Patents by Inventor Keith Ballenger

Keith Ballenger 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).

  • CHUCK AND BRIDGE CONNECTION POINTS FOR TUBE FILAMENTS IN A CHEMICAL VAPOR DEPOSITION REACTOR
    Publication number: 20110203101
    Abstract: A chemical vapor deposition reactor system includes one or more tube filaments connected to a bridge, each tube filament being connected to a chuck. The chuck-to-filament connection can include a seed formed on an end of the tube filament, the seed being connected to a protrusion of the chuck, or the filament may be formed directly onto the chuck. For the bridge-to-filament connection, a flat cross bridge or a rectangular bridge is connected with corresponding openings in the filament. Use of these connections can maintain electrical connectivity and thus resistive heating of the tube filaments during operation of the reactor system.
    Type: Application
    Filed: June 23, 2009
    Publication date: August 25, 2011
    Applicant: GT SOLAR INCORPORATED
    Inventors: Jeffrey C. Gum, Keith Ballenger, Carl Chartier, Andy Schweyen