Patents by Inventor Tadeusz C. Bobak

Tadeusz C. Bobak 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: 4328492
    Abstract: An image display system and process are disclosed. The image display system comprises a generally flat display screen which is subdivided into a plurality of display mode modules, each display module being composed of a plurality of display elements. Each display element allowing the display of an image dot, comprises a plurality of display sub-elements which are hollow cylinders, having a dark half surface and a clear half surface, rotatable by 180.degree.. Electromagnetic means are provided to actuate all display sub-elements for resetting and setting of the image. The display sub-elements of an element provide the display of the grey values of said dot.The electromagnets of each module are controlled by a binary digital control unit.
    Type: Grant
    Filed: September 6, 1979
    Date of Patent: May 4, 1982
    Inventors: Tadeusz Bobak, Tadeusz C. Bobak
  • Patent number: 4186394
    Abstract: An image display system and process are disclosed. The image display system comprises a generally flat display screen which is subdivided into a plurality of display mode modules, each display module being composed of a plurality of display elements. Each display element comprises at least one rectangular display cell wherein a projection block is movable between a retracted position, where it is invisibly lodged within the cell, and an advanced position, where it is visible from outside by the display's viewer. Each projection block is fixed to a slide movable in the two directions perpendicular to the front plane of the display. Means are provided to simultaneously actuate all slides in their retracting and their advancing movement.
    Type: Grant
    Filed: September 18, 1978
    Date of Patent: January 29, 1980
    Inventors: Tadeusz Bobak, Tadeusz C. Bobak