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:
Aug. 13, 2002
Filed:
Jan. 13, 2000
Applicant:
Inventor:
Steffen Clauss, Dellfeld, DE;
Assignee:
Deere & Company, Moline, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01D 7/508 ;
U.S. Cl.
CPC ...
A01D 7/508 ;
Abstract
A forage harvester includes a cutting drum equipped with a plurality of cutting knives. A grinding arrangement is provided for sharpening the knives. Different embodiments of a wear sensing device are provided which include sensing circuit elements that are either embedded in the sharpening stone or carried by the backing plate of the sharpening stone assembly. In either case, the sensing circuit elements are located so as to make or break a circuit when a predetermined amount of the sharpening stone has worn away.