Patents by Inventor HYEONG GEUN AHN

HYEONG GEUN AHN 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).

  • Thermal fatigue crack generator for large pipe
    Publication number: 20220341832
    Abstract: The present invention discloses a thermal fatigue crack generator for a large pipe. According to the present invention, the thermal fatigue crack generator for a large pipe precisely manages and controls the heating and cooling conditions for the large size test pipes having a diameter of 250 to 610 mm to significantly improve the reliability of the accuracy and a reproducibility of the thermal fatigue cycle so that a useful advantage is expected to ensure the reliability and the effectiveness of the skill verification of the non-destructive testing.
    Type: Application
    Filed: January 10, 2020
    Publication date: October 27, 2022
    Inventors: HYEONG GEUN AHN, JAE SEONG KIM