Patents by Inventor Mark G. Wotzak

Mark G. Wotzak 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).

  • Coating apparatus for segments of cylindrical substrates
    Patent number: 7258746
    Abstract: A coating apparatus includes a cylindrical holding chamber having open ends, an opening formed in an inner surface and an inner diameter; a specimen having a curved inner surface with a radius of curvature that is equal to one half the inner diameter of the cylindrical holding chamber, the specimen having a size such that, when inserted in the opening in the inner surface of the cylindrical holding chamber, the inner surface of the cylindrical holding chamber and the curved inner surface of the specimen form a continuous surface; a counter bore formed radially outward from the opening in the inner wall of the cylindrical holding chamber; at least one evacuation hole extending from an interior of the cylindrical holding chamber through a wall of the cylindrical holding chamber to the counter bore; a flat formed on an exterior surface of the cylindrical holding chamber around the counter bore; and fastener holes formed around the counter bore and extending from the flat into the wall of the cylindrical holding
    Type: Grant
    Filed: March 24, 2005
    Date of Patent: August 21, 2007
    Assignee: U.S. Government as represented by the Secretary of the Army
    Inventor: Mark G. Wotzak