ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,302, issued on Jan. 27, was assigned to GUANGZHOU MINO EQUIPMENT Co. LTD. (Guangdong, China).
"Multi-layer conveying system" was invented by Longyu Zhong (Guangdong, China), Kaidong Huang (Guangdong, China), Bangchao Qiu (Guangdong, China), Qing Li (Guangdong, China) and Meng Yang (Guangdong, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A multi-layer conveying system, comprising a trolley, two lifting devices and a multi-layer working assembly, wherein the multi-layer working assembly comprises a plurality of working stations; and each working station comprises a first guide rail assembly, a first driving assembly, a lateral positioning asse...