US Government as Represented by the Secretary of the Army

Brad Leslie Huntsman

Philip Garcin Malone

Brent Elliot Huntsman

Charles Arthur Weiss, Jr

Joe Gain Tom

Provided are structural material for bullet traps and the like, a method of producing it, and a structure comprising it. The material is suitable for entraining and immobilizing projectiles and fine particles in a sticky gel. It is prepared by mixing cement with a thickener to form a dry mixture. Water is mixed with a fine aggregate in a mixer. The dry mixture is combined with the aqueous mixture in the mixer to form a slurry. Calcium phosphate and an alumina compound are added, mixing each separately until homogeneous. The density of the mixture is measured and an aqueous foam is added to adjust the density to a pre-specified level. Fibers are mixed into the adjusted mixture to form a homogeneous slurry that may be poured into a mold or in place at a construction site. Upon curing, the material may be used as a structural component.

Material, and method of producing it, for immobilizing heavy metals later entrained therein

In a shooting range for training personnel in the use of firearms, a bullet trap that prevents rebounding bullets or flying debris from injuring shooters, has a central section of stacked cylindrical logs, or logs having a trapezoidal cross section, supported by stacked rectangular supporting blocks on each side. The stacked cylindrical logs have conical end sections at the end facing the shooter. These conical end sections direct incoming bullets to passageways between the cylindrical logs. Bullets passing through these passageways then strike a backstop panel. In a preferred embodiment, both the cylindrical logs and the backstop panel are made of shock-absorbing foamed fiber-reinforced concrete.

Durable system for controlling the disposition of expended munitions fired at a target positioned close to the shooter

Filter elements for draining wastewater into the soil in leach fields comprise net sacks filled with scrap rubber or plastic chips and supplied with fabric filter cloth. Leach fields are constructed by excavating trenches, placing a first row of filter elements at the bottom of the trenches, installing a drain pipe on top of the row of filter elements, placing a second row of filter elements on top of the first row and the drain pipe, overlapping the pieces of filter cloth to provide a barrier to the surrounding soil, and backfilling the trench with soil.

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Dayton, OH, United States of America

Brad Leslie Huntsman