Patents Represented by Attorney White & Zelano Millen

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  • Process and apparatus for separating materials of different shapes or sizes
    Patent number: 4986424
    Abstract: The invention concerns a process and an apparatus for separating powdery materials shaped as balls or pellets. It is characterized by the use of a vibrating screw elevator (4) subjected to vibrations of an amplitude so selected as to produce on the screw turns (5), an upward flow of the particles to be removed, while maintaining a downward flow of the particles to be recovered. The invention provides in particular for the separation of round balls from broken balls.
    Type: Grant
    Filed: February 20, 1990
    Date of Patent: January 22, 1991
    Assignee: Europeenne de Retraitement
    Inventors: Georges Berrebi, Francois Ackermann