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. 08, 2011
Filed:
Oct. 31, 2008
Norval P. Thomson, Dunlap, IL (US);
Steven A. Daniel, East Peoria, IL (US);
John V. Mount, Washington, IL (US);
Christopher E. Bright, Raleigh, NC (US);
Norval P. Thomson, Dunlap, IL (US);
Steven A. Daniel, East Peoria, IL (US);
John V. Mount, Washington, IL (US);
Christopher E. Bright, Raleigh, NC (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A steering system for steering a machine having opposing first and second sides with first and second pairs of rotatably mounted rear wheels disposed along the respective sides and at least one rotatably mounted, spaced front wheel. The system includes at least one first drive unit and at least one second drive unit for rotating the rear wheels of the respective pairs, and a steering input device that provides a signal to a controller that produces drive unit request signals to control the drive units to rotate the associated rear wheels along one side at rotational speeds greater than those along the other side to facilitate turning.