ALEXANDRIA, Va., Sept. 30 -- United States Patent no. 12,427,528, issued on Sept. 30, was assigned to JDC Corp. (Tokyo).
"Rotary crushing apparatus" was invented by Yuu Sato (Tokyo), Shingo Mizutani (Tokyo) and Hiroshi Obata (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A rotary crushing apparatus includes a container (including a stationary drum, a rotating drum, and a top plate) into which a processing object containing raw material soil is fed. A rotating shaft extends in the vertical direction, and an impact member rotates in the rotating drum by the rotation of the rotating shaft to crush the processing object. Then, the rotating shaft is provided in such a way as to penetrate the top plate 10a,...