ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,655, issued on April 21, was assigned to JINGJIN EQUIPMENT INC. (Dezhou, China).
"Circular plate pulling filter press" was invented by Guozhi Liu (Dezhou, China), Mingjie Yang (Dezhou, China) and Xin Wang (Dezhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A recessed plate filter press for circularly pulling and pushing plates includes a main beam, a thrust plate, multiple filter plates, multiple filter plate handles, multiple plate pulling devices, a push plate, a depressing frame, a chain and multiple sprockets, the thrust plate is arranged on the main beam, and the multiple sprockets are arranged at both ends of the main beam, the chai...