ALEXANDRIA, Va., Nov. 3 -- United States Patent no. 12,781,854, issued on Nov. 3, was assigned to ARRAYED MATERIALS (CHINA) Co. LTD. (Shenzhen, China).

"O-ring vacuum sealing structure and vacuum apparatus" was invented by Hong Sheng Yang (Shenzhen, China) and Xiaojun Zhang (Shenzhen, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are an O-ring vacuum sealing structure, and a vacuum apparatus that includes the O-ring vacuum sealing structure. The O-ring vacuum sealing structure includes O-ring vacuum sealing structure, including a vacuum sealing assembly, and an O-ring; wherein, the vacuum sealing assembly has an O-ring groove; the O-ring is arranged within the O-ring groove; and the O-ring v...