ALEXANDRIA, Va., Aug. 26 -- United States Patent no. 12,397,739, issued on Aug. 26, was assigned to AUTOLIV DEVELOPMENT AB (Vargarda, Sweden).

"Belt retractor" was invented by Ronald Jabusch (Elmshorn, Germany).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a belt retractor comprising a belt shaft (5), which is mounted rotatably in a frame (1) and on which a safety belt can be wound, and a force-limiting unit (61) which, when activated, enables a rotational movement of the belt shaft (5) in the extension direction of the safety belt, wherein the force-limiting unit (61) comprises an electric motor (4) and a first blocking device, and the first blocking device is configured to ...