ALEXANDRIA, Va., July 16 -- United States Patent no. 12,669,401, issued on June 30, was assigned to KOREA RAILROAD RESEARCH INSTITUTE (KRRI) (Uiwang-si, South Korea).
"Rail management device" was invented by Woo Tae Jeong (Hwaseong-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rail management device includes a measurement unit configured to measure upper and lateral profiles of the head portion, and a securing unit fixed to the rail and configured to support and fix the measurement unit, in which the securing unit includes a body connected to the measurement unit, an elastic clamp provided at a lower side of the body and provided to be in close contact with an upper surface of the head por...