Apparatus for providing protection from ballistic rounds, projectiles, fragments and explosives

• US 8,074,553 B1
• Filed: 10/30/2007
• Issued: 12/13/2011
• Est. Priority Date: 12/08/2004
• Status: Active Grant

• Current Assignee: Armor Dynamics, Inc.
• Original Assignee: Armor Dynamics, Inc.
• Inventors: Warren, David H.
• Primary Examiner(s): JOHNSON, STEPHEN
• Application Number:
  US11/978,663
• Publication Number:
  US 20110290104A1
• Time in Patent Office: 1,505 Days
• Field of Search: 89/360.2, 89/360.8
• US Class Current: 89/36.02
• CPC Class Codes: F41H 5/0414 Layered armour containing ceramic material

Abstract

An apparatus for providing protection from ballistic rounds, projectiles, fragments and explosives. The apparatus includes a core, grinding layer and bonding layer. The core is shaped and configured as a structural truss of the apparatus, in which the core includes a plurality of parallel, adjacent rows and the core distributes and dissipates force impacting on the apparatus. The grinding layer is positioned on at least one side of the core facing towards potential threats, in which the grinding layer grinds rounds, projectiles, fragments or other materials impacting the apparatus, helping to dissipate the impacting material and its momentum. The bonding layer bonds the grinding layer together and the grinding layer to the core and provides an outer coating to the apparatus on a side of the apparatus facing potential threats and through which rounds, projectiles, fragments or other materials impact and penetrate the apparatus.

Claims

1. An apparatus for providing protection from ballistic rounds, projectiles, fragments and explosives, comprising:

a core that is shaped and configured as a structural truss of the apparatus, in which the core includes a plurality of parallel, adjacent rows and the core distributes and dissipates force impacting on the apparatus;

a grinding layer comprising a plurality of ceramic grinding media and positioned on at least one side of the core facing towards potential threats, in which the grinding layer grinds rounds, projectiles, fragments or other materials impacting the apparatus, helping to dissipate the impacting material and its momentum, wherein the rows of the core include tilted surfaces that orient the ceramic grinding media at an angle away from perpendicular to a side of the apparatus facing towards potential threats and position the ceramic grinding media tightly packed, side-by-side together, and lined up in parallel rows, so that the impacting material is redirected on impact, the chances that the impacting material will strike any ceramic grinding media head-on are decreased, and the chances that the impacting material will impact with multiple ceramic grinding media are increased; and

a bonding layer that bonds the ceramic grinding media together and to the core and provides an outer coating to the apparatus on a side of the apparatus facing potential threats and through which rounds, projectiles, fragments or other materials impact and penetrate the apparatus, wherein the bonding layer is substantially self-healing.

2. The apparatus of claim 1 wherein the ceramic grinding media are ceramic cylinders that are positioned side-by-side upright at an angle in adjacent rows of the core.

3. The apparatus of claim 1 wherein the ceramic grinding media are ceramic cubes.

4. The apparatus of claim 1 wherein the ceramic grinding media are ceramic hexagons, wherein two ceramic hexagons in one row are offset from two ceramic hexagons in an adjacent row, and wherein adjacent rows of ceramic hexagons are tilted with one row higher than the other.

5. The apparatus of claim 1 wherein the ceramic grinding media are hollow.

6. The apparatus of claim 5 wherein the core includes protrusions on which the hollow ceramic grinding media fit.

7. The apparatus of claim 1 wherein the bonding layer is a self-healing polymer.

8. The apparatus of claim 1 wherein core is plastic.

9. The apparatus of claim 1 further comprising a backing that is attached to the apparatus on a side facing away from potential threats, in which the backing acts to further absorb and dissipate force impacting on the apparatus.

10. The apparatus of claim 9, further comprising a wire mesh installed between the bonding layer on a back side of the core and the backing, wherein the wire mesh traps and contains fragments from the impacting material, reducing resulting injury.

11. The apparatus of claim 1 in which the bonding layer is located on both sides of the core and provides an outer coating to the apparatus on a side facing away from potential threats.

12. A vehicle component comprising one or more apparatus according to claim 1.

13. A building block comprising the apparatus according to claim 1.

14. The apparatus of claim 1, wherein each row acts as a node in the structural truss, with each ceramic grinding media placed in the core acting in conjunction with the row in which the ceramic grinding media is placed as a sub-cell or sub-node of the row.

15. An apparatus for providing protection from ballistic rounds, projectiles, fragments and explosives, comprising:

a grinding layer comprising a plurality of ceramic grinding media and facing towards potential threats, in which the grinding layer grinds rounds, projectiles, fragments or other materials impacting the apparatus, helping to dissipate the impacting material and its momentum;

a three-dimensional, structural truss core that distributes and dissipates force impacting on the apparatus, wherein the grinding layer is positioned on a least one side of the core on a side of the apparatus facing towards potential threats and the core includes a plurality of tilted surfaces that are configured to orient the ceramic grinding media at an angle way from perpendicular to a side of the apparatus facing towards potential threats and position the ceramic grinding media tightly packed, side-by-side together, and lined up in parallel rows, so that the impacting material is redirected on impact, the chances that the impacting material will strike any ceramic grinding media head-on are decreased, and the chances that the impacting material will impact with multiple ceramic grinding media are increased;

a bonding layer that bonds the ceramic grinding media together and the grinding layer to the core and provides an outer coating to the apparatus on a side of the apparatus facing potential threats and through which rounds, projectiles, fragments or other materials impact and penetrate the apparatus, wherein the bonding layer is substantially self-healing; and

a backing that is attached to the apparatus on side facing away from potential threats, in which the backing acts to further absorb and dissipate force impacting on the apparatus.

16. The apparatus of claim 15 in which the grinding layer comprises hollow ceramic cylinders.

17. The apparatus of claim 15 wherein the bonding layer is a self-healing, elastomeric polymer that encapsulates the grinding layer and the three-dimensional core.