Patents by Inventor Christian O. Nelson

Christian O. Nelson 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: 6354325
    Abstract: A valve cover for enclosing an underground area surrounding the actuating mechanism of a flow control valve. The valve cover includes a body having a structure configured to position the valve cover in a desired orientation relative to the flow control valve. This positioning structure may be at least partially elastomeric, and configured to resiliently deform and urge against the flow control valve when the valve cover body is placed over the valve actuating mechanism. This maintains the valve cover body seated in a centered, leveled orientation relative to the valve actuating mechanism. The positioning structure may also be formed as a spacer configured to contact the valve actuating mechanism itself and space the actuating mechanism from the valve cover body. The valve cover body is configured so that, when it is installed, a valve tool may be freely inserted into the enclosed underground area and operatively engaged with the valve actuating mechanism.
    Type: Grant
    Filed: January 31, 2001
    Date of Patent: March 12, 2002
    Assignee: 3 Dimensional Contracting, Inc.
    Inventors: Kenneth F. Warnes, Christian O. Nelson, Frank M. McElheran, Lance S. Landis, Thane J. Landis, William R. Huseby, John Barker, Matthew S. Cameron