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:
Mar. 17, 2020
Filed:
Oct. 16, 2017
Deere & Company, Moline, IL (US);
John Vikram Gundupalli, Pune, IN;
DEERE & COMPANY, Moline, IL (US);
Abstract
A motor grader includes a work implement supported by a frame, a controller, and a circle drawbar assembly for controlling the work implement. The circle drawbar assembly includes a drawbar frame, a circle member coupled to the drawbar frame, and a drive arrangement coupled to the drawbar frame and the circle member for rotation thereof about the circle axis. The drawbar arrangement a first hydraulic cylinder and a second hydraulic cylinder pivotally coupled to the drawbar frame at a first location and a second location, respectively, on their respective first portions, and pivotally coupled to the circle member at a common third location on their respective second portions. A control arrangement extends and retracts the hydraulic cylinders in timed relationship to rotate the circle member about the circle axis.