ALEXANDRIA, Va., July 14 -- United States Patent no. 12,679,710, issued on July 14, was assigned to Shenzhen Yingchuanghui Investment Co. Ltd. (Shenzhen, China).
"Mason jar sealing device" was invented by Min Qiu (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a mason jar sealing device, including a main machine and an adapter component. The separation plate is provided in the main machine, a through hole is provided in the separation plate, the through hole is connected to an extraction tube of a vacuum pump, and the separation plate is provided with a peripheral bone and an inner peripheral bone arranged concentrically on a side of a sleeve. The adapter component includes a stra...