Patents by Inventor William H. Duesenberg

William H. Duesenberg 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: 6902353
    Abstract: A top block for modular precast retaining wall system wherein beveled surfaces of a horizontal component of the top block form a cast-in-place key integrated with cast-in-place column formed in the construction of the retaining wall using modular block units. The top block provides an aesthetically pleasing front surface the upper edge of which may be rectilinear or contoured to fit various applications and appearance requirements.
    Type: Grant
    Filed: April 19, 2002
    Date of Patent: June 7, 2005
    Inventors: Ned H. Nelson, William H. Duesenberg
  • Publication number: 20020176751
    Abstract: A top block for modular precast retaining wall system wherein beveled surfaces of a horizontal component of the top block form a cast-in-place key integrated with cast-in-place column formed in the construction of the retaining wall using modular block units. The top block provides an aesthetically pleasing front surface the upper edge of which may be rectilinear or contoured to fit various applications and appearance requirements.
    Type: Application
    Filed: April 19, 2002
    Publication date: November 28, 2002
    Inventors: Ned H. Nelson, William H. Duesenberg
  • Patent number: 5010707
    Abstract: A retaining wall is described using multiple pre-cast concrete block modules positioned in stacked horizontal rows with multiple vertical concrete columns which interlock each horizontal row. Each block, which is designed and manufactured to interlock with other like modules, includes a body having at least one vertical side, a leg connecting means attached to a vertical side, and a central passageway. In the preferred embodiment, a leg is attached to and extends laterally from the body with a compatible connecting means formed on the end surface of the leg which interconnects with a leg connecting means located on the body. An alignment means may be formed on the top and bottom surface of the body and used to align stacked block modules. During the wall's assembly, the modules are positioned side-by-side and interconnected in a horizontal row either on the ground or on a pre-constructed continuous concrete footing. End or corner block modules are used when desired.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: April 30, 1991
    Inventors: Ned Nelson, William H. Duesenberg