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:
Nov. 27, 2007
Filed:
Nov. 08, 2004
Gary L. Doll, Jackson Township, Stark County, OH (US);
Carl R. Ribaudo, Jackson Township, Stark County, OH (US);
Ryan D. Evans, Jackson Township, Stark County, OH (US);
Gary L. Doll, Jackson Township, Stark County, OH (US);
Carl R. Ribaudo, Jackson Township, Stark County, OH (US);
Ryan D. Evans, Jackson Township, Stark County, OH (US);
The Timken Company, Canton, OH (US);
Abstract
A process for improving the durability of a differential, where the differential has a pinion shaft and a pinion, the pinion shaft having a surface that contacts the surface of the inner diameter of the pinion. The process comprises bonding to the surface of the pinion shaft or the pinion or both, in the region of the interface between the pinion shaft and pinion, a coating having both a lower coefficient of friction and higher seizure resistance than that of the substance of the pinion shaft when in contact with the substance of the pinion.