US Patent Issued to Chongqing Jiaotong University on Aug. 19 for "Efficient and energy-saving blasting method based on notched blast hole" (Chinese Inventors)

ALEXANDRIA, Va., Aug. 20 -- United States Patent no. 12,392,594, issued on Aug. 19, was assigned to Chongqing Jiaotong University (Chongqing, China).

"Efficient and energy-saving blasting method based on notched blast hole" was invented by Xuefu Zhang (Chongqing, China), Bo Hu (Chongqing, China), Jian Zhang (Chongqing, China), Bo Chu (Chongqing, China), Chunlong Wang (Chongqing, China), Peiheng Guo (Chongqing, China) and Qiusheng Deng (Chongqing, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "An efficient and energy-saving blasting method based on a notched blast hole includes forming a cutting hole, an auxiliary hole, and a peripheral hole on a surface of an area to be blasted separately by means of a...