Patents by Inventor Allan W. Keen

Allan W. Keen 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).

  • Cathode ray tube electrical connective traversal incorporating internal shielding and contact means
    Patent number: 3969647
    Abstract: A configurated expanse of metal is provided for orientation within a cathode ray tube envelope, attachment thereof being made with the interior surface of the electrical connective button located substantially in the funnel portion of the tube. The metallic expanse is shaped to provide regional shielding of the area involving the traversal button, and effects increased areal contact between the coating disposed on the internal surface of the envelope and the traversal button sealed therein.
    Type: Grant
    Filed: February 10, 1975
    Date of Patent: July 13, 1976
    Assignee: GTE Sylvania Incorporated
    Inventors: Allan W. Keen, Joseph B. Shinal