Patents by Inventor David F. Grabner

David F. Grabner 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).

  • Man platform for an aerial boom
    Patent number: 5722505
    Abstract: A man-lifting platform for mounting on an aerial boom comprising a frame adapted to be pivotally connected to the distal end of the aerial boom. The frame has a pair of sleeves on opposite sides thereof and a pair of rods in the sleeves. The rods are secured to the man-lifting platform and generally parallel fashion. A power cylinder is connected between the frame and the man-lifting platform whereby the man-lifting platform may be moved the length of the rods by actuation of the cylinder.
    Type: Grant
    Filed: June 8, 1995
    Date of Patent: March 3, 1998
    Assignee: Teco, Inc.
    Inventors: David F. Grabner, Patrick M. DeLaney