Patents by Inventor Catherine Xuereb

Catherine Xuereb 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 for stirring a liquid and injecting a gas into said liquid with limited clogging
    Patent number: 7431272
    Abstract: An apparatus for stirring and injecting a gas into a liquid. A drive device, located above a container containing a liquid, is connected to a vertical output shaft. The shaft has a self-suction turbine at its. The turbine is made of two stacked disks where the surface area of the lower disk is less than the surface area of the upper disk.
    Type: Grant
    Filed: December 4, 2003
    Date of Patent: October 7, 2008
    Assignees: L'Air Liquide, Societe Anonyme A Directoire et Conseil de Surveillance pour l'Etude et l'Exploitation des Procedes Georges Claude, Centre National de la Recherche Scientifique, Institut National Polytechnique de Toulouse
    Inventors: Stephane Melen, Catherine Xuereb, Martine Poux, Rodolphe Sardeing
  • Device for Injecting Gas Into a Liquid
    Publication number: 20070290380
    Abstract: The invention concerns a device for stirring a liquid (L) in a reactor and for injecting a gas in said liquid, comprising a self-aspirating turbine (5) for producing a gas-liquid dispersion, an axial flow rotor (4) with axial flow for collecting said dispersion, and means for directing the gas-liquid dispersion towards said axial flow rotor (4) with axial flow. The invention is characterized in that said means comprise deflecting means (8) integrated in the self-aspirating turbine (5). The invention is applicable to the biological treatment of industrial effluents.
    Type: Application
    Filed: March 23, 2005
    Publication date: December 20, 2007
    Inventors: Pierre Avrillier, Catherine Xuereb, Martine Poux, Rodolphe Sardeing
  • Device for stirring a liquid and injecting a gas into said liquid with limited clogging
    Publication number: 20060151897
    Abstract: An apparatus for stirring and injecting a gas into a liquid. A drive device, located above a container containing a liquid, is connected to a vertical output shaft. The shaft has a self-suction turbine at its. The turbine is made of two stacked disks where the surface area of the lower disk is less than the surface area of the upper disk.
    Type: Application
    Filed: December 4, 2003
    Publication date: July 13, 2006
    Inventors: Stephane Melen, Catherine Xuereb, Martine Poux, Rodolphe Sardeing
  • Rotary gas dispersion device for treating a liquid aluminium bath
    Patent number: 6060013
    Abstract: A rotary gas dispersion device for use in a liquid aluminium treatment vessel is disclosed. The device is useful for reducing surface disturbance, splashing and vortices while maintaining the effectiveness of the treatment. Said device includes a rotor (1) consisting of a set of blades (5) and a substantially flat disc (4) thereabove. Gas is injected through the central hub and side ports (10) between the blades. The ratio of the outer diameter of the rotor to the diameter of the central hub thereof is of 1.5-4.
    Type: Grant
    Filed: March 8, 1999
    Date of Patent: May 9, 2000
    Assignees: Pechiney Rhenalu, Aluminium Pechiney
    Inventors: Pierre Le Brun, Catherine Xuereb, Joel Bertrand