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:
Feb. 19, 2013
Filed:
Jun. 11, 2009
Gerald P. Fox, Massillon, OH (US);
Randy P. Kruse, North Canton, OH (US);
James N. Maloof, Clinton, OH (US);
Gerald P. Fox, Massillon, OH (US);
Randy P. Kruse, North Canton, OH (US);
James N. Maloof, Clinton, OH (US);
The Timken Company, Canton, OH (US);
Abstract
An epicyclic gear system (A) includes helical sun and ring gears () and helical planet pinions () located between and engaged with the sun and ring gears. The gear system also includes a carrier () having an end wall () and flexpins () cantilevered from the end wall and extended into the planet pinions. Each flexpin at its end remote from the end wall carries a sleeve () that extends back over the flexpin where it is spaced from the flexpin. The planet pinion for the flexpin rotates around the sleeve on a bearing (). The arrangement is such that the flexpin will flex adjacent to the carrier end wall circumferentially along the pitch circle of the carrier in one direction and circumferentially in the opposite direction adjacent to attachment of the sleeve. But the helical gear imparts a couple to the planet pinion that seeks to tilt the sleeve radially toward or away from the main axis of the system. A deflection inhibitor (I) lies between each flexpin and the sleeve surrounding it to prevent the radial deflection.