ALEXANDRIA, Va., June 2 -- United States Patent no. 12,644,550, issued on June 2, was assigned to UNITEST INC (Yongin-si, South Korea).
"Automatic connector for supplying utility" was invented by Hyun Sung Lee (Hwaseong-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Proposed is an automatic coupler for supplying a utility. The automatic coupler includes a first coupling member provided on any one of a utility supplying end or a utility receiving end, and a first valve body provided in the first coupling member and provided with a first check ball elastically supported, a second coupling member provided on the other one of the utility supplying end or the utility receiving end and coupled to t...