Patents by Inventor Franciscus P. van Jole

Franciscus P. van Jole 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).

  • Cathode-ray tube having a gettering device and gettering device suitable for said tube
    Patent number: 4577136
    Abstract: In a cathode-ray tube having a glass envelope portion, a gettering device (18) is urged against an internal wall portion of the glass envelope portion (2) by means of a resilient metal strip (19) connected to a component of the tube. The gettering device comprises a getter holder (30) in the form of an annular metal channel which is connected to the resilient metal strip (19) via a metal connection strip (32) and furthermore is kept, spaced from the wall portion by a metal support member (33). The support member is formed by a metal supporting arm (33) extending from the metal connection strip (32) which at its free end (34) is curved convexly with respect to the wall portion and contacts the wall portion in an area (35) situated centrally with respect to the annular channel (30). This arrangement enables the temperature of the support member at the area where it contacts the wall portion to be kept below 700.degree. C.
    Type: Grant
    Filed: October 28, 1983
    Date of Patent: March 18, 1986
    Assignee: U.S. Philips Corporation
    Inventors: Rijk Hooghordel, Franciscus P. van Jole