US Patent Issued to DOOSAN ENERBILITY on Dec. 2 for "Opening maching apparatus for heat transfer tube, method of forming opening in tube wall of heat transfer tube using same, and method of removing foreign material through same opening of same heat transfer tube" (South Korean Inventors)

ALEXANDRIA, Va., Dec. 2 -- United States Patent no. 12,485,462, issued on Dec. 2, was assigned to DOOSAN ENERBILITY Co. LTD (Changwon, South Korea).

"Opening maching apparatus for heat transfer tube, method of forming opening in tube wall of heat transfer tube using same, and method of removing foreign material through same opening of same heat transfer tube" was invented by Hyun Sang Kong (Changwon, South Korea), Jae Bong Lee (Changwon, South Korea), Yoo Yang (Daejeon, South Korea), Sang Beom Nam (Daejeon, South Korea), Gyeong Hee Nam (Daejeon, South Korea) and Ho Sung Lee (Daejeon, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The opening machining apparatus for the heat transfer tube includes...