Patents by Inventor Lawrence M. Scholten

Lawrence M. Scholten 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).

  • Method of extending the life of a cathode ray tube
    Patent number: 4336478
    Abstract: A luminous trace of varying length is produced upon a first non-centralized portion of the screen of a cathode ray tube used in a phototypesetter for generating characters, and is precisely imaged upon positions of a photosensitive medium. The concentration of the electron beam to generate the required trace eventually burns out the phosphor. The life of the tube is greatly extended by thereafter rotating it to position a second non-centralized portion of the screen at the optical projection axis, and so on, and thus, the cathode ray tube life is greatly extended.
    Type: Grant
    Filed: April 21, 1980
    Date of Patent: June 22, 1982
    Assignee: Itek Corporation
    Inventors: John H. Quilty, Lawrence M. Scholten