ALEXANDRIA, Va., Dec. 31 -- United States Patent no. 12,510,161, issued on Dec. 30, was assigned to AIGI Environmental Inc. (Nanjing, China).
"Mechanical sealing device for sealing liquid" was invented by Jingwei Zhao (Nanjing, China) and Jun Zhang (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A mechanical sealing device for sealing fluid from escaping a housing through which a rotating shaft is arranged includes a rotatable ring fixed to and disposed about the rotating shaft. A stationary ring is disposed about the rotating shaft, and abuts a stationary ring at a contact point. A peripheral rim is provided and surrounds the rotatable ring and the stationary ring. The peripheral rim defines ...