Patents by Inventor Hendrik Bongenaar

Hendrik Bongenaar 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).

  • Patent number: 5448316
    Abstract: An assembly of at least two stacked anti-implosion bands, in which each anti-implosion band 14, 24 comprises suspension elements 15, 25 projecting from the anti-implosion band 14, 24 which surround the adjacent anti-implosion band with clearance. As a result, anti-implosion bands can be stacked in a simple manner for storage and/or shipment, and can be readily unstacked for individual attachment to display tubes.
    Type: Grant
    Filed: September 28, 1990
    Date of Patent: September 5, 1995
    Assignee: U.S. Philips Corporation
    Inventors: Hendrik Bongenaar, Franciscus A. J. Hessels
  • Patent number: 4987337
    Abstract: This invention relates to a color display tube having a color selection electrode which is suspended from the display window by means of pin-shaped members which are inserted in the upright edge 3 of a display window. The pin-shaped members have a spherical free end 16 portion which engages in an aperture of a conical portion of the flat resilient suspension element attached to the corners of the mask. To avoid the flat resilient suspension element from lying against the pin-shaped member, the central axis A of the pin-shaped member forms an angle .alpha. of from 5.degree. to 20.degree. with the X-Y plane.
    Type: Grant
    Filed: December 12, 1988
    Date of Patent: January 22, 1991
    Assignee: U.S. Philips Corporation
    Inventors: Hendrik Bongenaar, Henricus J. M. van der Avoort
  • Patent number: 4155102
    Abstract: Disclosed is a cathode ray tube with a metal anti-implosion strap which is electrically connected to the external conductive coating on the conical portion of the tube envelope. The conductive coating extends beneath on adhesive-containing layer provided around the side wall of the display window beneath the metal strap. Positioned between the conductive coating and the metal strap is a metal contact member which electrically shunts the adhesive-containing layer and directly contacts the conductive coating and the metal strap connecting the latter to the conductive coating.
    Type: Grant
    Filed: September 14, 1977
    Date of Patent: May 15, 1979
    Assignee: U.S. Philips Corporation
    Inventor: Hendrik Bongenaar