Patents by Inventor Petrus F. A. Haans

Petrus F. A. Haans 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).

  • Color television display tube and method of manufacturing same
    Patent number: 4207656
    Abstract: In an assembly of at least two electrodes which are connected together in an insulating manner, said electrodes are kept at a given distance from each other by at least one member of an electrically insulating material situated between the electrodes which comprises a core which determines the distance between the electrodes and a jacket which directly adheres to the electrode material by heating. The material of the core has a higher melting point than the material of the jacket so that the core during effecting a connection between the jacket and the electrode material maintains its shape.
    Type: Grant
    Filed: July 26, 1978
    Date of Patent: June 17, 1980
    Assignee: U.S. Philips Corporation
    Inventors: Johannes van Esdonk, Petrus F. A. Haans