Patents by Inventor David J. Munn

David J. Munn 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).

  • Lifting and installing streetlight poles
    Patent number: 6648570
    Abstract: Streetlight poles are lifted to a vertical position for installation in a mounting hole or on a support stand by connecting the lift cable of a boom to an elongate sling that is releasably attached to the pole.
    Type: Grant
    Filed: June 15, 2001
    Date of Patent: November 18, 2003
    Assignee: Progress Energy Carolinas, Inc.
    Inventor: David J. Munn
  • Lifting and installing streetlight poles
    Publication number: 20020192054
    Abstract: Streetlight poles are lifted to a vertical position for installation in a mounting hole or on a support stand by connecting the lift cable of a boom to an elongate sling that is releasably attached to the pole.
    Type: Application
    Filed: June 15, 2001
    Publication date: December 19, 2002
    Inventor: David J. Munn