Patents by Inventor Jean-Francois Dreux

Jean-Francois Dreux 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).

  • Patent number: 6762907
    Abstract: A disc drive system having a rotating disc storage device and a base housing with a sealed internal heat transport structure containing a working fluid. The rotating disc storage device is disposed on the base housing and has at least one heat-generating component in a heat exchange relationship with the base housing. The heat transport structure is formed as a cavity or at least one fluid passage arranged radially, in parallel, as a matrix, or a serpentine channel. Absorbed heat vaporizes the working fluid. The vapor transports the heat from a heat transport structure evaporator section near a relatively hot location of the base housing, to a heat transport structure condenser section near a relatively cooler location of the base housing, where the vapor condenses to liquid and releases the heat. The liquid working fluid is drawn by capillary action from the condenser section back to the evaporator section, aided by a wicking structure.
    Type: Grant
    Filed: June 7, 2001
    Date of Patent: July 13, 2004
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Chandrakant D. Patel, Jean-Francois Dreux
  • Publication number: 20040130475
    Abstract: An electromagnetic absorber for a computer includes an array of conduits allowing airflow and having electrically conductive internal walls for absorbing electromagnetic radiation. The absorber is formed from a foamed metal or metal alloy or a foamed or non-foamed member treated to be conductive. The electromagnetic absorber can also be an acoustic absorber.
    Type: Application
    Filed: December 9, 2003
    Publication date: July 8, 2004
    Inventors: Pierre Rieuvernet, Xavier Cohen, Jean-Francois Dreux
  • Publication number: 20020186500
    Abstract: A disc drive system having a rotating disc storage device and a base housing with a sealed internal heat transport structure containing a working fluid. The rotating disc storage device is disposed on the base housing and has at least one heat-generating component in a heat exchange relationship with the base housing. The heat transport structure is formed as a cavity or at least one fluid passage arranged radially, in parallel, as a matrix, or a serpentine channel. Absorbed heat vaporizes the working fluid. The vapor transports the heat from a heat transport structure evaporator section near a relatively hot location of the base housing, to a heat transport structure condenser section near a relatively cooler location of the base housing, where the vapor condenses to liquid and releases the heat. The liquid working fluid is drawn by capillary action from the condenser section back to the evaporator section, aided by a wicking structure.
    Type: Application
    Filed: June 7, 2001
    Publication date: December 12, 2002
    Inventors: Chandrakant D. Patel, Jean-Francois Dreux