Patents by Inventor Clarence W. Overby

Clarence W. Overby 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).

  • Dual-gas shielding method
    Patent number: 4166940
    Abstract: The disclosure of the present application relates to an improved method of open-arc welding. According to the present method, the outer shield of a double-shield welding system consists of a stream of gas formed in a shield concentric with the inner shield. This method is distinguished by the fact that atmospheric air may be used as the outer shield gas because the outer-shield velocity is so regulated and so positioned as to prevent the air from being drawn into the weld area, the outer shield gas velocity nearly approximating the inner shield gas velocity.
    Type: Grant
    Filed: October 23, 1978
    Date of Patent: September 4, 1979
    Assignee: Combustion Engineering, Inc.
    Inventors: John J. Barger, Clarence W. Overby