Patents by Inventor Gerritt B. Gerritsen

Gerritt B. Gerritsen 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).

  • Liquid cooled display tube
    Patent number: 4734613
    Abstract: An efficiently cooled display tube is obtained by pumping a low viscosity liquid having a high heat capacity through a cooling space less than 1 mm. thick on the outside of the display window. A chamber is smoothly connected to the inlet aperture of the cooling space to assure a laminar flow, eliminating swirls which could give rise to refractive patterns in the display picture.
    Type: Grant
    Filed: January 9, 1984
    Date of Patent: March 29, 1988
    Assignee: U.S. Philips Corporation
    Inventors: Gerritt B. Gerritsen, Willem M. Van Alphen