Patents by Inventor Jean-Pierre L. Mareix

Jean-Pierre L. Mareix 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).

  • Sealing lining between vanes and intermediate platforms
    Patent number: 5520514
    Abstract: Assembly for a rotor whose disk alternately bears vanes (1) and platforms (2). The plays (i.e. clearances) (7) are filled up with linings (15) composed of a mainly flexible casing (16) occupied by a small rod (20) which moves outwardly under the action of the centrifugal forces for filling up the play (7).
    Type: Grant
    Filed: February 21, 1995
    Date of Patent: May 28, 1996
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "SNECMA"
    Inventors: Jean-Pierre L. Mareix, Philippe J.-P. Pabion
  • Turbine casing delimiting an annular gas flow stream divided by radial arms
    Patent number: 5312227
    Abstract: A turbine casing includes circumferential walls delimiting an annular stream for the flow of gases. The radial arms traversing the stream are completed by a channeling part on the downstream side which is bolted to the arms. The walls are formed of butt-joined tiles assembled together and joined to collars situated on the arms and the channeling parts by riveted ridge tiles. The invention results in a reduction of resistance to the flow of gases, as well as absorption without the production of excessive stresses of the original thermic dilations in the walls.
    Type: Grant
    Filed: December 14, 1992
    Date of Patent: May 17, 1994
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation "S.N.E.C.M.A."
    Inventors: Roland M. E. Grateau, Alain J. E. Guibert, Alain J. C. Henu, Patrick Kapala, Jean-Pierre L. Mareix, Florence J. A. Monchois, Michel M. Ribault