Patents by Inventor Jacques Abadie

Jacques Abadie 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).

  • Crystallogenesis device and process
    Patent number: 5932005
    Abstract: The material of the crystal (2) formed by solidification is deposited in a crucible (1), whose wall is perforated by two ducts for the injection of pressure at different heights (6, 7). A differential pressure is created between the two ducts, the pressure of the lower duct (7) being higher by a value roughly equal to the hydrostatic pressure of the remaining liquid (3), so that a clearance (5) is spontaneously formed between the crystal (2) and the crucible (1) and problems caused by differential thermal contractions on cooling are avoided.
    Type: Grant
    Filed: December 11, 1997
    Date of Patent: August 3, 1999
    Assignees: Commissariat A L'Energie Atomique, Centre National D'Etudes Spatiales
    Inventors: Thierry Duffar, Jacques Abadie, Pierre Dusserre