Patents by Inventor Bjarne Anders Heggset

Bjarne Anders Heggset 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).

  • Patent number: 8128726
    Abstract: A method and a device for admixture of powder in a liquid, whereby the method comprises that the liquid in a supply (14), influenced by underpressure in a crucible (12) to which the liquid is to be transferred, flows through a drain tube (6) out of the supply (14), the powder is dosed from a powder receptacle (1) and is driven by a gas, and the mixture of powder and gas is added to the liquid in the drain tube (6) and mixed therewith, whereupon the mixture flows into the crucible (12). The device comprises a supply (14) from which the liquid may flow and a receptacle (1) with powder, whereby a drain tube (6) connects the supply (14) with a receiving receptacle (12) which can be held at an inner underpressure. A device (4) for supply of a driving gas for the powder is connected to a mixing chamber (3) at an outlet from the powder receptacle (1), while the mixing chamber (3) is connected to the drain tube (6) for supply of powder to the liquid flowing in the drain tube.
    Type: Grant
    Filed: June 22, 2007
    Date of Patent: March 6, 2012
    Assignee: Heggset Teknologi AS
    Inventors: Bjarne Anders Heggset, Per Gunnar Strand, Jo Henrik Vaagland
  • Publication number: 20100050815
    Abstract: A method and a device for admixture of powder in a liquid, whereby the method comprises that the liquid in a supply (14), influenced by underpressure in a crucible (12) to which the liquid is to be transferred, flows through a drain tube (6) out of the supply (14), the powder is dosed from a powder receptacle (1) and is driven by a gas, and the mixture of powder and gas is added to the liquid in the drain tube (6) and mixed therewith, whereupon the mixture flows into the crucible (12). The device comprises a supply (14) from which the liquid may flow and a receptacle (1) with powder, whereby a drain tube (6) connects the supply (14) with a receiving receptacle (12) which can be held at an inner underpressure. A device (4) for supply of a driving gas for the powder is connected to a mixing chamber (3) at an outlet from the powder receptacle (1), while the mixing chamber (3) is connected to the drain tube (6) for supply of powder to the liquid flowing in the drain tube.
    Type: Application
    Filed: June 22, 2007
    Publication date: March 4, 2010
    Applicant: Heggset Teknologi AS
    Inventors: Bjarne Anders Heggset, Per Gunnar Strand
  • 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