ALEXANDRIA, Va., March 31 -- United States Patent no. 12,589,952, issued on March 31, was assigned to TAWI AB (Kungsbacka, Sweden).
"Vacuum lifting tube arrangement having extension-lockable lifting tube" was invented by Niklas Lidberg (Kungsbacka, Sweden).
According to the abstract* released by the U.S. Patent & Trademark Office: "A vacuum lifting tube arrangement is disclosed comprising a lifting tool attached to a flexible lifting tube which is retractable from an extended state and extendible from a contracted state, respectively, and a controllable source of vacuum fluidly connected to an inner volume of the flexible lifting tube, and more particularly additionally comprising a locking mechanism preventing extension of the flexible v...