Patents by Inventor Roy Arne CHRISTIANSEN

Roy Arne CHRISTIANSEN 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 AND EQUIPMENT FOR TREATMENT OF MOLTEN ALUMINIUM METAL
    Publication number: 20240263270
    Abstract: A method and an equipment for the treatment of molten aluminium metal, in particular Na removal in a tapping/transport crucible (1) provided with a lid (6). The atmosphere above the molten metal is sub-pressurized to a sub pressure between 300-10 mbar and subsequently exposed to a stirring action generated by an electromagnetic coil (EMS) arranged towards one side of the tapping/transport crucible (1), whereby Na can be removed from the molten aluminium metal without any addition of active or passive agents.
    Type: Application
    Filed: April 27, 2022
    Publication date: August 8, 2024
    Applicant: NORSK HYDRO ASA
    Inventors: Inge JOHANSEN, Shahid AKHTAR, Alf Inge ROMFO, Roy Arne CHRISTIANSEN, Jon NYGARD