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:
Oct. 16, 2018
Filed:
Sep. 18, 2015
Deere & Company, Moline, IL (US);
Jonathan R. Hunt, Garnavillo, IA (US);
DEERE & COMPANY, Moline, IL (US);
Abstract
A double cut control system and method are disclosed for a felling head having a saw disc. The felling head may be positioned by a knuckle boom, which includes a hoist boom and a stick boom coupled by a knuckle and positioned by hydraulic cylinders actuated by a hydraulic pump and hydraulic control valves. The control system has an operator input device for input of operator commands including a double cut control input command. Position sensors provide position values for the knuckle boom and the felling head. At least one controller receives the operator commands and position values. After receiving the double cut control input command, the controller generates a first cut control signal to direct flow of hydraulic fluid to the hydraulic cylinders to position the knuckle boom to advance the felling head in a single fore-aft direction a set distance corresponding to a partial depth cut.