Patents by Inventor Michel Vosgien

Michel Vosgien 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).

  • Method of making stator stages for compressors and turbines, and stator vanes and vane arrays produced thereby
    Patent number: 4985992
    Abstract: A stator vane array is made by cutting vane blanks from a machined linear bar having a predetermined trapezoidal section using a wire tool electroerosion machine, the blanks being cut to an outline which conforms to the shape of the head and root portions of each vane. Each blank is then machined by electroerosion or by chemical machining to form the back and the face of the blade of the vane, and after carrying out finishing operations the vanes are butt-welded together edge to edge to form a complete annular array or a sector thereof. The method is particularly applicable to the manufacture of stator arrays for turbomachine compressors in which the stator vanes have blades with an evolutive profile.
    Type: Grant
    Filed: August 10, 1988
    Date of Patent: January 22, 1991
    Assignee: Societe National d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."
    Inventor: Michel Vosgien