Patents by Inventor Anthony E. Robson

Anthony E. Robson 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).

  • Durable plasma treatment apparatus and method
    Patent number: 6105518
    Abstract: A method and apparatus for treating a work surface, wherein there is provided a chamber having a longitudinal axis and longitudinally extending electrically conductive sidewalls, at least one sidewall having at least one longitudinally extending gap that interrupts a current path through the sidewalls transverse to the longitudinal axis, and wherein the chamber is sealed to allow pressure inside the chamber to be controlled.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: August 22, 2000
    Assignee: Research Triangle Institute
    Inventors: Anthony E. Robson, Ronald A. Rudder, Robert C. Hendry, Moses M. David, James V. Burt
  • Durable plasma treatment apparatus and method
    Patent number: 5874014
    Abstract: A method and apparatus for treating a work surface, wherein there is provided a chamber having a longitudinal axis and longitudinally extending electrically conductive sidewalls, at least one sidewall having at least one longitudinally extending gap that interrupts a current path through the sidewalls transverse to the longitudinal axis, and wherein the chamber is sealed to allow pressure inside the chamber to be controlled.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: February 23, 1999
    Assignees: Berkeley Scholars, Inc., Research Triangle Institute, Minnesota Mining and Manufacturing Company
    Inventors: Anthony E. Robson, Ronald A. Rudder, Robert C. Hendry, Moses M. David, James V. Burt
  • Method and apparatus for forming an agile plasma mirror effective as a microwave reflector
    Patent number: 5182496
    Abstract: A method and apparatus for forming plasma sheets of preselected planar curvature, which can be used as mirrors for X-Band microwaves and above. A plasma is created using a shaped cathode. Confining magnetic fields maintains the plasma in the shape of the cathode. Additional magnetic fields can provide additional curvature to the plasma sheet.
    Type: Grant
    Filed: April 7, 1992
    Date of Patent: January 26, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Wallace M. Manheimer, Anthony E. Robson, Robert A. Meger
  • Method of and apparatus for controlling plasma potential and eliminating unipolar arcs in plasma chambers
    Patent number: H1868
    Abstract: A method of and apparatus for controlling the potential of a plasma including a metal-walled chamber and a conductive coil which carries a radio-frequency current and is wrapped around the metal-walled chamber to produce a plasma within the chamber. A filament made of refractory metal has two ends, and a central portion formed in the shape of a probe. The central portion of the filament extends into the interior of the chamber and the two ends of the filament pass through a wall of the chamber to the exterior of the chamber. A heating power supply is connected to the two ends to the filament and to the chamber wall for heating the filament to a predetermined temperature above that of the plasma. The heated filament produces thermionic emissions from the filament to the plasma in order to control the plasma potential and eliminate unipolar arcing at the chamber wall.
    Type: Grant
    Filed: April 15, 1998
    Date of Patent: October 3, 2000
    Assignee: United States of America
    Inventor: Anthony E. Robson