Patents by Inventor Jussi Virtamo

Jussi Virtamo 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).

  • Gyratory crusher
    Patent number: 5152468
    Abstract: The invention relates to a gyratory crusher in which a piston surrounds a wabbler shaft or eccentric sleeve and the radial forces of the spindle shaft are transmitted to the frame of the crusher through the piston.
    Type: Grant
    Filed: August 23, 1991
    Date of Patent: October 6, 1992
    Assignee: Lokomo Oy
    Inventors: Jussi Virtamo, Markku Ruokonen