초록 ▼

A ballistics vest of the soft body armor type comprises multiple overlying layers of a thin, flexible fabric made of woven plastic fibers secured together to form a soft, flexible front panel located on a strike side of the vest, and multiple overlying layers of a thin, flexible imperforate plastic

A ballistics vest of the soft body armor type comprises multiple overlying layers of a thin, flexible fabric made of woven plastic fibers secured together to form a soft, flexible front panel located on a strike side of the vest, and multiple overlying layers of a thin, flexible imperforate plastic sheet stacked behind the flexible front panel, on a body side of the vest. The flexible plastic sheets preferably comprise an array of plastic fibers embedded in a resinous matrix that forms the sheet material. The flexible front panel and the stack of flexible plastic sheets behind it have a combined areal weight not greater than about 1.20 lbs/ft2 and have an NIJ Standard maximum backface of about 44 mm with a ballistics resistance that successfully prevents projectile penetration of the combined stacks of flexible layers according to NIJ Standard 0101.03 for Threat Level IIIA. The flexible fabric layers in the front panel are preferably quilted in a one-inch quilt pattern, and the fibers contained in the front panel and the rear panel are preferably extended chain polyethylene fibers. In one embodiment, the vest contains 20 layers of the woven fabric and 23 layers of the flexible plastic sheet material, with the areal density of the sheet material being 4.5 oz/yd2 and the fibers in both front and rear panels having a fiber tenacity of at least about 35 gm/denier. Other embodiments comprise extremely lightweight ballistic vests including one meeting Threat Level II specifications and having an areal weight of less than one pound per square foot (psf); another vest meets Threat Level IIA specifications with an areal weight below 0.9 psf.

대표청구항 ▼

A ballistic vest of the soft body armor type comprising: a composite protective panel having ballistic resistance and consisting essentially of a first flexible panel and a second flexible panel, the composite panel having a strike side and a body side, the first flexible panel comprising a first gr

A ballistic vest of the soft body armor type comprising: a composite protective panel having ballistic resistance and consisting essentially of a first flexible panel and a second flexible panel, the composite panel having a strike side and a body side, the first flexible panel comprising a first group of flexible woven fabric layers arranged in a stack in face-to-face surface contact on the strike side of the composite panel, each first woven fabric layer comprising an array of woven plastic fibers, the individual first woven fabric layers being secured to each other to form a flexible unitary panel, the second flexible panel comprising a second group of flexible imperforate plastic sheets arranged in a stack in face-to-face surface contact on the body side of the composite panel, each second flexible imperforate plastic sheet comprising an array of plastic fibers embedded in a resinous matrix-type film, in which the plastic fibers in the first woven fabric layers and the second imperforate plastic sheets comprise extended chain polyethylene fibers having a fiber tenacity of at least about 30 gm/denier, the ballistic resistance of the composite panel being provided essentially in its entirety from the strike side of the composite panel through the first flexible panel directly through the second flexible panel to the body side of the composite panel, the first and second flexible panels having a combined areal weight not greater than about 1.20 lbs/ft2 and having an NIJ Standard maximum backface of about 44 mm (.44 Magnum), with a ballistic resistance that prevents projectile penetration of the combined first and second flexible panels according to NIJ Standard 101.03 for Threat Level IIIA.