ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,409,503, issued on Sept. 9, was assigned to BESTFA Co. LTD. (Changwon-si, South Korea).
"Method for welding half coil of reactor" was invented by Yuchan Kim (Changwon-si, South Korea) and Taewan Kim (Changwon-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for welding a half coil of a reactor, which performs the gas metal arc welding (GMAW) along a half coil temporarily welded to a welding machine body using an automatic welding machine to increase a formation amount of back beads, thereby increasing coupling strength of the half coil, increasing airtightness of a fluid flowing along the half coi...