Patents by Inventor Michael A. Kendhammer

Michael A. Kendhammer 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).

  • Steel and stone blade sharpening device
    Patent number: 6676490
    Abstract: The present invention provides a blade sharpening and edge uncurling device for sharpening dull blades. The device includes a handle at one end and a conical steel for uncurling edges at an opposite end. A threaded stone retaining shaft bridging between the handle and the steel maintains a circumscribing sleeved stone section in position for sharpening the blades. When the sleeved stone section needs to be replaced, the threaded stone retaining shaft is simply unthreaded to expose the stone for removal and replacement.
    Type: Grant
    Filed: January 2, 2003
    Date of Patent: January 13, 2004
    Inventor: Michael A. Kendhammer