US2013160638A1PendingUtilityA1

Energy-Dissipating Articles, Materials and Fibers

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Individually held — no corporate assignee on recordPriority: Sep 15, 2011Filed: Aug 29, 2012Published: Jun 27, 2013
Est. expirySep 15, 2031(~5.1 yrs left)· nominal 20-yr term from priority
Inventors:Gerrad Stephen Allison
Y10T428/249921F41H 5/0485Y10T442/3065Y10T442/641D01D 5/36D01F 8/04Y10T428/2929D01D 5/34F41H 5/007
36
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Claims

Abstract

A fiber includes at least a first portion extending axially and including a shear thickening fluid. The fiber further includes at least a second portion extending radially outwardly from the first portion. The second portion extends axially and radially encompasses the first portion over a length thereof. The shear thickening fluid may, for example, include particles suspended in a liquid phase. The second portion may, for example, include an abrasion resistant material. The fiber may further include at least a third portion extending axially and positioned radially inward of the first portion. The third portion may, for example, include a material having a higher strength than the second portion.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . A fiber comprising:
 at least a first portionextending axially and comprising a shear thickening fluid, and   at least a second portion extending radially outwardly from the first portion, the second portion extending axially and radially encompassing the first portion.   
     
     
         2 . The fiber of  claim 1 , wherein the shear thickening fluid comprises:
 particles suspended in a liquid phase.   
     
     
         3 . The fiber of  claim 2 , wherein the particles comprise:
 at least one of an oxide, calcium carbonate or a polymer.   
     
     
         4 . The fiber of  claim 3 , wherein the oxide is Si0 2 . 
     
     
         5 . The fiber of  claim 3 , wherein the polymer is a polystyrene, a polymethylmethacrylate, or a polyisobutene. 
     
     
         6 . The fiber of  claim 1 , wherein the second portion comprises:
 at least one polymer.   
     
     
         7 . The fiber of  claim 6 , wherein the polymer of the second portion is a nylon, a polyester, a polypropylene, or a polyethylene. 
     
     
         8 . The fiber of  claim 6 , wherein the polymer of the second portion is processible from a melt phase. 
     
     
         9 . The fiber of  claim 1 , wherein the second portion comprises an abrasion resistant material. 
     
     
         10 . The fiber of  claim 9 , wherein the abrasion resistant material is an abrasion resistant polymer. 
     
     
         11 . The fiber of  claim 10 , further comprising:
 at least a third portion extending axially and positioned radially inwardly of the first portion, the third portion including a material having a higher strength than the second portion.   
     
     
         12 . The fiber of  claim 11 , wherein, the third portion comprises:
 at least one of a high-strength polymeric material or a metallic material.   
     
     
         13 . The fiber of  claim 1 , further comprising:
 a flexible subassembly including,   an outer multi-ply strike-face layer, and   a middle multi-play layer,   wherein an outwardly-facing surface of the middle multi-play layer is disposed adjacent the outer multi-ply strike-face layer, wherein an inwardly-facing surface of the middle multi-play layer is disposed adjacent a fabric layer, wherein the fabric layer includes the fiber.   
     
     
         14 . The fiber of  claim 13 , further comprising:
 a ballistic panel assembly, wherein the ballistic panel assembly includes the flexible subassembly.   
     
     
         15 . A fabric layer, comprising:
 a plurality of fibers,   wherein each of the plurality of fibers includes,   at least a first portion extending axially and comprising a shear thickening fluid, and   at least a second portion extends radially outwardly from the first portion, the second portion extending axially and radially encompassing the first portion.   
     
     
         16 . The fabric layer of  claim 15 , wherein the plurality of fibers are woven. 
     
     
         17 . The fabric layer of  claim 15 , wherein the plurality of fibers are nonwoven. 
     
     
         18 . The fabric layer of  claim 15 , wherein the plurality of fibers are arranged in a unidirectional manner or in a random manner. 
     
     
         19 . The fabric layer of  claim 15 , wherein the fabric layer is an inner layer of a flexible subassembly, wherein the flexible subassembly comprises:
 an outer multi-ply strike-face layer including a first aramid fabric,   a middle multi-play layer including a second aramid fabric, wherein an outwardly-facing surface of the middle multi-play layer is disposed adjacent the outer multi-ply strike-face layer, wherein an inwardly-facing surface of the middle multi-play layer is disposed adjacent the fabric layer.   
     
     
         20 . The fabric layer of  claim 19 , further comprising:
 a ballistic panel assembly, wherein the ballistic panel assembly includes the flexible subassembly.   
     
     
         21 . The fabric layer of  claim 15 , wherein each of the plurality of fibers further comprises:
 at least a third portion extending axially and positioned radially inwardly of the first portion, the third portion including a material having a higher strength than the second portion.   
     
     
         22 . A ballistic panel assembly, comprising:
 at least one layer of a material including a plurality of fibers, each of the plurality of fibers including at least a first portion extending axially and comprising a shear thickening fluid, and at least a second portion extending radially outwardly from the first portion, the second portion extending axially and radially encompassing the first portion.   
     
     
         23 . The ballistic panel assembly of  claim 22 , wherein the at least one layer of the material including the plurality of fibers are formed into a fabric. 
     
     
         24 . The ballistic panel assembly of  claim 23 , wherein the plurality of fibers forming the fabric are woven. 
     
     
         25 . The ballistic panel assembly of  claim 23 , wherein the plurality of fibers forming the fabric are nonwoven. 
     
     
         26 . The ballistic panel assembly of  claim 23 , wherein the plurality of fibers forming the fabric are arranged in a unidirectional or random maner. 
     
     
         27 . The ballistic panel assembly of  claim 22 , wherein each of the plurality of fibers further comprises:
 at least a third portion extending axially and positioned radially inwardly of the first portion, the third portion including a material having a higher strength than the second portion.

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