Patents by Inventor Steve L. Siebert

Steve L. Siebert 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: 4394107
    Abstract: A forklift assembly for use with tractors having a conventional three point hitch includes a frame mounted to the tractor via the three point hitch. Raising and lowering the three point hitch raises and lowers the frame. A tine assembly slides along the lateral sides of the frame. A roller is rotationally mounted between the lateral sides near their upper ends. One end of a first cable is attached to the roller and the cable is wrapped around it in a first direction and the other end is attached to a stationary point on the tractor at a point below the roller. Second cables are each attached to the roller at one end and wrapped in a second direction around the roller and the opposite ends are attached to the tine assembly. Movement of the frame upwardly unwinds the first cable from the roller and winds the second cables onto the roller to raise the tine assembly along the frame.
    Type: Grant
    Filed: November 5, 1981
    Date of Patent: July 19, 1983
    Assignee: D & S Manufacturing
    Inventor: Steve L. Siebert