Methods and apparatus for providing ballistic protection

• US 7,628,104 B2
• Filed: 11/01/2007
• Issued: 12/08/2009
• Est. Priority Date: 12/08/2004
• Status: Expired due to Fees

• Current Assignee: Armor Dynamics, Inc.
• Original Assignee: Armor Dynamics, Inc.
• Inventors: Warren, David H., Schaeffer, Wayne
• Primary Examiner(s): JOHNSON, STEPHEN
• Application Number:
  US11/979,309
• Publication Number:
  US 20080141852A1
• Time in Patent Office: 768 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
• CPC Class Codes: F41H 5/0428 Ceramic layers in combination with additional layers made of fibres, fabrics or plastics

Abstract

Methods and apparatus for providing ballistic protection and stopping high-velocity rounds or explosives. A ballistic panel for providing protection includes a three-dimensional core designed as a structural truss that includes a plurality of nodes and provides structural support of the ballistic panel, a ceramic grinding layer that includes a plurality of ceramic grinding media that fills in the nodes of the core, an elastomeric, self-healing outer coating that encapsulates the ceramic grinding layer and a backing affixed to a non-threat side of the ballistic panel. The core absorbs and dissipates force from projectile and explosive force impacts on the ballistic panel and the ceramic grinding layer re-directs and causes the projectiles to break apart.

Claims

1. A ballistic panel for providing protection comprising:

a three-dimensional core designed as a structural truss that provides structural support of the ballistic panel, wherein the core has two sides and includes opposing protrusions, wherein the protrusions on each side are arranged in a configuration such that each individual protrusion, except for protrusions in end rows, is surrounded by other protrusions, and wherein the core absorbs and dissipates force from projectile and explosive force impacts on the ballistic panel;

a ceramic grinding layer comprising a plurality of substantially solid ceramic grinding media that fills in the protrusions of the core, wherein the ceramic grinding layer re-directs and causes the projectiles to break apart;

an elastomeric, self-healing outer coating that encapsulates the ceramic grinding layer, containing the ceramic grinding layer and fragments from projectiles; and

a backing affixed to a non-threat side of the ballistic panel.

2. The ballistic panel of claim 1 wherein the substantially solid ceramic grinding media are substantially solid ceramic spheres or cylinders.

3. The ballistic panel of claim 1 wherein the elastomeric, self-healing outer coating is a polyurethane.

4. A ballistic panel for providing protection comprising:

a flexible three-dimensional core that includes a plurality of tightly-packed node cells and protrusions that provide structural strength, dissipate force from impacting projectiles, contain the effects of impacting projectiles, and enable the ballistic panel to be bent and formed in curved shapes, wherein the node cells and protrusions on each side are arranged in a configuration such that each individual node cell, except for node cells in end rows, is surrounded by protrusions, and each individual protrusion, except for protrusions in end rows, is surrounded by node cells;

a ceramic grinding layer comprising a plurality of substantially solid ceramic grinding media that fills in the nodes of the core, wherein the ceramic grinding layer re-directs and causes the projectiles to break apart; and

a self-healing, elastic outer coating that encloses the ceramic grinding layer and core.