Patents by Inventor Hélène Laudic

Hélène Laudic 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).

  • Method for soldering an exhaust gas heat exchanger
    Patent number: 6543675
    Abstract: The invention concerns a method whereby a soldering joint is applied on one of the surfaces of a collector plate (2, 3) before inserting the ends of the tube to be assembled thereto, in the form of a flexible adhesive previously perforated to correspond to the holes (20) of the plate.
    Type: Grant
    Filed: November 29, 2000
    Date of Patent: April 8, 2003
    Assignee: Valeo Thermique Moteur
    Inventors: Hélène Laudic, Benjamin Gracia
  • Heat exchanger with a bank of tubes contained in a cylindrical casing
    Patent number: 6390186
    Abstract: Heat exchanger for recovering heat from the exhaust gases of a motor vehicle, in which the exhaust gases circulate between two manifolds delimited by respective caps and by the end walls of a cylindrical casing, passing in tubes which are elongated in the axial direction in the casing. The caps are produced by stamping from a thin sheet metal, which leads to a reduction in weight and in cost and allows the caps to remain fitted snugly by elasticity on the ends of the casing, until brazed.
    Type: Grant
    Filed: November 16, 1999
    Date of Patent: May 21, 2002
    Assignee: Valeo Thermique Moteur
    Inventors: Hélène Laudic, Jacques Hoffnung