Patents by Inventor Robert D. McKenney

Robert D. McKenney 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: 7000900
    Abstract: A portable reel jack for supporting and lifting large spools of heavy cable, wire and the like includes a hydraulic lift with an extendable piston rod. A stanchion that is pivotally connected to the piston rod carries a spool support and remains vertically oriented during movement of the piston rod relative to the cylinder. Moreover, when the piston rod moves vertically away from the base in a lifting motion, then the stanchion moves laterally away from the hydraulic cylinder. As the spool is being lifted off of the ground by the hydraulic jack, the load-bearing location of the rod that carries the spool moves increasingly farther away from where the operator is standing to operate the lifting action of the portable reel jack. Additionally, the spool support has the flexibility of three different height elevations for carrying the rod on which the spool is in turn carried.
    Type: Grant
    Filed: January 9, 2004
    Date of Patent: February 21, 2006
    Inventors: Robert D. McKenney, Francis Stewart, Terry Hawkins