Patents by Inventor Paul Delfourne

Paul Delfourne 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).

  • Inter-carriage passage for a railway train
    Patent number: 4690068
    Abstract: The invention relates to an inter-carriage passage for a railway carriage set comprising an intermediate bodywork member having a generally annular shape connecting the adjoining ends of two carriages.In accordance with the invention, the intermediate bodywork member is connected to the two adjoining carriage ends so as to be maintained in a radial position; this intermediate member is positioned on each carriage end by means of deformable pneumatic joints.The invention is especially applicable to metro (rapid transit) trains with short carriages and radial axles.
    Type: Grant
    Filed: October 1, 1985
    Date of Patent: September 1, 1987
    Assignee: R.A.T.P. Regie Autonome des Transports Parisiens
    Inventor: Paul Delfourne