ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,521,854, issued on Jan. 13, was assigned to MILWAUKEE ELECTRIC TOOL Corp. (Brookfield, Wis.).
"Gas spring-powered fastener driver with pressure mechanism" was invented by David A. Bierdeman (New Berlin, Wis.), Troy C. Thorson (Cedarburg, Wis.), Jacob N. Zimmerman (Pewaukee, Wis.), Andrew R. Wyler (Pewaukee, Wis.), Travis W. Leathrum (Milwaukee), David C. Graf (Greendale, Wis.) and Alex J. Brasel (Greenfield, Wis.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A gas spring-powered fastener driver includes a cylinder, a storage chamber cylinder having pressurized air in communication with the cylinder, a moveable piston positioned within the cylinder, a d...