ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,544,900, issued on Feb. 10, was assigned to Nanjing Chervon Industry Co. Ltd. (Nanjing, China).
"Power tool" was invented by Qingqing Pei (Nanjing, China), Shubin Tong (Nanjing, China) and Yonghui Cheng (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power tool includes a locking mechanism for locking the output shaft when the output shaft transmits torque to the motor shaft. The locking mechanism includes a shaft lock bracket connected to the output shaft to drive the output shaft; and a damping assembly including a first mounting portion connected to the output shaft, a second mounting portion connected to the shaft lock bracket, and ...