ALEXANDRIA, Va., June 6 -- United States Patent no. 12,281,739, issued on April 22.
"Quick connector structure" was invented by Chao-Chi Chen (Changhua, Taiwan) and Shen-En Chiang (Taichung, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A quickconnect structure having a fitting connector, a connector, and U-shaped positioning snap pin. The fitting connector has a connector part, a fitting connector body part coupled to the connector part, and a fitting part coupled to the fitting connector. The connector part, the fitting connector body part, and the fitting part define a fitting hole extending therethrough, and the fitting part defines positioning groove, a longitudinal snap hole, and a side snap op...