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:
Jan. 22, 2013
Filed:
Dec. 03, 2010
Robert Jackson, Edwards, IL (US);
Robert Jackson, Edwards, IL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A final drive assembly is used to support a track chain on a track type machine. The final drive assembly includes a sprocket hub mounted for rotation on a fixed hub. A seal is positioned between the fixed hub and the sprocket hub. The fixed hub and the sprocket hub define a seal protection passageway that extends between an outer surface and the seal. The seal protection passageway includes a labyrinth located between an annular attachment flange and the seal along a rotation axis of the sprocket hub. The outer surface includes a valley between a sprocket mount of the sprocket hub and a machine mount of the fixed hub. The seal protection passageway opens at a greater radius than a minimum radius of the valley.