Patents by Inventor Raymond L. Oldfather

Raymond L. Oldfather 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 seat suspension mechanism with automatic seat stop
    Patent number: 4822094
    Abstract: A seat suspension mechanism providing a vertical range of cushion travel to a tractor seat when fluid is supplied to the mechanism. The suspension mechanism includes a linkage assembly movable through a predetermined path of travel for securing the seat to the frame and a damper assembly operable in combination with the linkage assembly for regulating the cushion travel of the seat. The present invention further includes an automatic seat stop mechanism connectable to the suspension mechanism for limiting the movement of the linkage assembly and the seat upon cessation or interruption of fluid flow to the seat suspension mechanism.
    Type: Grant
    Filed: January 12, 1988
    Date of Patent: April 18, 1989
    Assignee: J. I. Case Company
    Inventors: Raymond L. Oldfather, Robert J. Oliver