Patents by Inventor Wouter M. Reukers

Wouter M. Reukers 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).

  • Display tube having discrete X-ray absorbing means and methods of manufacture
    Patent number: 5124614
    Abstract: A method of manufacturing a display tube comprising an envelope having an envelope portion and a display window. The quantity of X-rays released from the envelope portion is determined, after which discrete X-ray absorbing means are provided in those places of the envelope where the quantity of X-rays released exceeds a limiting value. In a display tube manufactured according to such a method and comprising, in particular, a substantially rectangular display screen and a cylindrical neck portion having an electron gun the diagonals of the envelope of which are provided with discrete X-ray absorbing means, the desirable quantity of X-rays is absorbed in a simple and cost-effective manner.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: June 23, 1992
    Assignee: U.S. Philips Corporation
    Inventors: Gijsbertus Bakker, Wouter M. Reukers