Patents by Inventor Joris J. Thomas

Joris J. Thomas 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: 4358129
    Abstract: The back part of the underframe is fastened to the center point of the three-point lift of the tractor by an eye-bolt the shaft of which is rotatable mounted on said part.The side part of the underframe is comprised of a part which bears a wheel on the ground and carries a bearing for the arm of the tilling machine, an extension piece and a connection piece, lockable in several positions to the extension piece and hingably fastened by a pin and a fastening piece to the tractor adjacent the engine.The complete underframe can tilt relative to the tractor about the hinging axes formed by the eye-bolt and the pin, extending in the lengthwise direction of the tractor.Even with a height differential between the wheel and the tractor no large turning moment can be generated in the underframe or its fastening.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: November 9, 1982
    Inventor: Joris J. Thomas