Patents by Inventor Hood Chatham, III

Hood Chatham, III 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).

  • Method for rapid plasma treatments
    Patent number: 5364665
    Abstract: A plasma treating apparatus is useful for coating substrates with thin films having vapor barrier properties at relatively rapid deposition rates. The apparatus comprises an evacuable chamber, an electrically powered electrode defining a plasma-facing surface within the chamber, and a shield spaced a distance .DELTA. transverse to the plasma-facing surface. During plasma treatments, the plasma is confined to within distance .DELTA. while a substrate is continuously fed through the confined plasma.
    Type: Grant
    Filed: October 25, 1993
    Date of Patent: November 15, 1994
    Assignee: The BOC Group, Inc.
    Inventors: John T. Felts, Hood Chatham, III, Joseph Countrywood, Robert J. Nelson
  • Apparatus for rapid plasma treatments and method
    Patent number: 5224441
    Abstract: A plasma treating apparatus is useful for coating substrates with thin films having vapor barrier properties at relatively rapid deposition rates. The apparatus comprises an evacuable chamber, an electrically powered electrode defining a plasma-facing surface within the chamber, and a shield spaced a distance .DELTA. transverse to the plasma-facing surface. During plasma treatments, the plasma is confined to within distance .DELTA. while a substrate is continuously fed through the confined plasma.
    Type: Grant
    Filed: September 27, 1991
    Date of Patent: July 6, 1993
    Assignee: The BOC Group, Inc.
    Inventors: John T. Felts, Hood Chatham, III, Joseph Countrywood, Robert J. Nelson