Patents by Inventor Brian K. Widener

Brian K. Widener 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).

  • Rotatable cutting bit and bit washer therefor
    Patent number: 6113195
    Abstract: A cutter tool comprises a tool holder, a cutting bit mounted in a bore of the tool holder, and a washer disposed between the tool holder and the cutting bit. The washer is a conical (Belleville) washer which makes annular line contact with a shoulder of the cutting bit, and with an edge of the bore of the tool holder, in order to effectively seal-out fines from the bore.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: September 5, 2000
    Assignee: Sandvik AB
    Inventors: Greg D. Mercier, Gary A. Fuller, Brian K. Widener, Chris J. McSharry