IP Library › Granted Patent US 6,862,971
Granted Patent B2
US 6,862,971 · App. 10/322,380 · Granted Mar 8, 2005

Ballistic protection composite shield and method of manufacturing

Assignee: Texas Tech University
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Quick Facts
Patent No.
US 6,862,971
App. No.
10/322,380
Granted
Mar 8, 2005
Kind
B2
Abstract

A ballistic protection composite shield is disclosed, with improved next-to-skin properties, and improved flexibility. Needlepunching technology permits the manufacture of the wear layer using any type of fiber, and advantageously allows distinct layering, fiber blending, compressibility, controlled fiber orientation, and increases z-directional strength. Needlepunching the nonwoven wear layer to the woven antiballistic layer mechanically interconnects the two layers, eliminating the need for an adhesive bond and increasing the flexibility of the shield. An abrasion resistant strike layer, such as leather, increases the life of the shield.

Claims (10)

1. A method for manufacturing an antiballistic composite shield that has improved flexibility and next-to-skin comfort properties while still providing ballistic protection to its wearer, the method comprising the steps of:

manufacturing a nonwoven wear layer by needle punching fibers, including apparel-grade fibers, in order to produce the wear layer having significant next-to-skin properties for the comfort of the wearer;

needle punching a first woven antiballistic layer to the wear layer in order to mechanically interconnect the layers;

bonding a plurality of woven antiballistic layers to the first antiballistic layer after needle punching the first woven antiballistic layer to the wear layer, and

bonding an abrasion-resistant layer to at least one of the plurality of antiballistic layers.

2. The method of claim 1 , further comprising the step of stitching the antiballistic composite shield.

3. The method of claim 1 , wherein the step of bonding an abrasion-resistant layer to at least one of the plurality of antiballistic layers comprises the step of:

adhesively bonding an abrasion-resistant layer to at least one of the plurality of antiballistic layers.

4. The method of claim 1 , wherein the step of bonding the abrasion-resistant layer to at least one of the plurality of antiballistic layers comprises the step of:

bonding a leather layer to at least one of the plurality of antiballistic layers.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 25, 2003
From: RAMKUMAR, SESHADRI S.
To: TEXAS TECH UNIVERSITY SYSTEM
Reel/Frame 013878/0927 →
Continuity (1)
Related Publication 20040112206A1 · Jun 17, 2004