Abstract

The tracer projectile having a closure disk assembly is described. The tracer projectile includes a projectile base with a tracer cavity formed therein. A pyrotechnic charge is pressed into the tracer cavity and is ignitable by burning propellant such that a trajectory of the projectile is visible when fired. A closure disk assembly covers and seals the tracer cavity. A crown of the closure disk assembly is supported on a ring flange formed by an annular groove in the projectile base. A sidewall of the closure disk assembly surrounds the ring flange. A retaining element is disposed in the annular groove and engages a rim of the closure disk assembly for securing the closure disk assembly to the projectile base over the tracer cavity.

IPC Classes  ?

• F42B 12/38 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect for signalling of tracer type

Abstract

Nonlethal cartridges adapted to be chambered in a firearm having a barrel that includes rifling are provided. In one example, the cartridge includes a cartridge case and a sabot that is telescopically coupled to the cartridge case and that has a sabot mouth. A projectile includes a polymer base projectile portion disposed in the sabot mouth. A polymer front shell projectile portion is coupled to the polymer base projectile portion and has an outer surface that includes a circular locking rib feature that forms an interference fit with the sabot mouth. The polymer base projectile portion is configured to engage the rifling of the barrel to impart spin stabilization to the nonlethal projectile when propelled from the sabot in response to the expansion of a propellant gas.

IPC Classes  ?

• F42B 14/06 - Sub-calibre projectiles having sabots; Sabots therefor
• F42B 8/04 - Blank cartridges, i.e. primed cartridges without projectile but containing an explosive or combustible powder charge

Abstract

A conversion kit for a firearm of the type having a removable component is disclosed. The conversion kit includes a chamber piece having a coupling end, and a muzzle piece of a conversion barrel having a coupling end configured to be secured to the coupling end of the chamber piece and an engagement end. The engagement end is configured to mate with the removable component such that manipulation of the removable component causes the coupling end of the muzzle piece of the conversion barrel to be secured to the coupling end of the chamber piece.

IPC Classes  ?

• F41A 33/00 - Adaptations for training; Gun simulators
• F41A 11/02 - Modular concepts, e.g. weapon-family concepts
• F41A 21/00 - Barrels or gun tubes; Muzzle attachments; Barrel mounting means

Abstract

A marking projectile configured to be fired through the barrel of a firearm having rifling formed therein is provided. The marking projectile includes a polymeric base portion configured to engage the rifling of the barrel and a polymeric front shell portion coupled to the base portion. The polymeric front shell portion has a cavity formed therein for housing a marking compound and a structure configured to deform on impact and thereby release the marking compound. The marking projectile includes a metallic annular sealing component (e.g., a crimped metal ring) configured to seal the polymeric front shell portion to the polymeric base portion.

IPC Classes  ?

• F42B 8/02 - Cartridges
• F42B 8/08 - Dummy cartridges, i.e. inert cartridges containing neither primer nor explosive or combustible powder charge

Abstract

The present device disclosed is a reduced energy training cartridge for use in a straight blowback operated firearm. Prior art reduced energy ammunition casings are often made with brass. However, brass is relatively expensive for reduced energy cartridge case applications. Thus, there exists a need for a reduced energy training round which employs inexpensive materials while simultaneously providing a simple and robust design which can easily be manufacture on a large scale. The present device comprises a barrel with firing chamber, the cartridge comprising a cartridge case (20) being defined by a rear portion (21 ) with an external groove (22), a front portion having a velocity reduction structure (30) and a wall with an outer surface and an inner surface, a sabot (50) slideably engaged within the cartridge case, the sabot having a rear portion (56) with an outside diameter substantially equal to the inside diameter of the inner surface of the cartridge case and which contains a gas sealing ( 51 ) and braking structure and a primer (40) disposed in the rear portion of the cartridge case where, upon percussion of the primer, the cartridge case rapidly slides relative to the sabot until such point when the velocity reduction structure of the cartridge case engages with the sealing and braking structure of the sabot, thereby stopping further movement of the cartridge case relative to the sabot. The present device also contemplates using a metallic case in combination with a non-metallic or polymer sabot.

IPC Classes  ?

• F42B 8/04 - Blank cartridges, i.e. primed cartridges without projectile but containing an explosive or combustible powder charge
• F42B 10/48 - Range-reducing, destabilising or braking arrangements; Fall-retarding means
• F42B 14/06 - Sub-calibre projectiles having sabots; Sabots therefor

Abstract

A primer composition with reduced toxicity suited for reduced-energy ammunition comprises bismuth (III) oxide as the principal oxidizer and contains a portion of propellant composition mixed therein. This composition may also be used in a cartridge which is otherwise substantially free of any other propellant compound and preferably produces a residue which is substantially free of toxic substances.

IPC Classes  ?

• C06C 7/00 - Non-electric detonators; Blasting caps; Primers
• C06B 25/00 - Compositions containing a nitrated organic compound
• C06B 33/00 - Compositions containing particulate metal, alloy, boron, silicon, selenium or tellurium with at least one oxygen supplying material which is either a metal oxide or a salt, organic or inorganic, capable of yielding a metal oxide
• F42B 12/72 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the material
• F42B 8/12 - Projectiles or missiles

Abstract

A fuze setting circuit in an artillery or tank shell having a case with a press- fitted head assembly is provided with an electromechanical fuze-wiring link that is completed electrically by mechanical assembly of a tracer-carrying projectile on the shell casing, and by the rotational attachment of a programmable fuze onto the projectile.

IPC Classes  ?

• F42B 5/02 - Cartridges, i.e. cases with propellant charge and missile
• F42B 12/02 - Projectiles, missiles or mines characterised by the warhead, the intended effect, or the material characterised by the warhead or the intended effect
• F42C 19/00 - AMMUNITION FUZES; ARMING OR SAFETY MEANS THEREFOR - Details of fuzes