Patents by Inventor Richard D. Klein

Richard D. Klein 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: 4776748
    Abstract: The present invention provides a tractor-trailer vehicle for use in transporting ladles of molten metal. The trailer includes a generally U-shaped main frame, each side carrying a wheel assembly and a carrier beam pivotally interconnected at one end to the side. A transverse U-shaped overhead beam pivotally interconnects at each end to the carrier beams intermediate their ends, and has parallel ladle trunnion-engaging hooks pendantly disposed therefrom. Actuators interconnected between the main frame and the other end of the carrier beams provide a lever action rotating the carrier and overhead beams about the carrier beam-main frame pivot connection. The actuators are gimbaled to prevent load-induced binding. Upon such beam rotation, the overhead beam and hooks move substantially vertically to lift and lower the ladle from and to its supporting surface, respectively.
    Type: Grant
    Filed: September 29, 1986
    Date of Patent: October 11, 1988
    Assignee: Klein Equipment, Inc.
    Inventor: Richard D. Klein