ALEXANDRIA, Va., Sept. 8 -- United States Patent no. 12,728,596, issued on Sept. 8, was assigned to SHENZHEN ANYCUBIC TECHNOLOGY Co. LTD. (Shenzhen, China).
"Filament conveying device and 3D printer" was invented by Jingjie Wang (Shenzhen, China) and Liang Tang (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A filament conveying device includes a feeding device and a discharging channel. A plurality of filaments are supplied to the discharging channel respectively through different feeding channels, thereby reducing a number of times of manual filament changes and greatly improving printing efficiency. Filaments of different colors can be switched for conveying, and a printed model can be of ...