Projectile
First Claim
1. A caseless projectile for firing out of a barrel of a small arms weapon, the barrel being made of a barrel material and having an inner diameter, the projectile comprising:
- a substantially cylindrical body with first and second axially opposite ends and a cavity extending between the first end and the second end for holding a quantity of propellant, the first end being closed by a nose integral to the body, the cylindrical body having a first outer diameter which is less than the inner diameter of the barrel, the cylindrical body being made of a first material;
at least two seals extending about an outer circumferential surface of the body, a primer for igniting the propellant, the primer being supported by the cylindrical body and located inboard of the second end of the cylindrical body, the primer being centrally disposed about a longitudinal axis of the cylindrical body;
each seal protruding radially from the body to form a substantial seal against an inner circumferential surface of the barrel and having a second outer diameter greater than the first outer diameter and equal to or greater than the inner diameter of the barrel, the at least two seals being made of a second material;
each seal being in the form of an individual ring, the seals being spaced apart along the cylindrical body with a portion of the cylindrical body between the seals being exposed; and
wherein the second material is softer than the barrel material, and the first material is harder than the second material.
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Accused Products
Abstract
A projectile (10) comprises a cylindrical body (12) with a first (leading) end (14) and a second trailing axially opposed end (16). An internal cavity (18) is formed between the ends (14 and 16) and holds a volume of propellant material (22). The first end (14) is closed by a nose (20) that is fixed to the body (12). The end (14) is sealed with a base seal (26) that seats a primer (24) for igniting the propellant (22). The primer (24) is located inboard of the second end (16) and the base seal (26) to reduce the likelihood of accidental activation. Seals (30) are formed about the body (12) for maintaining gas pressure of deflagrating propellant. The seals (30) may be formed integrally with the body (12) or separately from the body (12) and seated in respective grooves (40) formed circumferentially about the body (12). Also disclosed is a breech sleeve (810) shaped to complement the breech of the weapon and a throughway (816) defined by an internal surface, the projectile being able to pass through the throughway (816).
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Citations
19 Claims
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1. A caseless projectile for firing out of a barrel of a small arms weapon, the barrel being made of a barrel material and having an inner diameter, the projectile comprising:
- a substantially cylindrical body with first and second axially opposite ends and a cavity extending between the first end and the second end for holding a quantity of propellant, the first end being closed by a nose integral to the body, the cylindrical body having a first outer diameter which is less than the inner diameter of the barrel, the cylindrical body being made of a first material;
at least two seals extending about an outer circumferential surface of the body, a primer for igniting the propellant, the primer being supported by the cylindrical body and located inboard of the second end of the cylindrical body, the primer being centrally disposed about a longitudinal axis of the cylindrical body; each seal protruding radially from the body to form a substantial seal against an inner circumferential surface of the barrel and having a second outer diameter greater than the first outer diameter and equal to or greater than the inner diameter of the barrel, the at least two seals being made of a second material;
each seal being in the form of an individual ring, the seals being spaced apart along the cylindrical body with a portion of the cylindrical body between the seals being exposed; and
wherein the second material is softer than the barrel material, and the first material is harder than the second material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
- a substantially cylindrical body with first and second axially opposite ends and a cavity extending between the first end and the second end for holding a quantity of propellant, the first end being closed by a nose integral to the body, the cylindrical body having a first outer diameter which is less than the inner diameter of the barrel, the cylindrical body being made of a first material;
Specification