Patents by Inventor Johnnie Everett Schmauder

Johnnie Everett Schmauder 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).

  • Storage cathode ray tube having auxiliary coils to correct non-symmetrical geometry
    Patent number: 3939378
    Abstract: A storage cathode-ray-tube having a single off-axis flood gun is described including auxiliary coils defining electromagnets placed, one electromagnet on either side of the cathode-ray-tube to correct non-symmetrical geometry in optical representations produced on the fluorescent screen of the cathode-ray tube caused by interaction of the conventional principle electron beam under the control of electrical signals during storage operation.
    Type: Grant
    Filed: January 8, 1975
    Date of Patent: February 17, 1976
    Assignee: Tektronix, Inc.
    Inventors: Johnnie Everett Schmauder, James Kipling Richardson