ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,317, issued on April 29.
"Water sampler" was invented by Jongyoul Choi (Seoul, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "The present disclosure relates to a water sampler comprising: a container which is open at the top thereof; a first stopper which comprises a first upper plate and a first wall and has a drain outlet; a second stopper which comprises a second upper plate and a second wall; an elastic member which is disposed between the first upper plate and the second upper plate; a weight which is disposed at the bottom of the container; and a fixing member to which a second rope is connected, whereby water sampling and temperatu...