Patents by Inventor Anders Ruud

Anders Ruud 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: 6592961
    Abstract: A brick is made of refractory material, preferably for use in a furnace for calcining carbon bodies, wherein at least one surface of the brick that is facing towards an adjacent brick is provided with mating elements such as recesses and projections. The mating elements are rotationally symmetric about an axis that is perpendicular to the surface.
    Type: Grant
    Filed: July 19, 2001
    Date of Patent: July 15, 2003
    Assignee: Norsk Hydro ASA
    Inventors: Anders Ruud, Hogne Linga
  • Patent number: 5709160
    Abstract: An apparatus for the combustion of a suspension of a combustible liquid and combustible solids in particle shape, for instance carbon particles, includes a tank, a burner unit and a pipe which is connected to the burner unit and which protrudes into the tank where it is connected to a pump system. The pump system includes an eddy current pump with a branched outlet, where one of the outlet branches is connected to the pipe, while the other branch or branches is formed as a nozzle or a jet with its outlet directed into the tank, thus serving to stir the suspension in the tank.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: January 20, 1998
    Assignee: Norsk Hydro a.s.
    Inventors: Arne Werge-Olsen, Anders Ruud, Inge Holden