicant:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, JP;
Inventor:
Daisuke Okamoto, Fujinomiya, JP;
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
F16H 1/36 (2006.01); F16H 3/66 (2006.01); F16H 55/08 (2006.01);
U.S. Cl.
CPC ...
F16H 3/663 (2013.01); F16H 1/36 (2013.01); F16H 55/0873 (2013.01); F16H 2200/202 (2013.01);
Abstract
A Ravigneaux planetary gear device includes a long pinion gear and a short pinion gear. A tooth of each of the long pinion gear and the short pinion gear has an end surface with curvature from an inner circumference side toward an outer circumference side of each of the long pinion gear and the short pinion gear and toward a center in a tooth width direction.