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US 10,955,206 B2Granted
Short round lightweight automatic weapon
AssigneeCapco, LLC
InventorsStephen K. Wood, Matt L. Bryner
Life of this patent
Estimating the term…
Abstract
An automatic or semiautomatic rifle having a short-stroke action with multiple firing chambers which are arranged radially around an axis of rotation parallel to the firing bore. The multiple firing chambers reciprocate rearward and forward while the assembly is indexed through a loading, firing, and ejection sequence. Ammunition cartridges are inserted into the forward end of the chambers and subsequently positioned against the rear of a barrel of the rifle for firing.
Claims20
An automatic or semi-automatic rifle, comprising:
- an elongated barrel extending between a muzzle and a rearward face and having a bore extending though the barrel between the muzzle and the rearward face;
- a cup-shaped chamber configured to move between a retracted position spaced from the rearward face of the barrel and a forward position juxtaposed proximate to the rearward face of the barrel, the cup-shaped chamber having:
- a rearward end;
- an open forward end;
- a sidewall extending between the rearward end and the open forward end, wherein the cup-shaped chamber is sized to receive an ammunition casing and wherein the rearward end of the cup-shaped chamber further comprises an aperture aligned with a centerline axis of the cup-shaped chamber;
- a piston bore having a forward end disposed behind the aperture in the cup-shaped chamber;
- and
- a firing piston disposed within the piston bore, the firing piston being movable within in the piston bore between a retracted position and a forward position.
5 more elements
An automatic or semi-automatic rifle, comprising:
- an elongated barrel extending between a muzzle and a rearward face and having a bore extending though the barrel between the muzzle and the rearward face;
- first, second and third cup-shaped chambers defining a chamber assembly disposed about a hub that is configured to rotate relative to the barrel in conjunction with movement between a retracted position spaced from the rearward face of the barrel and a forward position juxtaposed proximate to the rearward face of the barrel, each cup-shaped chamber having:
- a rearward end;
- an open forward end;
- and
- a sidewall extending between the rearward end and the open forward end, wherein the cup-shaped chamber is sized to receive an ammunition casing;
- and
- a shaft connecting the hub of the chamber assembly to the barrel, wherein the chamber assembly rotates about the shaft and moves along the shaft between the retracted position and the forward position.
5 more elements
An automatic or semi-automatic rifle, comprising:
- an elongated barrel extending between a muzzle and a rearward face and having a bore extending though the barrel between the muzzle and the rearward face;
- a cup-shaped chamber configured to move between a retracted position spaced from the rearward face of the barrel and a forward position juxtaposed proximate to the rearward face of the barrel, the cup-shaped chamber having:
- a rearward end;
- an open forward end;
- a sidewall extending between the rearward end and the open forward end, wherein the cup-shaped chamber is sized to receive an ammunition casing;
- and
- a slide breech connected to a rearward end of the cup-shaped chamber, wherein the slide breech houses a firing piston disposed within a piston bore, the firing piston being movable within in the piston bore between a retracted position and a forward position.
4 more elements
Dependencies are inferred from the claim text.