ALEXANDRIA, Va., March 12 -- United States Patent no. 12,247,803, issued on March 11.
"Crossbow with inertia brake cocking device" was invented by James J. Kempf (Coralville, Iowa).
According to the abstract* released by the U.S. Patent & Trademark Office: "A crossbow with an inertia brake cocking device preferably utilizes a one-way bearing to control rotation of the drive unit used to wind (take-up) an elongated connecting device. Functional properties of an inertia brake mechanism (IBM) are well known. In its simplest form, an IBM has at least a first plate floating within a cavity, the first plate having a protrusion along an edge, and the cavity having recesses radially about its perimeter. Under controlled rotation in either directi...