Patents by Inventor Frank E. Brimhall

Frank E. Brimhall 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).

  • Fence rail and method and apparatus of manufacturing the same
    Patent number: 5025842
    Abstract: A machine for milling fence rails and the like having a pair of opposed milling units, each having a cutter head with a conically shaped inner surface, cutting knives arranged to taper material inserted into the heads to the shape of the inner surface and to form a projecting tine that is also tapered.
    Type: Grant
    Filed: January 13, 1986
    Date of Patent: June 25, 1991
    Inventor: Frank E. Brimhall