Patents by Inventor Edward M. Dudasik

Edward M. Dudasik 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: 4812709
    Abstract: A privacy screen for a color CRT tube to shield images displayed on the color CRT tube film from observers to the sides of an observer in front of the tube. A first light control film contains a plurality of closely spaced louvers and is located in front of the color CRT tube. The louvers are positioned at a tilt angle relative to a vertical line and at a first direction relative to the vertical line. A second light control film contains a plurality of closely spaced louvers and is located in front of the CRT tube and the first light control film. The louvers of the second film are positioned at a tilt angle relative to the vertical line and at a second direction relative to the vertical line and opposite to the first direction of the louvers of the first film.
    Type: Grant
    Filed: May 29, 1987
    Date of Patent: March 14, 1989
    Assignee: Transaction Technology Inc.
    Inventor: Edward M. Dudasik