ALEXANDRIA, Va., Feb. 11 -- United States Patent no. 12,546,559, issued on Feb. 10, was assigned to Crosman Corp. (Bloomfield, N.Y.).
"Crank-operated airgun with cable and cam system" was invented by Paul Trpkovski (Kailua Kona, Hawaii).
According to the abstract* released by the U.S. Patent & Trademark Office: "An airgun pressure system as described herein includes a pressure chamber comprising a cylinder extending along a length of an axis of the airgun parallel with an axis of a barrel of the airgun. The airgun also includes a piston disposed within the pressure chamber and translatable along a length of the cylinder to pressurize gas in the pressure chamber in response to an increase in force applied to the piston. The airgun also inc...