Patents by Inventor Erich Spieth

Erich Spieth 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).

  • Apparatus for keeping open the gap cut by a saw in a workpiece
    Patent number: 4143567
    Abstract: A saw, especially a circular metal saw, is equipped with a device for keeping open the gap cut by the saw blade. For this purpose two chucking members are arranged symmetrically to the right and left of the saw blade on one side of the workpiece and an abutment member is arranged on the opposite side of the workpiece and opposite the saw blade. Power drive means press the chucking members against the workpiece. The workpiece engaging elements of the chucking members may be pointed ridges or conical tips.
    Type: Grant
    Filed: September 12, 1977
    Date of Patent: March 13, 1979
    Assignee: Gustav Wagner Maschinenfabrik
    Inventors: Gerhard Kaiser, Erich Spieth