ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,862, issued on Jan. 13, was assigned to TKR Spezialwerkzeuge GmbH (Gevelsberg, Germany).
"Hand-held pulling and compression device" was invented by Torsten Kreischer (Wetter, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a hand-held pulling and compression device for driving interchangeable tools, with a drive unit with a battery-operated electric motor, a screw drive with a threaded spindle mounted rotatably on a housing body and a threaded nut mounted rotatably on the threaded spindle and non-rotatably on the housing body via a bearing unit, and a coupling unit connected to a tool holder for transmitting tensile a...