Patents by Inventor Michael L. Pietrowski

Michael L. Pietrowski 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 spraying at a spraying station aligned with a continuously moving conveyor belt
    Patent number: 5518543
    Abstract: A spraying apparatus having a continuously moving conveyor belt which brings a vessel rim down to a spraying station, arrests movement of the vessel and aligns it with a vacuum gripping head, grips the vessel bottom and lifts and presents the vessel to a sprayer, rotates the vacuum gripped vessel rapidly to apply a plurality of thin layers of coating, and returns the coated vessel to the conveyor and releases the grip on the vessel so that the continuously moving conveyor can discharge the coated vessel from the spraying station.
    Type: Grant
    Filed: August 17, 1993
    Date of Patent: May 21, 1996
    Assignee: Anchor Hocking Corporation
    Inventors: Michael L. Pietrowski, Gordon D. Norlin, Thomas J. Mohr, Charles R. Williams, Thomas J. Haug, John W. Herrmann