ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,408,584, issued on Sept. 9, was assigned to Nanjing Chervon Industry Co. Ltd. (Nanjing, China).
"Dual blade assembly for a lawn mower" was invented by Haishen Xu (Nanjing, China), Toshinari Yamaoka (Nanjing, China) and Jian Yang (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lawn mower includes a blade assembly configured to perform a cutting function, a deck formed with an accommodation space for accommodating at least a portion of the blade assembly, a motor configured to drive the blade assembly to rotate about a rotation axis, and a battery pack configured to power the motor. The blade assembly includes a first cutting portion con...