Patents by Inventor Johannes W. H. Verhagen

Johannes W. H. Verhagen 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
  • Method of manufacturing a cathode ray tube
    Patent number: 4832645
    Abstract: A method of manufacturing a cathode ray tube, in which the positions of the tube envelope and the gun assembly are adjusted so their respectively longitudinal axes coincide, and then fixed against non-axial movement prior to insertion and sealing of the gun assembly into the neck of the envelope, wherein the gun assembly position is fixed by clamping at least three of its connector pins.
    Type: Grant
    Filed: July 6, 1987
    Date of Patent: May 23, 1989
    Assignee: U.S. Philips Corporation
    Inventors: Johannes W. H. Verhagen, Piet C. J. van Rens, Rienk Weening