Patents by Inventor Steinar Benum

Steinar Benum 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 continuous or semicontinuous casting of metal
    Patent number: 7445037
    Abstract: A method and equipment for continuous or semi-continuous casting of metal, in particular directly-cooled (DC) casting of aluminum, including at least one mold (3) with a mold cavity (11) that is provided with an inlet (4) linked to a metal store and an outlet with devices (27) for cooling the metal so that an object in the form of an extended string, rod or bar is cast through the outlet. The metal is supplied to the mold (3) in such a way and with such regulation that the metallostatic pressure in the contact point (solidification zone) against the mold wall is virtually zero during casting.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: November 4, 2008
    Assignee: Norsk Hydro ASA
    Inventors: Bjarne Anders Heggset, Bjørn Vaagland, Steinar Benum, Geir Olav Ånesbug, Torstein Sæther, John Erik Hafsås
  • Method and equipment for continuous or semicontinuous casting of metal
    Publication number: 20060219378
    Abstract: A method and equipment for continuous or semi-continuous casting of metal, in particular directly-cooled (DC) casting of aluminium, including at least one mould (3) with a mould cavity (11) that is provided with an inlet (4) linked to a metal store and an outlet with devices (27) for cooling the metal so that an object in the form of an extended string, rod (25) or bar is cast through the outlet. The metal is supplied to the mould (3) in such a way and with such regulation that the metallostatic pressure in the contact point (solidification zone) against the mould wall is virtually zero during casting.
    Type: Application
    Filed: June 25, 2004
    Publication date: October 5, 2006
    Inventors: Bjarne Heggset, Bjørn Vaagland, Steinar Benum, Geir Ånesbug, Torstein Saether, John Hafsas