ALEXANDRIA, Va., March 17 -- United States Patent no. 12,576,591, issued on March 17, was assigned to JF POLYMERS (SUZHOU) Co. LTD. (Suzhou, China).
"Automatic filament ending device" was invented by Guan Li (Suzhou, China).
According to the abstract* released by the U.S. Patent & Trademark Office: "A device for fixing a tail end of a filament to a filament spool is provided. The device includes a filament threading module having a filament feeding module and a filament guide mechanism. The filament feeding module is configured to clamp the filament and pass the tail end of the filament through a first threading hole on the filament spool. And the filament guide mechanism including a filament guide assembly is used to guide the tail end t...