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:
Feb. 04, 2003
Filed:
Jan. 02, 2002
Applicant:
Inventors:
John G. Berger, Landisville, PA (US);
Philip J. Ehrhart, Narvon, PA (US);
Assignee:
New Holland North America, Inc., New Holland, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A01D 3/400 ; G06F 1/900 ;
U.S. Cl.
CPC ...
A01D 3/400 ; G06F 1/900 ;
Abstract
The cutter head of a windrower may carry a sickle bar or a disc as the cutting element. Each type of cutting element requires a different drive power to obtain a given set point speed. To determine the type of cutter being used, the magnitude of the signal required to bring the cutting element to a given set point speed is measured and compared to limits defining first and second, non-overlapping, ranges of signal magnitudes, one range being typical of sickle bar operation and the other range being typical of disc operation.