Patents by Inventor Jean-Pierre Freytag

Jean-Pierre Freytag 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: 3991335
    Abstract: An axial ion source comprising a tubular anode having an axis XX, at the two ends of which there are placed a cathode located along said axis XX and anticathode which comprises a circular plate having an axis YY parallel to the axis XX, this plate being able to revolve about this axis YY. A device controls the sequential rotation of the anticathode about the axis YY, the rotation of the anticathode enabling a new intact surface to be presented, when necessary, at the end of the anode. A cooling fluid can circulate in the grooves equipping the plate.
    Type: Grant
    Filed: December 16, 1975
    Date of Patent: November 9, 1976
    Assignee: C.G.R.-Mev.
    Inventor: Jean-Pierre Freytag