Patents Represented by Attorney L. Greenspan
  • Patent number: 3932011
    Abstract: In the method of making a cathode-ray tube comprising a luminescent-viewing-screen structure including an aluminum metal layer in contact with a layer of carbon particles, the steps soon after the faceplate panel is heat sealed to the funnel, of flushing the still-hot assembly with a dry noncontaminating gas, such as nitrogen or air, then cooling the assembly to room temperature and then reflushing the assembly with a dry noncontaminating gas, and then capping the assembly with a temporary closure. The assembly so conditioned can be held or stored for a relatively long term between the heat sealing step and the subsequent manufacturing steps without degradation of the conductivity or reflectivity of the aluminum metal layer.
    Type: Grant
    Filed: June 5, 1974
    Date of Patent: January 13, 1976
    Assignee: RCA Corporation
    Inventor: Joseph John Piascinski