Patents by Inventor Denis Lang

Denis Lang 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).

  • Haying machines for facilitating transport thereof
    Patent number: 4621487
    Abstract: In a haying machine, a chassis, a plurality of rotors mounted side-by-side on the chassis for displacing plants on the ground, a shaft pivoted to the chassis for coupling the chassis to a pulling vehicle, a retractable support, wheels mounted on said support for carrying the machine during transportation thereof, and which are positioned substantially level with the chassis when the machine operates; and a hydraulic jack for simultaneously displacing the chassis with respect to the shaft and the retractable support with respect to the chassis.
    Type: Grant
    Filed: January 21, 1986
    Date of Patent: November 11, 1986
    Assignee: Kuhn S.A.
    Inventors: Jean-Pierre Urlacher, Denis Lang