ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,454,848, issued on Oct. 28, was assigned to Ningbo Eudemon Child Protective Equipment Co. Ltd. (Ningbo, China).
"Child-proof lock" was invented by Binhui Li (Ningbo, China) and Yingfeng Chen (Ningbo, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "The disclosure pertains to a child-proof lock and an unlocking and locking method thereof, the child-proof lock comprises a first lock member and a second lock member, the second lock member is slidably provided on two rod portions of a first rod portion, and the second lock member is displaced outward to disengage from one rod portion, and is then rotated about the other rod portion as an axis of rotatio...