Patents by Inventor Dennis Henry Irlbeck

Dennis Henry Irlbeck 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).

  • Correcting lens having two effective surfaces
    Patent number: 4037936
    Abstract: A correcting lens for use in the formation of a color picture tube screen has a first effective surface comprised of a plurality of elements separated by boundaries of discontinuity. Each of the elements in the first effective surface is separately contoured to reduce misregister in the tube. The second effective surface, opposite the first, is contoured to additionally reduce misregister in the tube.
    Type: Grant
    Filed: April 5, 1974
    Date of Patent: July 26, 1977
    Assignee: RCA Corporation
    Inventors: Albert Maxwell Morrell, Dennis Henry Irlbeck