Patents by Inventor Joseph Chabrerie

Joseph Chabrerie 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).

  • U-tube heat exchanger, equipped with a tube antivibration stabilizing system and a hold-down system
    Patent number: 5692557
    Abstract: A heat exchanger, in particular for a nuclear reactor steam generator, comprising a U-tube bundle and a stabilizing system composed of anti-vibration bars inserted between the tubes of the bundle in the upper tube U-bend region. The anti-vibration bars have portions that protrude from the tube bend region, and the stabilizing system comprises elements which connect the aligned portions of the ends of the anti-vibration bars and are composed of a comb with slots designed to receive the ends of the anti-vibration bars, and a comb cover attached with fastening means. All the connecting elements are attached to supports that are joined to the bundle wrapper, while allowing limited movement of the set of anti-vibration bars and connecting elements.
    Type: Grant
    Filed: March 5, 1996
    Date of Patent: December 2, 1997
    Assignee: Framatome
    Inventors: Nicolas Gillet, Christian Valadon, Jean-Pierre Roinjard, Joseph Chabrerie, Sok Kang