US Patent Issued to CHINA MCC5 GROUP on April 29 for "Method for reducing blasting vibration of tunneling" (Chinese Inventors)

ALEXANDRIA, Va., June 9 -- United States Patent no. 12,287,187, issued on April 29, was assigned to CHINA MCC5 GROUP CORP. LTD (Sichuan, China).

"Method for reducing blasting vibration of tunneling" was invented by Yixin Luo (Sichuan, China) and Li Luo (Sichuan, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method for reducing blasting vibration of tunneling includes the steps of: dividing the cutting holes into several groups according to different cutting methods; conducting layout and test blasting on one group of cutting holes; testing blasting parameters for the layout and test blasting; calculating an interval t; conducting layout and test blasting on at least two groups of cutting holes again...