Patents by Inventor Kenneth F. Hart

Kenneth F. Hart 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).

  • Material-handling apparatus
    Patent number: 4015738
    Abstract: A counterbalanced lift truck mast is adjustable to a plurality of discrete different longitudinal positions between the truck load bearing wheels to overcome additional counterweighting requirements or load de-rating if various load manipulators position the load at varying distances from the load wheels. The load bearing wheels are driven through separate very narrow gear train housings to provide adequate space for mast adjustment.
    Type: Grant
    Filed: April 13, 1976
    Date of Patent: April 5, 1977
    Assignee: The Raymond Corporation
    Inventors: Christian D. Gibson, Kenneth F. Hart