Self-dispensing bullet trap buffer block
First Claim
1. An additive for stabilizing and passivating a projectile trapping medium and spent projectiles trapped therein, said additive comprising a buffering compound formed as a low density, self-dispensing, foamed concrete block, said low density, self-dispensing, foamed concrete block comprising:
- one or more dry components selected from the group consisting of low solubility phosphate compounds, low solubility aluminum compounds, iron compounds, sulfate compounds, and calcium carbonate;
a cementing material;
water; and
a quantity of aqueous based foam sufficient to yield a density of said block sufficiently high to prevent said block from being buoyant and sufficiently low to prevent said block from sinking in the projectile trapping medium;
wherein said one or more dry components, said cementing material, and said water are provided in substantially stoichiometric amounts according to a formula comprising;
about 1 part by mass low solubility phosphate compound;
about 1 part by mass cementing material; and
about 0.4 parts by mass water.
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Accused Products
Abstract
An additive for buffering a projectile trapping medium and spent projectiles trapped therein is a buffering compound formed as a low density foamed concrete block that will self-dispense via fragmentation or pulverization when subjected to incoming fire. The block combines at least one dry component selected from the group consisting of low solubility phosphate compounds, low solubility aluminum compounds, iron compounds, sulfate compounds, and calcium carbonate with a cementing material, water, and an aqueous based foam in substantially stoichiometric amounts. The aqueous based foam is added in a quantity sufficient to adjust the density of the resulting block to be non-buoyant without sinking in the projectile trapping medium. The additive may be employed in a projectile trapping medium to chemically stabilize the medium and environmentally stabilize projectiles trapped therein.
34 Citations
9 Claims
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1. An additive for stabilizing and passivating a projectile trapping medium and spent projectiles trapped therein, said additive comprising a buffering compound formed as a low density, self-dispensing, foamed concrete block, said low density, self-dispensing, foamed concrete block comprising:
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one or more dry components selected from the group consisting of low solubility phosphate compounds, low solubility aluminum compounds, iron compounds, sulfate compounds, and calcium carbonate; a cementing material; water; and a quantity of aqueous based foam sufficient to yield a density of said block sufficiently high to prevent said block from being buoyant and sufficiently low to prevent said block from sinking in the projectile trapping medium; wherein said one or more dry components, said cementing material, and said water are provided in substantially stoichiometric amounts according to a formula comprising; about 1 part by mass low solubility phosphate compound; about 1 part by mass cementing material; and about 0.4 parts by mass water. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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Specification
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- Resources
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Current AssigneeU.S. Government
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Original AssigneeThe United States Of America As Represented By The Secretary Of The Army
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InventorsMalone, Philip G., Larson, Steven L., Weiss, Charles A. Jr., Fransen, Edward J., Tom, Joe G.
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Primary Examiner(s)Graham, Mark S.
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Application NumberUS10/911,771Publication NumberTime in Patent Office783 DaysField of Search273404-410, 106/674, 428/76, 428/312, 428/4, 264/42, 451/359US Class Current273/410CPC Class CodesF41J 11/02 Safety means thereforF41J 13/00 Bullet catchers
