Patents by Inventor Matti Tarvainen

Matti Tarvainen 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).

  • Flotation cell line
    Patent number: 6536596
    Abstract: The invention relates to a flotation cell line, wherein there are installed, in order to treat the flotatable material, several flotation cells so that the flotatable material can be set to flow through the flotation cell line. According to the invention, the flotation cells (, 1, 2, 3, 4, 5; 31, 32, 33, 34, 35) that are arranged successively in the flowing direction (22, 52) of the flotatable material, are at least partly installed in parallel with respect to each other.
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: March 25, 2003
    Assignee: Outokumpu Oyj
    Inventors: Timo Niitti, Matti Tarvainen