Patents by Inventor Francis E. Flaherty

Francis E. Flaherty 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).

  • Method and apparatus for sharpening metal blades
    Patent number: 4809464
    Abstract: Apparatus is provided for forming sharp edges on a flat metal blade strip. The apparatus is comprised of two series of synchronously rotated enmeshed abrasive wheels which successively contact the blade strip in opposite directions to remove the burr that ordinarily forms in the course of sharpening techniques.
    Type: Grant
    Filed: March 24, 1988
    Date of Patent: March 7, 1989
    Inventor: Francis E. Flaherty