Patents by Inventor Sami Grönstrand

Sami Grönstrand 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).

  • Stator for a flotation cell
    Patent number: 7458467
    Abstract: The invention relates to a stator for a flotation cell to be used in the flotation of slurry-like material, such as ore and concentrate containing valuable minerals, by means of which stator the orientation of the slurry flow created by the flotation cell rotor can be controlled. The stator is composed of at least three structural elements to be installed around the rotor provided with at least one flow regulator.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: December 2, 2008
    Assignee: Outotec Oyj
    Inventors: Sami Grönstrand, Raimo Airola, Seppo Ronkainen