Patents by Inventor Clarence H. Ludwig

Clarence H. Ludwig 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).

  • Patent number: 4119004
    Abstract: A slicing band consists of a base and an integral reduced cross section shank which is formed continuously throughout the length of the band. At the end of the shank is a scalloped cutting edge with inclined faces which intersect at the cutting edge of the scallops. The blade is constructed from an apparatus which utilizes two rotatable grinding wheels each with a flat annular grinding surface adapted to contact first one side of the blade and then the opposite side of the blade while the blade is yieldably retained against lateral movement and to effect material reduction to form the reduced cross section shank. The grinding wheel consists of cubic boron nitride, capable of performing material removal without burning or compromising the strength or other material requirements of the blade.
    Type: Grant
    Filed: July 25, 1977
    Date of Patent: October 10, 1978
    Inventor: Clarence H. Ludwig