Patents by Inventor Göran Norrgård

Göran Norrgård 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 for making drying more effective
    Patent number: 6351895
    Abstract: The invention relates to a method for making the drying of materials, particularly finely divided materials, more effective, in which method, of a slurry containing liquid and solids there is made a filter cake (2,12,22) onto the surface of the filter medium (1,11,21). According to the invention, the filter cake (2,12,22) and the oscillator (6,15,25) are arranged, in relation to each other, so that in between the filter cake (2,12,22) and the oscillator (6,15,25), there is generated an acoustic field by virtue of a mechanical contact between the filter cake (2,12,22) and the oscillator (6,15,25) or a structural element (7,16,26) connected to the oscillator.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: March 5, 2002
    Assignee: Outokumpu Oyj
    Inventors: Bjarne Ekberg, Göran Norrgård, Juan A. Gallego Juárez, Germán Rodriguez Corral, Luis Elvira Segura