Patents by Inventor Max R. Richan

Max R. Richan 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).

  • Ore separating method and apparatus
    Patent number: 4071143
    Abstract: The invention relates to a method and apparatus for separating ore. The apparatus includes a rotatable conical cap having a rounded top, inwardly curving sides and a riffle extending vertically from the circumference of the base. An ore-water slurry is allowed to flow down the sides of the rotationally agitating cap and into the riffle, which retains the heavy metals but allows the tailings to be carried over the riffle. The inward curvature of the sides cause centrifugal separation of the metals from the tailings in the slurry stream.
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: January 31, 1978
    Inventor: Max R. Richan