Patents by Inventor Brian S. Luigs

Brian S. Luigs 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).

  • Apparatus and method for welding steel boiler tubes
    Patent number: 9611956
    Abstract: Apparatus and method for welding steel boiler tubes in a space restricted area using a pulsed-arc welding process. The process includes the use of a consumable insert ring having a T-shaped profile and flux material to provide deep weld penetration by a GTAW welding machine. Notches in the consumable weld ring allow for visual inspection of tube fit prior to weld.
    Type: Grant
    Filed: July 17, 2014
    Date of Patent: April 4, 2017
    Inventors: Denny L. Quinn, Alan W. Braun, Brian S. Luigs, Earl L. Young
  • Apparatus and method for welding steel boiler tubes
    Publication number: 20100181759
    Abstract: Apparatus and method for welding steel boiler tubes in a space restricted area using a pulsed-arc welding process. The process includes the use of a consumable insert ring having a T-shaped profile and flux material to provide deep weld penetration by a GTAW welding machine. Notches in the consumable weld ring allow for inspection of tube fit prior to weld.
    Type: Application
    Filed: January 12, 2010
    Publication date: July 22, 2010
    Inventors: Denny L. Quinn, Alan W. Braun, Brian S. Luigs, Earl L. Young