The present disclosure relates to a protective enclosure to secure occupants against external threats, such as ballistic projectiles, blasts, or natural phenomena.

The present disclosure relates to a protective enclosure to secure occupants against external threats, such as ballistic projectiles, blasts, or natural phenomena.

A protective structure is provided that is configured to crush descending items into particles. The protective structure comprises an upper mesh layer made of hard material capable of crushing the descending items and a bottom layer made of combined hard material and relatively soft material, wherein the bottom layer is capable of absorbing the particles. The protective structure is further provided with a plurality of supporting poles that are positioned between the upper mesh layer and the bottom layer.

A protective structure is provided that is configured to crush descending items into particles. The protective structure comprises an upper mesh layer made of hard material capable of crushing the descending items and a bottom layer made of combined hard material and relatively soft material, wherein the bottom layer is capable of absorbing the particles. The protective structure is further provided with a plurality of supporting poles that are positioned between the upper mesh layer and the bottom layer.

A multi-threat security apparatus system for critical infrastructure protection is disclosed having an above-ground concrete base, a vertical post system adapted to be attached to the above-ground concrete base and to receive a plurality of louvers. The plurality of louvers provides the necessary ballistic protection for and air flow through to the critical infrastructure. The louvers may include a composite of aluminum foam, a resin impregnated ballistic material and an aluminum foam. The composite structure may be used on doors, panels or building walls.

A multi-threat security apparatus system for critical infrastructure protection is disclosed having an above-ground concrete base, a vertical post system adapted to be attached to the above-ground concrete base and to receive a plurality of louvers. The plurality of louvers provides the necessary ballistic protection for and air flow through to the critical infrastructure. The louvers may include a composite of aluminum foam, a resin impregnated ballistic material and an aluminum foam. The composite structure may be used on doors, panels or building walls.

A progressive stage load distributing and absorbing system that lies below a superstructure material which is exposed to percussive forces. The progressive stage load distributing and absorbing system is interposed between the superstructure material and a foundation. The system has a barrier layer that lies below the superstructure material and an underlayment infrastructure positioned below the barrier layer. Included in the underlayment infrastructure are hat-shaped absorbing members that have a relatively compliant stage subsystem and one or more relatively stiff stage subsystems.

A progressive stage load distributing and absorbing system that lies below a superstructure material which is exposed to percussive forces. The progressive stage load distributing and absorbing system is interposed between the superstructure material and a foundation. The system has a barrier layer that lies below the superstructure material and an underlayment infrastructure positioned below the barrier layer. Included in the underlayment infrastructure are hat-shaped absorbing members that have a relatively compliant stage subsystem and one or more relatively stiff stage subsystems.

A wall for a building that includes a framed wall structure including a top support, a bottom support, and opposing side supports connected together, and at least one intermediate support attached to the top support and the bottom support, and a blast panel made of a cementitious material attached to the framed wall structure.

A wall for a building that includes a framed wall structure including a top support, a bottom support, and opposing side supports connected together, and at least one intermediate support attached to the top support and the bottom support, and a blast panel made of a cementitious material attached to the framed wall structure.