Patents by Inventor Eddy Steinar Dale

Eddy Steinar Dale 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).

  • Rotor for the treatment of a fluid such as a metal melt
    Patent number: 6471912
    Abstract: A device in connection with a rotor (9) for the treatment of a liquid such as molten metal in a reactor (20) or similar structure. Gas and/or particulate material is supplied to the liquid, preferably via the rotor shaft (8) and through openings (18) from a cavity (16) in the rotor. The rotor shaft (8) extends up through the base of the reactor (20) and is arranged so that it may rotate inside a stator pipe (3) which extends up from the base of the reactor. The rotor shaft and the stator pipe extend through an opening (21) in the lower side of the rotor (9) and into the cavity (16) in the rotor. Expediently, the rotor shaft (8) is connected to the rotor (9) via a fixing device (13) inside the rotor cavity, while the stator pipe (3) ends in the cavity (16).
    Type: Grant
    Filed: February 22, 2001
    Date of Patent: October 29, 2002
    Assignee: Norsk Hydro ASA
    Inventors: Bjarne Heggseth, John Olav Fagerli, Eddy Steinar Dale, Per Gunnar Strand, Karl Venås
  • Rotor for the treatment of a fluid such as a metal melt
    Publication number: 20010017434
    Abstract: A device in connection with a rotor (9) for the treatment of a liquid such as molten metal in a reactor (20) or similar. Gas and/or particulate material is supplied to the liquid, preferably via the rotor shaft (8) and through openings (18) from a cavity (16) in the rotor. The rotor shaft (8) extends up through the base of the reactor (20) and is arranged so that it may rotate inside a stator pipe (3) which extends up from the base of the reactor. The rotor shaft and the stator pipe extend through an opening (21) in the lower side of the rotor (9) and into the cavity (16) in the rotor. Expediently, the rotor shaft (8) is connected to the rotor (9) via a fixing device (13) inside the rotor cavity, while the stator pipe (3) ends in the cavity (16).
    Type: Application
    Filed: February 22, 2001
    Publication date: August 30, 2001
    Inventors: Bjarne Heggseth, John Olav Fagerli, Eddy Steinar Dale, Per Gunnar Strand, Karl Venas