ALEXANDRIA, Va., Nov. 18 -- United States Patent no. 12,472,672, issued on Nov. 18.
"Three-dimensional forming device" was invented by Shizan Xu (Shenzhen, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A three-dimensional molding device is provided, which includes a main housing, a feeding mechanism is provided in the main housing; one end of the main housing is connected to a pen head, a heating head is provided in the pen head. The feeding mechanism includes a transmission bracket and a reduction motor. One side of the transmission bracket is rotatably provided with a feeding wheel, a bearing is rotatably provided on one side of the transmission bracket close to the feeding wheel; the reduction moto...