ALEXANDRIA, Va., June 25 -- United States Patent no. 12,339,086, issued on June 24.
"Hydraulic dampened high mass rotary barrel recoil system for handgun" was invented by Frederick Edmond Craig (Hutchinson, Kan.).
According to the abstract* released by the U.S. Patent & Trademark Office: "A hydraulically dampened rotary barrel locking system for a handgun is provided which preferably includes a receiver, a barrel and a spring-loaded moveable slide. The barrel comprises one or more axially aligned locking lugs configured to allow the slide to travel down the barrel axis when the lugs align with a keyway slot in an extended lug boss at the discharge end of the slide. Felt recoil is reduced and accuracy is improved due to a more balanced sli...