Patents by Inventor Bruce R. Grubb

Bruce R. Grubb 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).

  • Two-piece rotatable cutting bit
    Patent number: 5261499
    Abstract: A two-piece rotatable cutting bit which comprises a shank and a nose. The shank has an axially forwardly projecting protrusion which carries a resilient spring clip. The protrusion and spring clip are received within a recess in the nose to rotatable attach the nose to the shank.
    Type: Grant
    Filed: July 15, 1992
    Date of Patent: November 16, 1993
    Assignee: Kennametal Inc.
    Inventor: Bruce R. Grubb