Patents by Inventor Mark S. Granger

Mark S. Granger 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: 5887842
    Abstract: A sign post is formed of a lower support component for anchoring within terrain, leaving an exposed upper portion at the surface of such terrain. The support component includes an array of longitudinally regularly spaced apertures. An upper support component having the same regular spacing of apertures is attached to the lower component at the exposed portion through the utilization of a splicing technique. The splice is formed as a stress transfer component having two strategically positioned boltways therein. These boltways are spaced apart longitudinally a distance representing an even integer of the upper and lower component aperture spacings. The boltways are configured having a small threaded region adjacent one surface. Bolts having a threadless shank and threaded region therebelow are slidably inserted through one of the components into the stress transfer whereupon they are rotated for preassembly engagement with the minor threaded regions of the stress transfer component.
    Type: Grant
    Filed: October 13, 1997
    Date of Patent: March 30, 1999
    Inventor: Mark S. Granger
  • Patent number: 5794910
    Abstract: A sign post is formed of a lower support component for anchoring within terrain, leaving an exposed upper portion above the surface of such terrain. The support component includes an array of longitudinally regularly spaced apertures. An upper support component formed having the same cross-sectional configuration and regularly spaced apertures is attached to the lower component at the exposed portion through the utilization of a splicing technique. The splice is formed as a stress transfer bar having two strategically positioned bores therein. These bores are spaced apart longitudinally a distance representing an even integer of the upper and lower component aperture spacing. Breakaway bolts are positioned through one of the components and into and through the stress transfer bar, and then the second component is attached with nuts being positioned and tightened over the bolts as they extend through the stress transfer bar.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: August 18, 1998
    Inventor: Mark S. Granger
  • Patent number: 5125194
    Abstract: A sign post constructed of an upper channel section nested with a lower channel section at a frangible joint designed so when the sign post is struck by a vehicle, failure of the joint will occur in a predictable and consistent manner. The channel sections are preferably formed of stock channel material having a transverse cross-section in the general shape of a hat, including a longitudinally extending flat center web and outwardly divergent side walls. When the channel sections are nested together, the side walls of adjoining sections are in contact with one another, while the web portions remain spaced apart. In the present invention, the channel sections are connected together with a fastener in combination with a spacer that is engaged between the web portions to provide a reliable and strong breakaway connection.
    Type: Grant
    Filed: May 8, 1991
    Date of Patent: June 30, 1992
    Assignee: Marion Steel Company
    Inventor: Mark S. Granger