US Patent Issued to TOKUYAMA on Feb. 24 for "Method for compression of aqueous slurry containing solid foreign matter and paper dust, and treatment method of waste gypsum board" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 24 -- United States Patent no. 12,559,380, issued on Feb. 24, was assigned to TOKUYAMA Corp. (Yamaguchi, Japan).

"Method for compression of aqueous slurry containing solid foreign matter and paper dust, and treatment method of waste gypsum board" was invented by Shingo Hiranaka (Shunan, Japan) and Kentarou Matsuo (Shunan, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "Aqueous slurry which includes solid foreign matter and paper dust is pressed by means of a screw press, provided with a mesh having openings not less than 1.5 mm and not greater than 3 mm, to separate the aqueous slurry into the solid foreign matter and the paper dust, and liquid component passing through the mesh. T...