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. 25, 2003
Filed:
Feb. 28, 2002
Timothy John Trelstad, Ottumwa, IA (US);
Paul David Parker, Ottumwa, IA (US);
Darin Ledru Roth, Ottumwa, IA (US);
Kerry Stephen Martin, Springfield, IL (US);
Donald Wayne Demorest, Ottumwa, IA (US);
Eric Ryan Lang, Donnellson, IA (US);
David Vincent Rotole, Ottumwa, IA (US);
Deere & Company, Moline, IL (US);
Abstract
A large rectangular baler includes pick-up and packer rotors, a pivotable stuffer, a plunger head, a knotter shaft and a needle yoke, and tension panels that are all driven hydraulically and independently controlled through electrically controlled valves that actuate the various hydraulic power devices used to power the various functions. An electronic control unit is coupled to each of the control valves and receives feedback signals from the controlled functions which are compared with values representing desired function results so as to further control the valves to attain the desired results. In addition to the feedback signals from the powered functions, signals from a bale length sensor and a ground speed sensor are also coupled to the electronic control unit for use in controlling the powered functions.