Patents by Inventor Antonina I. Bougrova

Antonina I. Bougrova 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).

  • Plasma accelerator with closed electron drift
    Patent number: 5581155
    Abstract: The plasma accelerator comprises: a main annular channel (24) for ionization and for acceleration defined by parts (22) made of insulating material and open at its downstream end (225); at least one hollow cathode (40) associated with ionizable gas feed means (41); and an annular anode (25) concentric with the main annular channel (24) and disposed at a distance from the open downstream end (225). An annular buffer chamber (23) having a dimension in the radial direction which is greater than that of the main annular channel (24) extends upstream therefrom beyond the zone in which the annular anode (25) is placed. Ionizable gas feed means (26) open out upstream from the anode (25) via an annular manifold (27) into a zone distinct from the zone carrying the anode (25).
    Type: Grant
    Filed: January 12, 1995
    Date of Patent: December 3, 1996
    Assignee: Societe Europeene De Propulsion
    Inventors: Alexei I. Morozov, Antonina I. Bougrova, Valentine T. Niskine, Alexei V. Dessijatskov, Dominique Valentian