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Ballistic resistant pad with metal cordRelated Patent Categories: Apparel, Guard Or Protector, Penetration ResistantBallistic resistant pad with metal cord description/claimsThe Patent Description & Claims data below is from USPTO Patent Application 20070136920, Ballistic resistant pad with metal cord. Brief Patent Description - Full Patent Description - Patent Application Claims
FIELD OF THE INVENTION [0001] The present invention relates to a ballistic resistant pad for use in protective textile or the like. BACKGROUND OF THE INVENTION [0002] With increasing violence in the form of terrorism, protective textiles are becoming more and more important. Protective clothing, which combines both a sufficient resistance against impacts caused by bullets and an acceptable level of comfort for the wearer, are nowadays on the market. [0003] The required degree of impact resistance is achieved due to the relatively great plastic deformations of high-strength fibers. At the spot of the bullet burst a small crater is created in the sheet formed by the high-strength fibers. Locally the material of the high-strength fibers is contracted and shrinks. The result is that after the bullet impact, the sheet occupies a decreased surface area and, as a consequence, protects a decreased surface area. A number of consecutive bullets may result in a substantial surface area becoming unprotected by the sheet. SUMMARY OF THE INVENTION [0004] It is an object of the present invention to avoid the drawbacks of the prior art. [0005] It is another object of the present invention to increase the degree of security of protective clothing. [0006] It is still another object of the present invention to give adequate protection even after one or more bullet impacts. [0007] According to the present invention, there is provided a ballistic resistant pad for use in protective textile or the like, e.g. in protective clothing. The pad comprises one or more sheets of high-strength fibers and a plurality of elongated metal elements. The elongated metal elements are attached to at least one of the sheets in a way to give to the pad a degree of resiliency to come back close to its original form after a local impact. [0008] The elongated metal elements may be metal wires or metal cords. Preference is given to metal cords, because of their flexibility and resulting increased comfort for the user in comparison with metal wires of the same cross-section. The metal cords are preferably steel cords. [0009] In order to be effective the metal elements are spread over the surface of the sheet of high-strength fibers. [0010] The elongated metal elements may be present in the ballistic resistant pad in the form of individual elongated metal elements or, preferably, may be present in the form of a fabric of woven or knitted elongated metal elements. [0011] In order to provide the ballistic resistant pad with sufficient resiliency and integrity upon bullet impact, the elongated metal elements are preferably attached to all present sheets of high-strength fibers. [0012] The attachment of the elongated metal elements to the sheets of high-strength fibers may be done by means of an adhesive or by means of a thermoplastic film. Preferably, however, the elongated metal elements are stitched to the sheets of high-strength fibers. BRIEF DESCRIPTION OF THE DRAWINGS [0013] The invention will now be described into more detail with reference to the accompanying drawings wherein [0014] FIG. 1 illustrates the functioning of a prior art embodiment; [0015] FIG. 2 and FIG. 3 illustrate each an embodiment according to the invention with individual steel cords; [0016] FIG. 4 and FIG. 5 show each an embodiment according to the invention with steel cord fabrics. DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION [0017] FIG. 1 illustrates the phenomenon of a bullet impact occurring on a prior art ballistic resistant pad 10. The ballistic resistant pad 10 comprises one or more sheets 12 of synthetic high-strength fibers. A bullet creates a small crater 14. In the neighborhood of this crater the sheet material is shrinked and contracted to a degree that the sheet now has as borders 16 whereas the original borders 18--shown in dashed lines--covered a substantially larger area. Other subsequent bullet impacts on other locations will also create craters, which will result in a further decrease of the protected surface. [0018] FIG. 2 shows a first embodiment of the invention. The ballistic resistant pad 20 comprises one or more sheets 22 of high-strength fibers. Useful high-strength fibers for the sheets of a ballistic-resistant pad are aramid fibers, para-aramid fibers, high-density high-molecular weight polyethylene fibers, poly(p-phenylene-2,6-benzobisoxazole) fibers (PBO fibers), polybenzimidazole fibers (PBI fibers) or any combination or mixture hereof. [0019] Individual lengths of steel cords 24 are attached by means of stitches to the sheets 22. The steel cord lengths 24 form a particular pattern on the sheets 22 so that a large area is covered. Preferably, triangular structures are formed because of their inherent stability. Although flexible from a comfort point of view, the steel cords 24 are stiffer in compression than the high-strength synthetic fibers and give a resiliency to the sheet 22 so that this sheet 22 is able to restrain deformation in the plane and recover from a bullet impact and can come back close to its original form after a bullet impact. Continue reading about Ballistic resistant pad with metal cord... Full patent description for Ballistic resistant pad with metal cord Brief Patent Description - Full Patent Description - Patent Application Claims Click on the above for other options relating to this Ballistic resistant pad with metal cord patent application. ###  How KEYWORD MONITOR works... a FREE service from FreshPatents1. Sign up (takes 30 seconds). 2. Fill in the keywords to be monitored. 3. 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