Patents by Inventor Frank R. Czajka

Frank R. Czajka 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).

  • Fluid level detection system for ink in a printing press
    Patent number: 5694974
    Abstract: A fluid level detection system (50) for ink in a printing press (10) having a vessel (58) having walls (60) defining a chamber (62), an elongated rotatable shaft (64) in the chamber (62), a motor (66) for rotating the shaft (64), an elongated flexible blade (68) affixed to the shaft 64 such that the motor (66) rotates the blade (68), and a proximity sensor (72) adjacent the walls (60) of the vessel (58) to detect the rotating blade (68) in the absence of ink at the level of the blade (68), with the blade (68) flexing in the presence of ink such that the sensor (72) does not detect the blade (68).
    Type: Grant
    Filed: January 24, 1996
    Date of Patent: December 9, 1997
    Assignee: Goss Graphic Systems, Inc.
    Inventors: Thaddeus A. Niemiro, Frederick J. Whiting, John W. Manser, Joseph Vucko, Frank R. Czajka