Energy absorbing and spall mitigating ammunition compartment liner cassette

Patent metadata

Field	Value
Publication number	US-11262172-B2
Application number	US-201715846244-A
Country	US
Kind code	B2
Filing date	Dec 19, 2017
Priority date	Dec 19, 2017
Publication date	Mar 1, 2022
Grant date	Mar 1, 2022

Abstract

An ammunition storage compartment includes a plurality of connected walls defining an interior region to store ammunition, wherein at least one of the walls includes an outer armor plate having an outer surface and an inner surface. A layer of energy absorbing material is located proximate the inner surface of the armor plate in the interior region. A spall mitigating panel is located inward of the layer of energy absorbing material in the interior region. At least one air gap is in between the layer of energy absorbing material and the spall mitigating panel.

First claim

What is claimed is:

1. An ammunition storage compartment comprising:
a plurality of connected walls defining an interior region to store ammunition, wherein at least one of the walls comprises:
an outer armor plate having an outer surface and an inner surface;
a layer of high molecular weight polyethylene and a layer of extreme temperature silicone rubber located proximate the inner surface of the armor plate in the interior region;
a spall-mitigating panel located inward of the layer of energy absorbing material in the interior region; and

one air gap in between the layer of high molecular weight polyethylene and the layer of extreme temperature silicone rubber and the spall-mitigating panel wherein the spall-mitigating panel comprises a plate comprising any of an aramid woven fabric and woven laminate encased in a resin.

2. The ammunition storage compartment of claim 1 , wherein one layer of high molecular weight polyethylene and rubber comprises one of a plurality of high molecular weight polyethylene and rubber layers provided in between the spall-mitigating panel and the inner surface of the outer armor plate.

3. The ammunition storage compartment of claim 2 , wherein the one air gap is positioned in between one of the plurality of high molecular weight polyethylene and rubber layers and another panel selected from the plurality of high molecular weight polyethylene and rubber layers and the spall-mitigating panel.

4. The ammunition storage compartment of claim 2 , wherein the one air gap comprises one of a plurality of air gaps, wherein a respective one of the plurality of air gaps is positioned in between each of the plurality of high molecular weight polyethylene and rubber layers and a neighboring one of the plurality of high molecular weight polyethylene and rubber and in between the spall-mitigating panel and one of the plurality of high molecular weight polyethylene and rubber neighboring the spall-mitigating panel.

Assignees

• U S Army Res Laboratory Attn Rdrl Loc I
• Us Army

Inventors

• Mannix Gregory S

Classifications

• F41H5/04 Primary

  composed of more than one layer {(outerwear resistant to mechanical aggressions A41D31/24; layered products B32B; shaping reinforced articles B29C67/00)} · CPC title

• F42B39/24 Primary

  Shock-absorbing arrangements in packages {, e.g. for shock waves} · CPC title

• F41H5/0485

  all the layers being only fibre- or fabric-reinforced layers · CPC title

• F42B39/14

  Explosion or fire protection arrangements on packages or ammunition (F42B39/20 {and F42B39/24} take precedence; {wall or panel structure of fireproof safes or storage containers E05G1/024}) · CPC title

• F41H5/023

  Armour plate, or auxiliary armour plate mounted at a distance of the main armour plate, having cavities at its outer impact surface, or holes, for deflecting the projectile · CPC title