Cartridge for light-weighted projectiles

Inactive Publication Date: 2012-04-12
CRONEMBERGER PEDRO DE OLIVEIRA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0007]The main advantage of the present invention in relation to the prior art is the possibility of using the cartridge in a non-modified standard firearm.
[0008]The present invention is a firearm cartridge which propels a light-weighted projectile together with a collapsing capsule and an inert load of high density metal powder.
[0011]b) a new ammunition is loaded in the chamber.
[0015]Both factors work together. Generally, it's not possible to reach an appropriate pressure if one of these factors is not correctly set up. It means that, if the projectile's mass is not large enough, the firearm will not cycle; and doesn't matter the amount of propellant whic

Problems solved by technology

Generally, it's not possible to reach an appropriate pr

Method used

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  • Cartridge for light-weighted projectiles
  • Cartridge for light-weighted projectiles
  • Cartridge for light-weighted projectiles

Examples

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Example

[0032]A cartridge that propels a light-weighted projectile (1) comprises a standard cartridge case (6), which contains a standard primer (7) and a load of propellant (5); a collapsing capsule which is divided in multiple parts (3); an inert load of metal powder (2); and a projectile(1).

[0033]As can be seen in FIG. 1, the cartridge of this invention comprises a collapsing capsule, which is divided in multiple parts (3). These parts (3) are assembled together in the case (6), hermetically, forming the collapsing capsule. The collapsing capsule carries inside an inert load of metal powder (2). The capsule parts (3) are radially restrained and kept assembled with interference by the cartridge case (6) before it is fired. FIG. 4 shows the cartridge assembly in a perspective view. The embodiment of FIG. 4 is the same of FIGS. 1, 2 and 3. In this embodiment, the collapsing capsule consists of two petal shaped parts (3) and a capsule base (4) which are kept together by an interference assem...

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Abstract

A cartridge that can fire a light-weighted projectile, producing a pressure curve of the propellant gases similar to the pressure curve generated by the shot of a heavy weighted lead-core projectile. The cartridge propels the light-weighted projectile together with a capsule, which contains an inert load of high density metal powder. The capsule is divided in multiple parts, which disassemble when it leaves the firearm muzzle, spreading the metal powder in the air. The metal powder increases the mass which is accelerated by the propellant gases, keeping the pressure curve high enough to cycle a self-loading firearm mechanism. The metal powder consists of very thin particles which spreads and decelerates rapidly in the air, causing a controllable level of danger to personnel.

Description

BACKGROUND OF THE INVENTION[0001]The present invention relates to cartridges designed to propel light-weighted projectiles. This kind of cartridge is widely used for combat simulation and training When said light-weighted projectile is a capsule filled with paint, the cartridge is named marker. Marker cartridges can be used to simulate combat situations with real firearms between infantry or police trainees.[0002]The main problem related to such cartridges is the fact that firearms are designed to operate with heavy lead-core projectiles. When the standard projectile is replaced by a light-weighted one, the internal ballistics is deeply affected and the pressure of the propellant gases falls to very low levels. If the firearm is self-loading, it means automatic or semi-automatic, the propellant gases will not generate enough energy to cycle the firearm mechanism when firing a light-weighted projectile.[0003]To overcome this problem, the solutions given by the prior art use two appro...

Claims

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Application Information

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IPC IPC(8): F42B8/02F42B12/40
CPCF41A1/06F42B14/064F42B8/12F42B8/10
Inventor CRONEMBERGER, PEDRO DE OLIVEIRA
Owner CRONEMBERGER PEDRO DE OLIVEIRA
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