Patents by Inventor Miriam Spagnol

Miriam Spagnol 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).

  • Corrugated style anode element for ion pumps
    Patent number: 6388385
    Abstract: An ion pump anode eliminates the intercellular spaces while maintaining an efficient cell shape in which the plasma sheath follows the contour of the cell wall. The cell are preferably quasi-cylindrical and can be manufactured by folding one or more metal strip into a corrugation and welding the strip to create separate cells. By eliminating the intercellular region, which support a high plasma density, the formation of dendrites under such a region is prevented and instabilities caused by those dendrites are eliminated.
    Type: Grant
    Filed: March 17, 2000
    Date of Patent: May 14, 2002
    Assignees: FEI Company, Varian, Inc.
    Inventors: James B. McGinn, Miriam Spagnol
  • Sputter ion pump
    Patent number: 6264433
    Abstract: A sputter ion pump incorporating a corrugated style anode comprising a plurality of cylindrical adjacent hollow cells provided with cross sections having substantially the same area and an arcuated perimeter.
    Type: Grant
    Filed: April 1, 2000
    Date of Patent: July 24, 2001
    Assignee: Varian, Inc.
    Inventor: Miriam Spagnol