Patents by Inventor Andre Leonard

Andre Leonard 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).

  • Self-propelled and articulated vehicle with telescopic jacks to carry pipework inspection equipment
    Patent number: 5142990
    Abstract: The self-propelled vehicle intended to move in an essentially circular space has a central load-bearing structure made of frames placed in a longitudinal direction. Sets of jacks are arranged in transverse planes perpendicular to this direction and bear at their end a set of driving elements. Each jack has hollow rods of different diameters that are disposed concentrically about a longitudinal axis of the jack. These hollow rods are connected to one another and to the jack by a member for rotating the jack together with the hollow rods about the longitudinal axis.
    Type: Grant
    Filed: June 11, 1991
    Date of Patent: September 1, 1992
    Assignee: Ecole Superieure des Sciences et Technologies de l'Ingenieur de Nancy (ESSTIN)
    Inventor: Andre Leonard