Patents by Inventor Nicolaas H. P. Van Dartel

Nicolaas H. P. Van Dartel 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 manufacturing a cathode ray tube
    Patent number: 5234366
    Abstract: A method of manufacturing a cathode ray tube is provided for comprising a neck portion 4 in which an electron 5 having resilient elements 14 is secured. The method comprises a manufacturing step in which the electron gun 5 is inserted into the neck portion 4 by means of a managing tool 57 which serves to press together the resilient elements 14. Viewed in the axial direction, the managing tool 57 is located outside and clear of the neck portion 4.
    Type: Grant
    Filed: March 26, 1991
    Date of Patent: August 10, 1993
    Assignee: U.S. Philips Corporation
    Inventors: Nicolaas H. P. Van Dartel, Johannes W. H. Verhagen