Patents by Inventor Alain Ponthieux

Alain Ponthieux 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).

  • Ceramic blades for turbomachines
    Patent number: 4563125
    Abstract: The blade comprises a metal web (1) surrounded by a refractory ceramic casing (2). The central web (1) is provided with at least one ventilation passage (4) in which flows a small amount of ventilation air. The zones where there is contact between the ceramic casing (2) and the central metal web (1) are provided with cooling cavities (5) in which cooling air flows at a high rate so as to establish a forced cooling condition.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: January 7, 1986
    Assignee: Office National D'Etudes et de Recherches Aerospatiales
    Inventors: Serge Boudigues, Georges Frattacci, Alain Ponthieux