Patents by Inventor Samuel H. Aladzhadzhyan

Samuel H. Aladzhadzhyan 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).

  • Generation of intense negative ion beams
    Patent number: 4649278
    Abstract: An electron gun is used with a mirror electrostatic field to produce zero or near zero velocity electrons by forming a turning point in their trajectories. A gas capable of attaching zero or near zero velocity is introduced at this turning point, and negative ions are produced by the attachment or dissociative attachment process. Operation may be continuous or pulsed. Ions thus formed are extracted by a simple lens system and suitable biasing of grids.
    Type: Grant
    Filed: May 2, 1985
    Date of Patent: March 10, 1987
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventors: Ara Chutjian, Otto J. Orient, Samuel H. Aladzhadzhyan