ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,857, issued on Jan. 13, was assigned to Nanjing Chervon Industry Co. Ltd. (Nanjing, China).
"Nail gun" was invented by Junliu Zhang (Nanjing, China), Chengyu Zheng (Nanjing, China), Jingdong Hao (Nanjing, China) and Xiaoyong Wang (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A nail gun includes: a housing formed with an accommodating space; a cylinder; a firing assembly capable of moving from an initial position to a firing position; a power output assembly disposed in the accommodating space and used for outputting a driving force; and a drive wheel connected to an output shaft of the power output assembly and used for driving, und...