Patents by Inventor Antoine Marques

Antoine Marques 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).

  • Turbine shaft having inserted disks
    Patent number: 4029437
    Abstract: The invention concerns a turbine shaft having stepped bearings on which ds are shrunk on. It is characterized in that the connecting surface between two successive bearings consists of two conical portions separated by a cylindrical portion and toroidal connecting portions between the cylindrical portion and the conical portions. The invention reduces the concentrations of stresses and applies more particularly to elastic fluid turbine shafts.
    Type: Grant
    Filed: December 10, 1975
    Date of Patent: June 14, 1977
    Assignee: Groupe Europeen Pour La Technique Des Turbines a Vapeur G.E.T.T.
    Inventors: Pierre Aubry, Antoine Marques, Rene Schwartz