ALEXANDRIA, Va., June 6 -- United States Patent no. 12,280,440, issued on April 22.
"Thread cleaning device" was invented by Yuri Grigoryants (Glendale, Calif.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A thread cleaner comprising an elongated body with a drive end and an open end, with an abrasive section, a scraper section, and a brush section at the open end, the scraper section intermediate the abrasive section and the brush section, the scraper section, and brush sections oriented to apply radial scraping and brushing force to an elongated workpiece positioned in alignment with the thread cleaner's central axis, and the abrasive section oriented to apply abrasive force perpendicular to the thread cl...