ALEXANDRIA, Va., April 15 -- United States Patent no. 12,600,022, issued on April 14, was assigned to C. & E. Fein GmbH (Schwaebisch Gmuend-Bargau, Germany).
"Power tool" was invented by Fabian Bek (Boebingen, Germany), Wolfgang Duernegger (Schorndorf, Germany) and Robert Wittlich (Durlangen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "A power tool, wherein a lubricant for gearbox lubrication can be accommodated in a gearbox housing interior of the gearbox housing, wherein the output shaft has a first end on which an insert tool unit can be mounted, and has a second end, wherein the output shaft is designed as a hollow spindle with a cavity. A hollow cylinder section is formed at its second end. A...