# US 8,739,675 B2 · Armor panel system to deflect incoming projectiles

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- Number: US 8,739,675 B2
- Document ID: US8739675B2
- Status: Granted
- Kind: B2
- Application number: 12/288,443
- Filed: 2008-10-20
- Published: 2012-07-26
- Granted: 2014-06-03
- Earliest claimed: 2007-10-19
- Assignees: Hardwire, LLC
- Applicants: George C. Tunis; Scott Kendall; Stephen L. Kinnebrew
- Inventors: George C. Tunis; Scott Kendall; Stephen L. Kinnebrew
- Web page: https://patentgrep.com/patent/US8739675B2

## CPC

- F41H 5/0471: {Layered armour containing fibre- or fabric-reinforced layers (in combination with ceramic layers F41H5/0428, with metal layers F41H5/0457)}
- F41H 5/0478: {Fibre- or fabric-reinforced layers in combination with plastics layers}
- F41H 5/0492: {Layered armour containing hard elements, e.g. plates, spheres, rods, separated from each other, the elements being connected to a further flexible layer or being embedded in a plastics or an elastomer matrix}
- F41H: ARMOUR; ARMOURED TURRETS; ARMOURED OR ARMED VEHICLES; MEANS OF ATTACK OR DEFENCE, e.g. CAMOUFLAGE, IN GENERAL

## Abstract

An armor panel system has a projectile-deflecting section having an outwardly facing surface. The projectile-deflecting section is formed of a material arranged in parallel layers, the layers arranged at a non-parallel angle to the outer surface. The non-parallel angles deflect or rotate an incoming projectile.

## Claims

### Claim 1

An armor panel comprising:
a first projectile-deflecting section having an outwardly facing surface, the first projectile-deflecting section comprising:
a macroscopically orthotropic material comprising a laminate of parallel layers, the layers arranged at a non-parallel angle to the outwardly facing surface,
the macroscopically orthotropic material comprised of alternating layers of unidirectional ultra high molecular weight polyethylene fibers in a thermoplastic urethane resin pressed into a first laminate,
the alternating layers of unidirectional fibers of the first laminate alternating by 90° with respect to adjacent layers within the first laminate;
a further projectile-deflecting section disposed inwardly of the first projectile-deflecting section and comprising:
a further macroscopically orthotropic material comprising a laminate of parallel layers, the layers arranged at a further non-parallel angle to the outer surface that is less than the non-parallel angle of the first projectile-deflecting section,
the further macroscopically orthotropic material comprised of alternating layers of unidirectional ultra high molecular weight polyethylene fibers in a thermoplastic urethane resin pressed into a further laminate,
the alternating layers of the unidirectional fibers of the further laminate alternating by 90° with respect to adjacent layers within the further laminate;
the macroscopically orthotropic material of the first projectile-deflecting section and the further macroscopically orthotropic material of the further projectile-deflecting section comprising a same material; and
a ballistic layer attached to the further projectile-deflecting section parallel to the outwardly facing surface.

### Claim 2 (depends on 1)

The armor panel of claim 1, wherein the non-parallel angle of the layers of the first projectile-deflecting section to the outer surface is between 10° and 90°.

### Claim 3 (depends on 1)

The armor panel of claim 1, wherein the non-parallel angle of the layers of the further projectile-deflecting section to the outer surface is approximately 45°.

### Claim 4 (depends on 1)

The armor panel of claim 1, wherein each of the parallel layers is comprised of a unidirectional material stacked in an alternating orthogonal configuration.

### Claim 5 (depends on 1)

The armor panel of claim 1, wherein the further non-parallel angle comprises an alternating non-parallel angle to the outer surface from the non-parallel angle of the first projectile-deflecting section.

### Claim 6 (depends on 1)

An armor panel system comprising the armor panel of claim 1, wherein the armor panel of claim 1 is attached to a structure.