Patents by Inventor Marie-Christine Piget

Marie-Christine Piget 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).

  • Railway vehicle whose weight is distributed on four axles which are steerable relative to the body
    Patent number: 4986191
    Abstract: The invention relates to a railway vehicle comprising two sets of two axles which are steerable relative to the body. The load of the body is applied in the vertical plane of each axle at two points adjacent to the wheels. The load of the body is applied through slide friction blocks. The invention concerns in particular railway vehicles wherein each axle is radially guided.
    Type: Grant
    Filed: September 18, 1989
    Date of Patent: January 22, 1991
    Assignee: Regie Autonome des Transports Parisiens
    Inventors: Jean-Pierre Ragueneau, Rene Klima, Marie-Christine Piget