IP Library › Granted Patent US 12,442,624
Granted Patent B2
US 12,442,624 · App. 18/944,817 · Granted Oct 14, 2025

Integrated ammunition cartridge

Inventors: Boris Murarash (Ramat Hasharon, IL); Ariel Gershonsky (Ramat Hasharon, IL)
Assignee: IMI SYSTEMS LTD.
F42B5/067F42B5/28
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Quick Facts
Patent No.
US 12,442,624
App. No.
18/944,817
Granted
Oct 14, 2025
Kind
B2
Abstract

According to some embodiments of the present invention, an ammunition cartridge is provided herein. The ammunition cartridge may include a cartridge enclosure comprising a cartridge case portion and a jacket portion, wherein the jacket portion is configured to accommodate at least one projectile filling; and a base, connectable to the cartridge enclosure, wherein the base comprises an ignition device, wherein the cartridge enclosure comprises a section configured to control the detachment of at least some of the jacket portion from the cartridge case. According to some embodiments of the present invention, another ammunition cartridge is provided herein. The ammunition cartridge may include: a cartridge case portion; and a jacket portion, wherein the jacket portion is configured to accommodate at least one projectile filling, wherein the jacket portion is made of at least one of: polymer material, and composite material.

Claims (22)

1. An ammunition cartridge comprising:

a cartridge enclosure comprising a cartridge case portion and a jacket portion, wherein the jacket portion is configured to accommodate at least one projectile filling and wherein the jacket portion of the cartridge enclosure is open at the side of the projectile filling facing a base, wherein the cartridge case portion is suitable for accommodating propellent powder; and

the base, connectable to the cartridge enclosure, wherein the base is configured to accommodate an ignition device, wherein the base is a distinct element from the cartridge enclosure,

wherein the cartridge enclosure comprises a detachment section, wherein the projectile filling comprises a first portion facing the base radially extending outward into a shoulder that engages with the jacket portion at the detachment section, and a second portion which reduces in diameter in shot direction

such that, during firing of the ammunition cartridge, due to pressure forces applied on the detachment section by the propellant powder during combustion thereof, at least some of the jacket portion is detached from the cartridge enclosure and remains attached to the at least one projectile filling, forming together a projectile to be shot towards a target.

2. The ammunition cartridge of claim 1 , wherein the jacket portion of the cartridge enclosure is open at the side of the projectile filing opposite to the base.

3. The ammunition cartridge of claim 1 , wherein the jacket portion accommodates the at least one projectile filling.

4. The ammunition cartridge of claim 1 , wherein the jacket portion is configured to accommodate at least two projectile fillings.

5. The ammunition cartridge of claim 1 , wherein the jacket portion is configured to accommodate a projectile filling as a full caliber or a sub caliber projectile.

6. The ammunition cartridge of claim 1 , wherein the cartridge enclosure comprises at least one of: a polymer, a composite material, and a metal.

7. The ammunition cartridge of claim 1 , wherein the cartridge enclosure is manufactured by at least one of: injection, mold injection, over-mold injection, extrusion, casting, plastic processing, metal forming, machining, and 3D printing.

8. The ammunition cartridge of claim 1 , wherein the section comprises a groove.

9. The ammunition cartridge of claim 1 , wherein the detachment section comprises a connecting area of different materials or transition area of various manufacturing conditions.

10. The ammunition cartridge of claim 1 , wherein the detachment section comprises a dedicated material having weak structure compared to the cartridge enclosure materials.

11. An ammunition cartridge comprising:

a cartridge case portion suitable for accommodating propellent powder; and

a jacket portion, wherein the jacket portion is configured to accommodate at least one projectile filling and wherein the jacket portion of the cartridge enclosure is open at the side of the projectile filling facing a base,

wherein the jacket portion is made of at least one of: polymer material, and composite material,

wherein the cartridge case portion is connectable to the base which is suitable for accommodating an ignition device, wherein the base is a distinct element from the cartridge case portion, and

wherein the cartridge enclosure comprises a detachment section, wherein the projectile filling comprises a first portion facing the base radially extending outward into a shoulder that engages with the jacket portion at the detachment section, and a second portion which reduces in its diameter in shot direction,

such that, during firing of the ammunition cartridge, due to pressure forces applied on the detachment section by the propellant powder during combustion thereof, at least some of the jacket portion is detached from the cartridge enclosure and remains attached to the at least one projectile filling, forming together a projectile to be shot towards a target.

12. The ammunition cartridge according to claim 11 , wherein the cartridge case portion and the jacket portion form together an enclosure which comprises a detachment section configured to control the detachment of at least some of the jacket portion from the cartridge portion.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 24, 2024
From: MURARASH, BORIS; GERSHONSKY, ARIEL
To: IMI SYSTEMS LTD.
Reel/Frame 069672/0350 →
Priority Claims (1)
IL 292942 · May 11, 2022 · national
Continuity (2)
Continuation PCTIL2023050483 · May 10, 2023
Related Publication 20250067544A1 · Feb 27, 2025
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