ALEXANDRIA, Va., March 19 -- United States Patent no. 12,251,353, issued on March 18.
"Rotary massage device" was invented by Zhengping Liu (Jiangxi, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A driving mechanism includes a driving piece, a rotating shaft and a first conductive piece. The driving piece is connected to the rotating shaft to drive the rotating shaft to rotate. The first conductive piece is sleeved on the rotating shaft. The rotating mechanism includes a first housing, an electric component, and a second conductive piece. The first housing is connected to the rotating shaft. The electric component is mounted on the first housing. The electric component is electrically connected to the...