ALEXANDRIA, Va., June 16 -- United States Patent no. 12,305,780, issued on May 20, was assigned to DOAZ INTERNATIONAL HOLDING Ltd. (Wan Chai, Hong Kong).
"Pipe joint assemblies" was invented by Sheng-Hun Jeng (HsinChu, Taiwan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A pipe joint assembly has a gasket, pipes and a receptacle. The gasket has a through hole encircled by protrusions on two sides of the gasket. Each of the pipes has a terminal with grooves on a connecting surface to fit the protrusions of the gasket. The receptacle contains an assembly of the terminals and the gasket. The protrusions have terraces to leave space to induce the effect of the suction cups between the gasket and the pipe."
The...