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, 1992
Filed:
Jun. 27, 1991
Timothy P Nettles, Carthage, NY (US);
David E Dillon, Black River, NY (US);
Norman R Luffman, Watertown, NY (US);
James C Marti, Lowville, NY (US);
Arthur A Shattuck, Edwards, NY (US);
Milton E Howard, Lowville, NY (US);
Carthage Machine Company, Birmingham, AL (US);
Abstract
A knife holder for a rotary type wood chipper is in the form of a segment occupying a segmental portion of the proximal side of the cutting disk and extending to a chip slot of an adjacent knife from its associated knife assembly. The knife holder has a hardened helicoid proximal wear surface that faces the logs that are fed into the chipper. Each knife holder is formed of a base plate which removably mounts onto the disk and a wear plate that is replaceably attached onto the proximal side of the base plate. The wear plate is mechanically attached to the base plate by set screws and is also attached by a weld that runs along a peripheral chamfer. When the hardfacing surface on the wear plate becomes eroded, the wear plate can be removed and replaced.