Munitions with shattering penetrator cartridge case

• US 20020005138A1
• Filed: 09/04/2001
• Published: 01/17/2002
• Est. Priority Date: 11/23/2000
• Status: Active Grant

• Current Assignee: Oerlikon Contraves Pyrotec AG
• Original Assignee: Oerlikon Contraves Pyrotec AG
• Inventors: Burri, Jakob
• Granted Patent: US 6,598,536 B2
• Time in Patent Office: Days
• US Class Current: 102/522
• CPC Class Codes: F42B 12/367 Projectiles fragmenting upon impact without the use of explosives, the fragments creating a wounding or lethal effect practice or training projectiles disintegrating upon impact F42B8/14; projectiles of high-explosive type with fragmentation-hull construction F42B12/22
• CPC Class Codes: F42B 12/745 the core being made of plastics; Compounds or blends of plastics and other materials, e.g. fillers
• CPC Class Codes: F42B 30/02 Bullets

Abstract

A cartridge case projectile (10), comprising a cartridge case (12) and a shattering penetrator (14) arranged in the cartridge case (12). The shattering penetrator (14) has a penetrator casing (20), which can be broken into at least two casing sections (22*, 24*) upon impact of the shattering penetrator (14), to which end a predetermined casing breaking area (23*) is respectively arranged between two adjoining casing sections (22*, 24*). A central conduit (30) is arranged in the penetrator casing (20), in which a penetrator core (26) is received, whose core tip element (26.4) projects out of the penetrator casing (20) and constitutes a penetrator tip. The plastic material forming the penetrator core (26) is introduced into the conduit in a flowable state. The penetrator casing (20) is secured against break-up into the casing sections (22*, 24*) by the penetrator core (26).

Claims

1. A cartridge case projectile, having

a cartridge case and

a shattering penetrator arranged in the cartridge case, which has a penetrator casing which,

when the shattering penetrator impacts, can be broken into at least two casing sections, to which end a predetermined casing breaking area is respectively arranged between the adjoining casing sections, and which

has a central conduit, as well as

a penetrator core received in the conduit, whose core tip element protrudes from the penetrator casing and constitutes a penetrator tip,

characterized in that

the material constituting the penetrator core is a plastic material, which has been introduced into the conduit in a flowable state.

2. The cartridge case projectile in accordance with claim 1,

characterized in that

the predetermined casing breaking area is coherent.

3. The cartridge case projectile in accordance with claim 1,

characterized in that

the casing sections, including the core sections received in them, have at least approximately identical masses.

4. The cartridge case projectile in accordance with claim 1,

characterized in that

the predetermined casing breaking areas are constituted by areas of the penetrator casing of reduced casing wall strengths.

5. The cartridge case projectile in accordance with claim 1,

characterized in that

the conduit has diameters, which continuously change over its length.

6. The cartridge case projectile in accordance with claim 1,

characterized in that

the penetrator core has predetermined core breaking areas, which adjoin the predetermined casing breaking areas.

7. The cartridge case projectile in accordance with claim 1,

characterized in that

the shattering penetrator is designed in such a way that a predetermined tip breaking area is formed at the back end of the penetrator tip.

8. The cartridge case projectile in accordance with claim 1,

characterized in that

the penetrator casing is put together from several casing elements.

9. The cartridge case projectile in accordance with claim 8,

characterized in that

the casing elements are directly connected with each other, for example by a screwed connection, soldering, gluing, compression or crimping.

10. The cartridge case projectile in accordance with claim 8,

characterized in that

the casing elements are indirectly connected with each other by means of the cartridge casing.

11. The cartridge case projectile in accordance with claim 1,

characterized in that

the casing elements are made from identical materials, in particular metallic materials,

for example, steel, brass or bronze.

12. The cartridge case projectile in accordance with claim 1,

characterized in that

the plastic material from which the penetrator core is made is a highly heat-resistant plastic material, which is filled, with one of the fillers selected from the group consisting of

glass fibers,

glass beads,

carbon fibers,

powdered mineral rock,

chips, and

powder.

13. The cartridge case projectile in accordance with claim 1,

characterized in that

the conduit has diameters, which discontinuously change over its length.

14. The cartridge case projectile in accordance with claim 9,

characterized in that

the casing elements are indirectly connected with each other by means of the cartridge casing.

15. The cartridge case projectile in accordance with claim 1,

characterized in that

the casing elements are made from different materials, in particular metallic materials,

for example, steel, brass or bronze.