US Patent Issued to ANHUI NORMAL UNIVERSITY on May 5 for "Experimental device and method for characterization of particle packing gradation" (Chinese Inventors)

ALEXANDRIA, Va., May 5 -- United States Patent no. 12,618,763, issued on May 5, was assigned to ANHUI NORMAL UNIVERSITY (Wuihu, China).

"Experimental device and method for characterization of particle packing gradation" was invented by Yeqing Shen (Wuhu, China), Chao Zhai (Wuhu, China) and Mei Meng (Wuhu, China).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention discloses an experimental device for characterization of particle packing gradation. The device is provided with a filling container with an upper opening, an air-permeable thin plate is arranged in the filling container, the air-permeable thin plate is densely covered with air-permeable round holes, the bottom of the filling contain...