ALEXANDRIA, Va., June 12 -- United States Patent no. 12,296,419, issued on May 13.
"Arrangement of a tightening device for a screw connection and a safety device" was invented by Frank Hohmann (Warstein, Germany) and Jorg Hohmann (Meschede, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A tightening device for a screw connection and a safety device assigned to the tightening device are provided. The screw connection has a bolt and a nut resting on a support surface. The tightening device has a cylinder housing, a hydraulically driven piston arranged in the cylinder housing and moveable along an axis, an exchangeable bush which can be carried on the axis and screwed to the threaded bolt, and a carrier...