ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,557, issued on March 17, was assigned to NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS (Nanjing, China).
"Melt impregnation device with automatic lifting channel for additive manufacturing filaments" was invented by Jinghua Zheng (Nanjing, China), Zhongde Shan (Nanjing, China), Congze Fan (Nanjing, China), Yiwei Chen (Nanjing, China), Wenzhe Song (Nanjing, China) and Jingxuan Wang (Nanjing, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A composite filament melt impregnation device with an automatic lifting channel for additive manufacturing includes a mechanical lifting device, a heating device, a curved resin impregnation channel, a fi...