Patents Assigned to Pechiney Japon
  • Rotary inert gas dispersion apparatus for molten metal treatment
    Patent number: 5904894
    Abstract: A rotating injector for use in the treatment of molten metal to remove impurities. Inert gas is flowed through a hollow rotary shaft having a lower gas port opening to a gas chamber surrounded by an outlet of porous material for creating micronized bubbles in the molten metal. A rotating mixer disperses the inert gas issuing from the outlet.
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: May 18, 1999
    Assignee: Pechiney Japon
    Inventor: Takaaki Mukohda