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:
Jun. 27, 1978
Filed:
Mar. 30, 1977
Dale H Unruh, Peoria, IL (US);
Caterpillar Tractor Co., Peoria, IL (US);
Abstract
An articulated vehicle comprising first and second vehicle frames, ground engaging devices on each of the frames for engaging the underlying terrain and supporting the vehicle for movement thereover, a coupling securing the frames together for relative rolling movement about a generally horizontal axis and for relative pivotal movement about a generally vertical axis, a double-acting hydraulic cylinder interconnecting the frames at a location on at least one frame remote from the coupling, a pair of fluid flow restrictions, one connected to each end of the cylinder, and a pair of accumulators, each connected to a corresponding one of the restrictions to receive from or direct hydraulic fluid to the corresponding end of the cylinder through the associated restriction to thereby resist and dampen relative rolling movement of the frames.