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:
Dec. 22, 1992
Filed:
Feb. 08, 1991
Applicant:
Inventors:
John R McClure, New Holland, PA (US);
Larry D Hall, New Holland, PA (US);
Assignee:
Ford New Holland, Inc., New Holland, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B24B / ;
U.S. Cl.
CPC ...
51 57 ; 51246 ; 51252 ; 76 821 ;
Abstract
A sharpening apparatus is disclosed for a plurality of knives disposed in a cutterhead generating a cylindrical periphery when rotating. The apparatus comprises a grinding stone; a carriage for carrying the grinding stone in a grinding mode across the cutterhead in a line generally parallel to the axis of rotation of the cutterhead; a drive coupled to said carriage for effecting reciprocatory movement of the carriage; and means for applying constant pressure on the knives by the grinding stone during grinding operations such that the cutterhead retains its cylindrical periphery after repeated sharpening operations.