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:
Aug. 07, 1979
Filed:
Jun. 13, 1977
William F Fisher, Decatur, IL (US);
Paul C Rosenberger, Decatur, IL (US);
Caterpillar Tractor Co., Peoria, IL (US);
Abstract
A differential including a housing having an internal surface defining a chamber, a drive gear secured to the housing externally thereof, a pair of side gears within the housing, a spider within the housing and between the side gears and extending into the housing at spaced locations on the internal surface, pinions journalled on and carried by the spider within the housing and engaged with the side gears, elongated recesses in the internal surface at the spaced locations, and noncircular thrust washers interposed between the internal surface and the corresponding one of the pinions, the washers being a size and shape to be tightly received within the recesses and about the sides thereof for a substantial distance to fix the washer against rotation relative to the housing.