Patents by Inventor Norman S. King

Norman S. King 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).

  • Mine roadway support stilt
    Patent number: 4382721
    Abstract: A mine roadway support stilt includes, on two opposing faces thereof, a plurality of deformable, longitudinally extending indentations and, on the remaining faces, additional indentations to inhibit improper insertion of the I-beam joist support normally received in said stilt.
    Type: Grant
    Filed: July 1, 1981
    Date of Patent: May 10, 1983
    Assignee: Holywell Engineering Limited
    Inventor: Norman S. King