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:
Jul. 14, 1998
Filed:
Jan. 16, 1997
Robert A Wagstaff, Lancaster, PA (US);
New Holland North America, Inc., New Holland, PA (US);
Abstract
A rotatable forage harvester cutterhead having a shaft with a drum assembly coaxially secured to the shaft. A plurality of uniquely configured knives extend from the outer cylindrical surface of the drum, each with a cutting edge length less than half the axial length of the cylindrical surface. The knives are supported by assemblies having a solid mounting block secured to the outer cylindrical surface, which mounting blocks have a mounting surface extending at an acute angle to a radial plane extending from the shaft. Fasteners secure the knives to the mounting surfaces with the cutting edges of the knives extending in the direction of rotation of the cutterhead and generating a cylinder as the cutterhead rotates. The knife designs enhance efficiencies by providing a rake angle, formed by the bottom surface of the knife and the radial plane, that is greater than the acute angle.