Hydraulic dampened high mass rotary barrel recoil system for handgun
OwnerFrederick Edmond Craiginventor
Life of this patent
Estimating the term…
Abstract
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 slide-to-barrel mass ratio than prior art and hydraulic dampening between the barrel and slide due to improved journal bearing action.
Claims18
A rotary-locking firearm comprising:
- a frame;
- a slide removably mounted to the frame and configured to move from a forward position to a rearward position along the axial length of a barrel, comprising a rear end and a discharge end, a barrel bore operable to receive a barrel, and an extended lug boss with a front face and a rear face disposed outside said barrel bore and at said discharge end;
- wherein expanding propellant gases from a fired cartridge force said slide rearward, and
- wherein said extended lug boss comprises a keyway slot configured to guide the barrel after the firearm unlocks;
- a rotary locking barrel comprising an external surface, an inner bore, a discharge end, a rear end, a control rail lug of defined length which rests against the rear face of said extended lug boss when the firearm is in the full battery position;
- and
- a cam assembly operable to facilitate the axial rotation and disengagement of said rotary locking barrel from said slide as the rotary locking barrel and slide move rearward under recoil from a fired cartridge.
A rotary-locking firearm comprising:
- a frame;
- a rotary-locking barrel comprising an external surface, an inner bore, a discharge end, a rear end, and a control rail lug of a defined length,
- wherein said barrel further comprises a barrel locking lug proximal to the discharge end of said barrel;
- a spring-loaded mobile slide comprising a slide bore operable to receive said barrel, a rear end, a discharge end, and an extended lug boss disposed at said discharge end,
- wherein said slide is operable to move along the axial length of said barrel, and
- wherein said extended lug boss further comprises a slide locking slot proximal to the discharge end of said slide, said slide locking slot operable to receive said barrel locking lug, and
- wherein said extended lug boss further comprises a keyway slot operable to receive said control rail lug and said barrel locking lug, and
- wherein expanding propellant gases from a fired cartridge force said slide rearward along said barrel when said firearm is fired;
- and
- a cam assembly operable to facilitate axial barrel rotation as said slide and said barrel move rearward under recoil from a fired cartridge.
A method for delaying unlocking and buffering of recoil forces in an autoloading firearm, the method comprising the steps of:
- providing a firearm with a receiver for chambering an ammunition cartridge, a trigger mechanism configured to ignite said ammunition cartridge, a barrel with a rear end and a discharge end, a control rail lug attached to said barrel, a barrel locking lug attached to said barrel and axially aligned with said control rail lug, a spring-loaded mobile slide operable to move along the axial length of said barrel, and a cam assembly operable to facilitate axial barrel rotation as said slide and said barrel move rearward under recoil from a fired cartridge,
- said slide further comprising an extended lug boss comprising a locking lug slot operable to receive said barrel locking lug, and
- said extended lug boss further comprising a keyway slot operable to receive said control rail lug and said barrel locking lug, and
- producing expanding propellant gases having a pressure within said cartridge chamber upon igniting said ammunition cartridge;
- rotating said barrel to unlock said slide by aligning said control rail lug and said barrel locking lug with said keyway slot;
- sliding said slide toward the rear end of said barrel;
- and
- opening a breech and discharging the ammunition cartridge casing.
Dependencies are inferred from the claim text.