Patents by Inventor Wolfgang L. Schaps

Wolfgang L. Schaps 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).

  • Patent number: 6210757
    Abstract: An enclosed pressure gravure roll coating applicator, particularly designed for applying pressure sensitive films to web types substrates, and method of operating such coater. A downstream blade and an arcuately spaced upstream blade are positioned with respect to a roll to be coated. An intermediate gap-forming body between the blades forms a running gap with the surface of the roll to be coated. Substantially air free liquid coating is applied under pressure to an offrunning chamber adjacent the offrunning blade with excess coating flowing through the gap to an onrunning chamber adjacent the upstream blade. The pressure in the onrunning chamber is regulated at a relatively constant positive value sufficient to prevent air from entering the onrunning chamber past the upstream blade.
    Type: Grant
    Filed: March 19, 1999
    Date of Patent: April 3, 2001
    Assignee: Black Clawson Company, Inc.
    Inventors: John A. Taylor, Thomas J. Lombardo, Wolfgang L. Schaps