ALEXANDRIA, Va., Jan. 20 -- United States Patent no. 12,528,165, issued on Jan. 20, was assigned to Kyocera Senco Industrial Tools Inc. (Cincinnati).
"Closed system lifter" was invented by Derick C. Robinson (Hillsboro, Ohio) and Christopher D. Klein (Cincinnati).
According to the abstract* released by the U.S. Patent & Trademark Office: "A fastener driving tool that uses pressurized gas to drive a piston that causes a driver blade to force a fastener into a workpiece, and then uses an induction coil to "lift" the piston (as an armature) back toward the top, pre-drive position. The pressurized gas is not vented to atmosphere, but is instead re-used for multiple drive cycles. An optional induction coil can have multiple stages. A more pref...