US Patent Issued to Yaoting Liu on Aug. 19 for "Clutch device, drill chuck, power tool, and bidirectional rotation method of drill chuck" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,390,863, issued on Aug. 19, was assigned to Yaoting Liu (Weihai, China).

"Clutch device, drill chuck, power tool, and bidirectional rotation method of drill chuck" was invented by Yaoting Liu (Weihai, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are a clutch device, a drill chuck, a power tool, and a bidirectional rotation method of the drill chuck. The clutch device comprises a return elastic member, a transmission assembly and a rotating portion, wherein the transmission assembly comprises at least two oppositely arranged engagement portions; the engagement between the two engagement portions enables a front body and a rear body to r...