Patents by Inventor Fredrick Eugene Harp

Fredrick Eugene Harp 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).

  • Triple corner boring bar
    Patent number: 4030843
    Abstract: A boring bar having a body with standard shank portion at one end and a fluted, adjustable portion at the other end thereof which rigidly supports two standard triangular carbide tips. The tips are adjustable simultaneously to the desired size by means of an accurately shaped and angled adjusting plug together with accurate angles formed in the fluted end of the bar itself.
    Type: Grant
    Filed: January 12, 1976
    Date of Patent: June 21, 1977
    Inventor: Fredrick Eugene Harp