Patents by Inventor Timothy J. Diehl

Timothy J. Diehl has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Grader blade with tri-grade insert assembly on the leading edge
    Patent number: 7665234
    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.
    Type: Grant
    Filed: September 14, 2007
    Date of Patent: February 23, 2010
    Assignee: Kennametal Inc.
    Inventors: Timothy J. Diehl, Don C. Rowlett, Terry A. Manway, Duane E. Carson, Jr., Andrew G. Mayer, Aniruddha S. Marathe
  • Grader blade with tri-grade insert assembly on the leading edge
    Publication number: 20090071042
    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.
    Type: Application
    Filed: September 14, 2007
    Publication date: March 19, 2009
    Inventors: Timothy J. Diehl, Don C. Rowlett, Terry A. Manway, Duane E. Carson, JR., Andrew G. Mayer, Aniruddha S. Marathe