Patents by Inventor Robert E. Warman

Robert E. Warman 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: 4181918
    Abstract: An economical system for magnifying and projecting the image generated on a television receiver cathode ray tube employs a vertical deflection reversing switch to invert and laterally reverse the image, and a three element lens within a light-proof projection chamber to re-invert, magnify and project the image onto a forward projection type reflective screen. The projection chamber utilizes a white diffuse reflective surface upon its inner walls to increase the intensity of the projected image without visibly reducing the resolution of the image. The system also utilizes a cylindrical lens assembly to provide a simplified focusing arrangement.
    Type: Grant
    Filed: April 7, 1978
    Date of Patent: January 1, 1980
    Inventors: Robert E. Warman, Cortland R. Dusseau