Patents by Inventor Karim Hanana

Karim Hanana 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).

  • Apparatus for treating fiber suspension
    Patent number: 5224603
    Abstract: An apparatus and method for treating fiber suspension is especially applicable for pulp screening in the wood processing industry, particularly for the separation of light particles from fiber suspensions. The apparatus comprises an outer casing with conduits for inlet pulp, accepts, heavier rejects and lighter rejects; a filter cylinder and a rotor, the surface of which is provided with at least one protrusion; and an opening for guiding the light rejects through the surface of the rotor.
    Type: Grant
    Filed: January 24, 1992
    Date of Patent: July 6, 1993
    Assignee: A. Ahlstrom Corporation
    Inventors: Karim Hanana, Risto Ljokkoi