Patents by Inventor Edwin Blair Henry, Jr.

Edwin Blair Henry, Jr. 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).

  • Weld inspection system with dual flaw detection
    Patent number: 4055989
    Abstract: A weld inspection system uses fluoroscopic flaw detection particularly sensitive to volumetric type weld flaws and ultrasonic flaw detection particularly sensitive to planar type weld flaws. Both inspections are performed simultaneously throughout the pipe length. Each system marks the pipe with a distinguishing mark to identify the location of the flaw detected by that system. The fluoroscopic system is a high resolution system, the ultrasonic system avoids detection of minor non-rejectable variation in weld bead geometry and is calibrated to a desired sensitivity level.
    Type: Grant
    Filed: March 17, 1976
    Date of Patent: November 1, 1977
    Assignee: United States Steel Corporation
    Inventors: Edwin Blair Henry, Jr., John A. Patsey, Ralph G. Rudolph, Donald G. Schindler