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. 23, 2010
Filed:
Sep. 14, 2007
Timothy J. Diehl, Bedford, PA (US);
Don C. Rowlett, Bedford, PA (US);
Terry A. Manway, Monroeville, PA (US);
Duane E. Carson, Jr., Hollidaysburg, PA (US);
Andrew G. Mayer, Sarasota, FL (US);
Aniruddha S. Marathe, Bentonville, AR (US);
Timothy J. Diehl, Bedford, PA (US);
Don C. Rowlett, Bedford, PA (US);
Terry A. Manway, Monroeville, PA (US);
Duane E. Carson, Jr., Hollidaysburg, PA (US);
Andrew G. Mayer, Sarasota, FL (US);
Aniruddha S. Marathe, Bentonville, AR (US);
Kennametal Inc., Latrobe, PA (US);
Abstract
A grader blade includes a grader blade body that has a recess in a bottom edge, and a tri-grade insert assembly is received within the recess. The tri-grade insert assembly includes a leading insert, a mediate insert and a trailing insert. The leading insert has an impact wear resistance and fracture wear resistance greater than the mediate insert and the trailing insert. The trailing insert has an abrasion wear resistance and down-pressure wear resistance greater than the leading insert and the mediate insert. The mediate insert has an impact wear resistance and fracture wear resistance greater than the trailing insert and an abrasion wear resistance and down-pressure wear resistance greater than the leading insert.