ALEXANDRIA, Va., Oct. 6 -- United States Patent no. 12,752,213, issued on Oct. 6.
"Bubble blowing device" was invented by Zhijiang Li (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A bubble blowing device is provided, which connects an output shaft of a motor and a bubble mesh by providing with a deceleration mechanism. The deceleration mechanism can slow down and stabilize the speed of the bubble mesh while the output shaft is rotated at a high speed, thereby reducing a vibration phenomenon of the bubble mesh during operation and improving the smoothness and reliability of the bubble blowing device. Furthermore, by providing the deceleration mechanism in an length extension direction of the...