Patents by Inventor James E. Rutherford

James E. Rutherford 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).

  • Drill bit, hard member, and bit body
    Patent number: 6595305
    Abstract: A rotary drill bit for penetrating earth strata wherein the drill bit includes a drill bit body that has an axial forward end. The drill bit body has a hard insert, which is preferably monolithic, that is affixed to the drill bit body at the axial forward end thereof. The hard insert presents at least three discrete leading cutting edges for cutting the earth strata.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: July 22, 2003
    Assignee: Kennametal Inc.
    Inventors: Curnie A. Dunn, Phillip W. Haga, Ted R. Massa, Douglas E. Bise, Gary J. Condon, Stephen T. Belsheim, James E. Rutherford
  • Fire extinguisher wall mounted cabinet
    Patent number: D252121
    Type: Grant
    Filed: September 26, 1977
    Date of Patent: June 19, 1979
    Assignee: Plastech Research, Inc.
    Inventor: James E. Rutherford