Patents by Inventor Michel Bonmartin

Michel Bonmartin 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).

  • Device adapted to be fixed and sealed to at least one cylindrical member
    Patent number: 5924743
    Abstract: The invention concerns a device adapted to be fixed and sealed to at least one cylindrical member (1, 1'), characterized in that it includes:a first sleeve (2),a second sleeve (3) coaxial with the first sleeve (2) having a greater capacity for deformation than the first sleeve (2) and fixed and sealed to the first sleeve (2) at both ends,at least two cylindrical rings (4, 5) coaxial with the second sleeve (3), pressed against the latter and each fixed by one edge to one end of the second sleeve (3), andmeans (6, 6') for injecting a pressurized fluid between the first sleeve (2) and the second sleeve (3).
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: July 20, 1999
    Assignees: Gec Alsthom Stein Industrie, Central Nuclearie Europeene, Electricite De France
    Inventors: Michel Bonmartin, Bruno Veyrat, Yann Wolff, Christian Bonnand