US2004003445A1PendingUtilityA1

Ballistic resistant panel

39
Assignee: FIRST CHOICE ARMOR AND EQUIPMEPriority: Jan 5, 2002Filed: Dec 21, 2002Published: Jan 8, 2004
Est. expiryJan 5, 2022(expired)· nominal 20-yr term from priority
Inventors:Edward R. Dovner
F41H 5/0485
39
PatentIndex Score
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Cited by
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References
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Claims

Abstract

A ballistic resistant panel for use in protective garments. The ballistic resistant panel comprises at least two layers of multiple plies of a woven fibrous material wherein the plies of each layer are loosely stitched together within the respective layer and the layers are fastened together at the periphery of the panel. The loose construction yields a panel that is light-weight and more economic to manufacture.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A ballistic resistant panel comprising at least two layers, the layers having multiple plies of a woven fibrous material, the multiple plies of each layer being loosely stitched together within the respective layer, the layers being fastened together at the periphery of the panel.  
     
     
         2 . The ballistic resistant panel of  claim 1  wherein the panel has three layers, the plies of the first and third layers being loosely stitched together in a square pattern, the second layer being disposed between the first and third layers, and the plies of the second layer being loosely stitched together in a crossed-diagonal pattern.  
     
     
         3 . The ballistic resistant panel of  claim 2  wherein each layer has four plies of woven lyotropic liquid crystal polymer fibers.  
     
     
         4 . The ballistic resistant panel of  claim 2  wherein the first and third layers are comprised of three plies of woven lyotropic liquid crystal polymer fibers and the second layer is comprised of four plies of woven lyotropic liquid crystal polymer fibers.  
     
     
         5 . The ballistic resistant panel of  claim 1  wherein the panel has two layers, the plies of the first layer being loosely stitched together in a square pattern, and the plies of the second layer being loosely stitched together in a crossed-diagonal pattern.  
     
     
         6 . The ballistic resistant panel of  claim 5  wherein each layer is comprised of four plies of woven lyotropic liquid crystal polymer fibers.  
     
     
         7 . The ballistic resistant panel of,  claim 3  wherein the loose stitching is a one-inch diamond stitch at 3½ stitches per inch.  
     
     
         8 . The ballistic resistant panel of  claim 3  wherein the plies of the first and third layers have a warp to fill ratio of 11 by 28 fibers per inch and the plies of the second layer have a warp to fill ratio of 30 by 30 fibers per inch.  
     
     
         9 . The ballistic resistant panel of  claim 3  wherein the panel has an areal density of not more than about 0.84 pounds per square foot.  
     
     
         10 . The ballistic resistant panel of  claim 9  wherein the panel has a thickness of about 0.15 inches.  
     
     
         11 . The ballistic resistant panel of  claim 4  wherein the loose stitching is a one-inch diamond stitch at 3½ stitches per inch.  
     
     
         12 . The ballistic resistant panel of  claim 4  wherein the plies of the first and third layers have a warp to fill ratio of 11 by 28 fibers per inch and the plies of the second layer have a warp to fill ratio of 30 by 30 fibers per inch.  
     
     
         13 . The ballistic resistant panel of  claim 4  wherein the panel has an areal density of not more than about 0.66 pounds per square foot.  
     
     
         14 . The ballistic resistant panel of  claim 13  wherein the panel has a thickness of about 0.13 inches.  
     
     
         15 . The ballistic resistant panel of  claim 6  wherein the loose stitching is a one-inch diamond stitch at 3½ stitches per inch.  
     
     
         16 . The ballistic resistant panel of  claim 6  wherein the plies of the first layer have a warp to fill ratio of 11 by 28 fibers per inch and the plies of the second layer have a warp to fill ratio of 30 by 30 fibers per inch.  
     
     
         17 . The ballistic resistant panel of  claim 6  wherein the panel has an areal density of not more than about 0.51 pounds per square foot.  
     
     
         18 . The ballistic resistant panel of  claim 17  wherein the panel has a thickness of about 0.10 inches.  
     
     
         19 . The ballistic resistant panel of  claim 1  wherein the panel has an areal density of not more than about 0.84 pounds per square foot and meets NIJ Standard-0101.04 for Type IIIA ballistic threats.  
     
     
         20 . The ballistic resistant panel of  claim 1  wherein the panel has an areal density of not more than about 0.66 pounds per square foot and meets NIJ Standard-0101.04 for Type II ballistic threats.  
     
     
         21 . The ballistic resistant panel of  claim 1  wherein the panel has an areal density of not more than about 0.51 pounds per square foot and meets NIJ Standard-0101.04 for Type IIA ballistic threats.  
     
     
         22 . The ballistic resistant panel of  claim 19  wherein the panel has a thickness of about 0.15 inches.  
     
     
         23 . The ballistic resistant panel of  claim 20  wherein the panel has a thickness of about 0.13 inches.  
     
     
         24 . The ballistic resistant panel of  claim 21  wherein the panel has a thickness of about 0.10 inches.

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