Patents by Inventor Carl Lakroni

Carl Lakroni 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).

  • In-line salt refining of molten aluminium alloys
    Patent number: 8025712
    Abstract: The present invention describes an apparatus and a process for in-line substantially continuous degassing of aluminium and/or aluminium alloys, in absence of chlorine and through the injection of at least one metal halide salt that includes a halogen and water and an inert gas, in a transfer trough before casting.
    Type: Grant
    Filed: October 25, 2006
    Date of Patent: September 27, 2011
    Assignee: Rio Tinto Alcan International Limited
    Inventors: Claude Dupuis, Carl Lakroni, Peter Waite
  • In-Line Salt Refining of Molten Aluminium Alloys
    Publication number: 20080307927
    Abstract: The present invention describes an apparatus and a process for in-line substantially continuous degassing of aluminium and/or aluminium alloys, in absence of chlorine and through the injection of at least one metal halide salt that includes a halogen and water and an inert gas, in a transfer trough before casting.
    Type: Application
    Filed: October 25, 2006
    Publication date: December 18, 2008
    Applicant: ALCAN INTERNATIONAL LIMITED
    Inventors: Claude Dupuis, Carl Lakroni, Peter Waite
  • Process and apparatus for adding particulate solid material to molten metal
    Patent number: 6960239
    Abstract: An apparatus is provided for the treatment of molten metal, e.g. aluminum, with a particulate treatment agent and a gas. This includes a vessel for holding molten metal, a rotary device for breaking up particulate treatment agent and gas within the molten metal and for dispersing particulate treatment agent and gas within the molten metal contained in the vessel and means for supplying the particulate treatment agent and gas to the rotary device. The rotary device includes a hollow shaft having a rotor with an axial opening fixed to the discharge end of the shaft, this rotor being in the form of an annular plate with a plurality of radially mounted upwardly directed blades projecting from the top face of the annular plate and a plurality of radially mounted downwardly directed blades projecting from the bottom face of the annular plate.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: November 1, 2005
    Assignee: Alcan International Limited
    Inventors: Jean-François Bilodeau, Laszlo Istvan Kiss, Carl Lakroni
  • Process and apparatus for adding particulate solid material to molten metal
    Publication number: 20030205854
    Abstract: An apparatus is provided for the treatment of molten metal, e.g. aluminum, with a particulate treatment agent and a gas. This includes a vessel for holding molten metal, a rotary device for breaking up particulate treatment agent and gas within the molten metal and for dispersing particulate treatment agent and gas within the molten metal contained in the vessel and means for supplying the particulate treatment agent and gas to the rotary device. The rotary device includes a hollow shaft having a rotor with an axial opening fixed to the discharge end of the shaft, this rotor being in the form of an annular plate with a plurality of radially mounted upwardly directed blades projecting from the top face of the annular plate and a plurality of radially mounted downwardly directed blades projecting from the bottom face of the annular plate.
    Type: Application
    Filed: June 3, 2003
    Publication date: November 6, 2003
    Inventors: Jean-Francois Bilodeau, Laszlo Istvan Kiss, Carl Lakroni
  • Process and apparatus for adding particulate solid material to molten metal
    Patent number: 6589313
    Abstract: An apparatus is provided for the treatment of molten metal, e.g. aluminum, with a particulate treatment agent and a gas. This includes a vessel for holding molten metal, a rotary device for breaking up particulate treatment agent and gas within the molten metal and for dispersing particulate treatment agent and gas within the molten metal contained in the vessel and means for supplying the particulate treatment agent and gas to the rotary device. The rotary device includes a hollow shaft having a rotor with an axial opening fixed to the discharge end of the shaft, this rotor being in the form of an annular plate with a plurality of radially mounted upwardly directed blades projecting from the top face of the annular plate and a plurality of radially mounted downwardly directed blades projecting from the bottom face of the annular plate.
    Type: Grant
    Filed: September 10, 2001
    Date of Patent: July 8, 2003
    Assignee: Alcan International Limited
    Inventors: Jean-François Bilodeau, Laszlo Istvan Kiss, Carl Lakroni
  • Process and apparatus for adding particulate solid material to molten metal
    Publication number: 20020088307
    Abstract: An apparatus is provided for the treatment of molten metal, e.g. aluminum, with a particulate treatment agent and a gas. This includes a vessel for holding molten metal, a rotary device for breaking up particulate treatment agent and gas within the molten metal and for dispersing particulate treatment agent and gas within the molten metal contained in the vessel and means for supplying the particulate treatment agent and gas to the rotary device. The rotary device includes a hollow shaft having a rotor with an axial opening fixed to the discharge end of the shaft, this rotor being in the form of an annular plate with a plurality of radially mounted upwardly directed blades projecting from the top face of the annular plate and a plurality of radially mounted downwardly directed blades projecting from the bottom face of the annular plate.
    Type: Application
    Filed: September 10, 2001
    Publication date: July 11, 2002
    Inventors: Jean-Francois Bilodeau, Laszlo Istvan Kiss, Carl Lakroni