US Patent Issued to MILWAUKEE ELECTRIC TOOL on April 21 for "Lifter assembly for a powered fastener driver" (Wisconsin Inventors)

ALEXANDRIA, Va., April 21 -- United States Patent no. 12,605,817, issued on April 21, was assigned to MILWAUKEE ELECTRIC TOOL Corp. (Brookfield, Wis.).

"Lifter assembly for a powered fastener driver" was invented by Marcus Wechselberger (Milwaukee), Troy C. Thorson (Cedarburg, Wis.) and David A. Bierdeman (New Berlin, Wis.).

According to the abstract* released by the U.S. Patent & Trademark Office: "A powered fastener driver includes a driver blade movable from a top-dead-center (TDC) position toward a driven or bottom-dead-center (BDC) position for driving a fastener into a workpiece, a gas spring mechanism for driving the driver blade toward the BDC position, and a lifter assembly having a rotary lifter for returning the driver blade fr...