Patents by Inventor Harald Knutsen

Harald Knutsen 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).

  • Sieve apparatus and method for use of same
    Patent number: 8025152
    Abstract: An apparatus and a method of screening a material containing a solid and fluid where the material is placed on an upper side of a screen element and the material is at least being acted on by vibrations produced by at least one acoustic sound source. The at least one acoustic sound source is arranged to transmit pressure waves to at least a portion of an underside of the screen element.
    Type: Grant
    Filed: March 16, 2006
    Date of Patent: September 27, 2011
    Assignee: Virdrill AS
    Inventors: Jan Kristian Vasshus, Trond Melhus, Harald Knutsen
  • Sieve Apparatus and Method For Use of Same
    Publication number: 20080223760
    Abstract: The present invention describes an apparatus and a method of screening a material containing a solid and fluid, where the material is placed on an upper side of a screen element (3, 5), the material at least being acted on by vibrations produced by at least one acoustic sound source (11), wherein the at least one acoustic sound source (11) is arranged to transmit pressure waves to at least a portion of an underside of the screen element.
    Type: Application
    Filed: March 16, 2006
    Publication date: September 18, 2008
    Inventors: Jan Kristian Vasshus, Trond Melhus, Harald Knutsen