Patents by Inventor Hans-Olay Norman

Hans-Olay Norman 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).

  • Tool for breaking, cutting or working of solid materials
    Patent number: 4921310
    Abstract: A tool for breaking, cutting, and working solid materials includes a rearwardly extending shaft adapted to be inserted into the bore of a holder. The shaft includes an annular groove located adjacent a rearmost end thereof. A cylindrical clip is mounted on the shaft for retaining the tool within the holder. The clip includes a longitudinal slot extending longitudinally completely therethrough. A rear free end of the clip is inwardly bent into the groove of the shaft to oppose longitudinal forward movement of the shaft relative to the clip.
    Type: Grant
    Filed: June 13, 1988
    Date of Patent: May 1, 1990
    Inventors: Jan-Gunnar Hedlund, Lennart Hansson, Hans-Olay Norman