Patents by Inventor Marshall L. Johnson

Marshall L. Johnson 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 cleaning rolls
    Patent number: 5159734
    Abstract: An apparatus for cleaning rolls comprising a plurality of cylindrical brushes that are rotated by a combination of sheaves and belts or their equivalent, which are powered by some form of a motor and uses a solvent to remove debris, such as residual fiber affixed to the rolls.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: November 3, 1992
    Assignee: Milliken Research Corporation
    Inventors: Riley S. Whitt, William L. Bridges, Marshall L. Johnson