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. 05, 2013
Filed:
Jun. 01, 2011
Mylvaganam Arulraja, Cary, NC (US);
Michael S. Freberg, Raleigh, NC (US);
Leslie L. Weaver, Jr., Raleigh, NC (US);
Michael C. Layko, Apex, NC (US);
Jeffrey M. Parker, Fuquay-Varina, NC (US);
Michael Bottom, Holly Springs, NC (US);
Mylvaganam Arulraja, Cary, NC (US);
Michael S. Freberg, Raleigh, NC (US);
Leslie L. Weaver, Jr., Raleigh, NC (US);
Michael C. Layko, Apex, NC (US);
Jeffrey M. Parker, Fuquay-Varina, NC (US);
Michael Bottom, Holly Springs, NC (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A machine is provided. The machine has a forward direction of travel and includes a frame, at least one lift arm, a first torsion axle assembly, an undercarriage, and an endless track. The lift arm is pivotally attached to the frame. The first torsion axle assembly is attached to the frame and includes a first torsion arm, a first torsion shaft, and a first axle, with the first torsion shaft and the first axle extending from the first torsion arm. The undercarriage is attached to the first torsion axle assembly and the endless track encircles the undercarriage. One of the first torsion shaft and the first axle is attached to the frame and the other of the first torsion shaft and the first axle is attached to the undercarriage. The first torsion arm extends upward from the frame at an angle between 90 and 180 degrees from the forward direction of travel.