Patents by Inventor Thomas Woodford Huitema

Thomas Woodford Huitema 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).

  • Tractor implement lift height amplifier
    Patent number: 4039201
    Abstract: A tractor implement lift height amplifier including a lift arm mounted on a rock shaft on a tractor and having links connected to the arm and with the links connected with the draft arms attached between the tractor and a draft implement. The lift arm and links are arranged for abutting engagement when the lift arm is pivoted upwardly, to thereby effect a solid, rather than articulated, lift connection so that the additional upward pivoting of the lift arm will induce maximum lifting of the implement itself.
    Type: Grant
    Filed: September 7, 1976
    Date of Patent: August 2, 1977
    Assignee: J. I. Case Company
    Inventor: Thomas Woodford Huitema