ALEXANDRIA, Va., Oct. 28 -- United States Patent no. 12,448,217, issued on Oct. 21, was assigned to Ambaflex International B.V. (Zwaag, Netherlands).

"Conveying system" was invented by Quincy Straker (Hoorn, Netherlands), Dick Kuin (Wervershoof, Netherlands) and Wouter Balk (Baambrugge, Netherlands).

According to the abstract* released by the U.S. Patent & Trademark Office: "A conveying system has a lower end of a helical path of a conveying section of a first conveyor located at a lower level than a lower end of a helical path of a conveying section of a second conveyor. An upper end of the helical path of the conveying section of the second conveyor is located at a higher level than an upper end of the helical path of the conveying sect...