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:
Jul. 31, 2001
Filed:
Nov. 23, 1999
Robert H. Holmes, Bonifay, FL (US);
Caterpillar Inc., Peoria, IL (US);
Abstract
A feller-buncher includes a first axle having a number of first wheels attached thereto and a second axle having a number of second wheels attached thereto. The feller-buncher also includes a first hydraulic motor operable to rotate the first axle and a second hydraulic motor operable to rotate the second axle. The feller-buncher also includes a first hydraulic pump operable to supply pressurized hydraulic fluid. Yet further, the feller-buncher includes a first flow sharing valve fluidly coupled to each of the first hydraulic pump, the first hydraulic motor, and the second hydraulic motor. The first flow sharing valve is configured to distribute the pressurized hydraulic fluid from the first hydraulic pump evenly between the first hydraulic motor and the second hydraulic motor, whereby the first axle and the second axle are driven at a substantially equal speed relative to one another. A method of operating a feller-buncher is also disclosed.