ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,652, issued on Jan. 13, was assigned to ISHIGAKI COMPANY Ltd. (Tokyo).
"Filter cloth cleaning method of filter press" was invented by Daisuke Yamamoto (Kagawa, Japan), Koji Hara (Kagawa, Japan) and Shoji Motoya (Kagawa, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A method of cleaning a filter cloth of a filter press including a first cleaning nozzle and a second cleaning nozzle which jet cleaning liquid from positions upper right and left of the filter cloth toward respective diagonal corners of the filter cloth, the method including: jetting the cleaning liquid from only the first cleaning nozzle; and jetting the cleaning liquid from only ...