Patents by Inventor Jean-Pierre Thieulent

Jean-Pierre Thieulent 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).

  • Travelling-wave tube with an improved electron gun
    Patent number: 3979634
    Abstract: In order to reduce to a minimum the internal diameter of the focusing coils 30 of travelling-wave tubes, the electrodes of the electron gun 10 thereof terminate in cylindrical portions 26, 31 whose external surfaces are in contact, via rings 27 and 28, with metal washers 18, 19 separating insulating cylinders 14, 15, 16 stacked one on top of the other and forming a socket for the casing of the tube containing gun 10. The contact is such that the radial dimensions are minimal and high insulation can be provided between the components. Application to high-power, high-voltage travelling-wave tubes.
    Type: Grant
    Filed: November 7, 1974
    Date of Patent: September 7, 1976
    Assignee: Thomson-CSF
    Inventors: Andre Jaillet, Andre Pelletier, Jean-Pierre Thieulent