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US 7,114,186 B2Granted
Ballistic vest
AssigneeDsm IP Assets B.V.
InventorsPeter H. W. Steeghs, Marc Blaauw, Wilhelmus A. R. M. Pessers, Jan L. Lindemulder
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AssigneeDsm IP Assets B.V.
InventorsPeter H. W. Steeghs, Marc Blaauw, Wilhelmus A. R. M. Pessers, Jan L. Lindemulder
Estimating the term…
The invention relates to a ballistic vest containing a stock of flexible fabrics and a stack of flexible unidirectional layers, in which the fabrics contain strong fibres of a first kind, the unidirectional layers contain strong fibres of a second kind, and in which the fibres in a unidirectional layer run essentially parallel and are disposed at an angle to fibres in an adjacent layer which is greater than 0 degrees, where in that the flexible fabric is a loose fabric and is located on the strike side of the vest. The percentages by weight of the loose fabrics and the stack of UD layers preferably is between 15:85 and 30:70%. In that case, a vest of areal density less than 6 kg/m2 can have such ballistic resistance as to stop an Action 3 bullet with a velocity of up to 437 m/s with a trauma to NIJ Standard of less than 44 mm.
Ballistic vest containing a stack of flexible fabrics and a stack of flexible unidirectional layers, in which the fabrics contain strong fibres of a first kind, the unidirectional layers contain strong fibres of a second kind, and in which the fibres in a unidirectional layer run essentially parallel and are disposed at an anale to fibres in an adjacent layer which is greater than 0 degrees and wherein the flexible fabric is a loose fabric and is located on a strike side of the vest, in which the loose fabric contains at least 3 floats.
Ballistic vest containing a stack of flexible fabrics and a stack of flexible unidirectional layers, in which the fabrics contain strong fibres of a first kind, the unidirectional layers contain strong fibres of a second kind, and in which the fibres in a unidirectional layer run essentially parallel and are disposed at an angle to fibres in an adjacent layer which is greater than 0 degrees and wherein the flexible fabric is a loose fabric and is located on a strike side of the vest, in which the first and second stacks together have an areal density of less than 6 kg/m2 and in which the vest has such ballistic resistance as to stop an Action 3 bullet with a velocity of up to 437 m/s with a trauma to NIJ Standard of less than 44 mm.
Ballistic vest containing a stack of flexible fabrics and a stack of flexible unidirectional layers, in which the fabrics contain strong fibres of a first kind, the unidirectional layers contain strong fibres of a second kind, and in which the fibres in a unidirectional layer run essentially parallel and are disposed at an angle to fibres in an adjacent layer which is greater than 0 degrees and wherein the flexible fabric is a loose fabric and is located on a strike side of the vest, in which the first and second stack together have an areal density of less than 4.5 kg/m2 and in which the vest has such ballistic resistance as to stop an Action 3 bullet with a velocity of up to 385 m/s with a trauma to NIJ Standard of less than 44 mm.
Dependencies are inferred from the claim text.