Patents by Inventor Jean-Francois Van De Voorde

Jean-Francois Van De Voorde 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).

  • Operating mechanism for variably settable blades of a turbomachine
    Patent number: 5224820
    Abstract: In a turbomachine in which the stator includes at least one stage of pivole blades and a ring which is movable axially to operate the levers which rotate the blades, the ring is moved by varying the pressure of gas which is contained in sealed chambers and which exerts a force between the movable ring and another fixed ring. This arrangement enables a better distribution of the forces to be achieved than purely mechanical movement control systems.
    Type: Grant
    Filed: September 24, 1992
    Date of Patent: July 6, 1993
    Assignee: Societe Nationale d'Etude et de Construction de Moteurs d'Aviation
    Inventors: Christophe Brichet, Jean-Louis Charbonnel, Gerard G. Miraucourt, Jacky Naudet, Jean-Francois Van De Voorde