Patents by Inventor Richard C. Campbell, Jr.

Richard C. Campbell, Jr. 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: 7461487
    Abstract: A wall system or structure includes a lintel supported wall and footings for locating the lintel above ground. Tensioning rods extend upwardly from each footing for directly engaging an end of the wall and for securing a post to the footing, which post includes a slot for engaging the vertical edge of the wall. A plate resting on each footing may be used to support an end of the lintel above ground. Tensioning rods extend vertically from within the lintel upwardly into the wall.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: December 9, 2008
    Inventors: Harold H. Greenberg, Richard C. Campbell, Jr.
  • Patent number: 7454870
    Abstract: A wall system or structure includes a lintel supported wall and footings for locating the lintel above ground. Tensioning rods extend upwardly from each footing for directly engaging an end of the wall or for securing a post to the footing, which post includes a slot for engaging the vertical edge of the wall. A plate resting on each footing may be used to support an end of the lintel above ground. Tensioning rods extend vertically from within the lintel upwardly into the wall.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: November 25, 2008
    Inventors: Harold H. Greenberg, Richard C. Campbell, Jr.
  • Patent number: 7188453
    Abstract: A post tensioned wall includes accessible clamping plates at the ends of selected tensioning rods. Each post of a fence section is welded to a corresponding clamping plate to mechanically attach the post to the tensioning rod extending from a footing or foundation and through the wall.
    Type: Grant
    Filed: October 28, 2003
    Date of Patent: March 13, 2007
    Assignee: Pyramid Retaining Walls, LLC
    Inventors: Harold H. Greenberg, Richard C. Campbell, Jr.