Patents by Inventor John Michael Ratay

John Michael Ratay 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).

  • Slurry process for coating particles upon the viewing-window surface of a cathode-ray tube
    Patent number: 4078095
    Abstract: Method comprises heating the viewing window of a cathode-ray tube to temperatures above 35.degree. C, dispensing from a storage container onto a surface of said window a quantity of slurry comprised of particulate material mixed with a liquid vehicle, the quantity of slurry being in excess of that required to coat said surface, spreading the quantity of slurry over the surface whereby the slurry is heated by the window, collecting the excess slurry from the surface and returning it to the storage container, and removing the heat transferred to the excess slurry from the window.
    Type: Grant
    Filed: March 28, 1974
    Date of Patent: March 7, 1978
    Assignee: RCA Corporation
    Inventor: John Michael Ratay