Abstract: A systematic decontamination and containment method for decontaminating personnel is disclosed. This method includes providing a plurality of components positionable on a selected location for establishment of a multi-station decontamination and containment facility to decontaminate personnel and to contain contaminants collected during the decontamination process. The components can include a plurality of collapsible frame and roof assemblies, wall and roof covers, a weapons clearing assembly, a weapons storage locker, a hanging bar, a signage assembly, collapsible containment hamper assemblies, a covered dispensing assembly, a shuffle box, a multi-wipe dispensing assembly, and a transportable containment enclosure. The enclosure is shaped and sized to removably retain the system's components for transportation or the like.

Abstract: A ventilation system providing NBC protection for at least one closed security space and/or protection space with constant slight excess pressure, the ventilation system substantially having an air inlet and air outlet, an explosion protection valve, a prefilter, a filter for suspended matter, an activated carbon filter and an air conveying device for sucking in the air to be purified and for distributing the purified air, and wherein the ventilation system has at least one of the three following built-in elements: an explosion protection valve which is combined with and cooperates with the prefilter; a combined activated carbon filter made of activated carbon which is specifically effective against biological and/or chemical toxic substances, on the one hand and, on the other hand, against radionuclides; and an air pump configured as a double bellows.

Abstract: The invention provides an NBC protection and decontamination system, having a space delimited by an enclosure, the enclosure having a clean air inlet port and an air outlet, a decontamination unit attachable to the outside of the enclosure, the decontamination unit having a plenum and a chamber separated from the plenum by an air flow laminator. The system also includes at least one air inlet valve communicating with the air outlet of the enclosure and leading to the plenum and to at least one air exhaust valve made in the chamber, spaced apart from the air inlet valve. An opening is provided for controlled passage between the enclosure and the decontamination unit, and also an opening in the decontamination unit, for controlling the passage between the unit and the outside. There is also provided an NBC protection and contamination method.

Abstract: The present invention discloses a ventilation system for an underground structure which can internally supply fresh outdoor air by individually sucking and discharging air through fans of underground shafts in the underground structure such as an underground parking lot, underground warehouse, subway space, underground sporting place and underground hangar. The ventilation system for the underground structure includes air supply side fixed frames installed in air supply holes of each floor of the underground structure along one side shaft of the underground structure, air supply fans installed on the air supply side fixed frames toward the air supply holes, air exhaust rooms for forming air exhaust spaces on each floor of the underground structure, air exhaust holes being formed therein toward the other side shaft of the underground structure, air exhaust side fixed frames installed in the air exhaust rooms, and air exhaust fans installed on the air exhaust side fixed frames toward the air exhaust holes.

Abstract: The present invention provides an air supply device for fire accident, comprising an air supply pipe covered by a protective insulating layer buried at the bottom of a cement wall in the building, and such pipe tube having an air valve and an indicating sign at appropriate interval along the pipe for the survivors to obtain oxygen by hooking up the pipe.

Abstract: A room in a building serving as a safe haven for human inhabitants against harmful agent attack such as chemical or biological weapon attack. The room provides an environment sealed from air-carried harmful agents wherein the sealing can be accomplished by blocking air ducts and air leakage around doors. The room can be specially built, retrofitted, or rapidly adapted to serve as a safe haven. The room can include an oxygen source such as an oxygen generator. One oxygen generator utilizes a chemical process to generate gaseous oxygen. The room preferably includes a carbon dioxide scrubber. The invention includes kits and methods for rapidly converting a room to a safe haven.

Abstract: A building protection system and method is provided which is responsive to the release of hazardous agents both outside and inside of a protected building. For an outside release, an array of sensors surrounding the perimeter of the building is triggered to provide and indication that an external release has occurred. These external sensors operate in real time and are set at relatively high thresholds to prevent false positives. Upon initial detection of a release in a concentration above the threshold level of a perimeter sensor, a central processor connected to receive a release signal from the sensor will shut down all external air exchanges for the building and activate an over-pressure system for the building interior to insure that contaminated external air does not enter. Exterior sampling inlets are monitored to determine if high agent concentrations exist as a confirmation of the indication given by the perimeter sensors.

Abstract: A system for sealing a building air duct in response to a chemical or biological attack to prevent the building HVAC system from delivering the chemical or biological agent throughout the building. The system can include an inflatable bladder for disposition within an air duct, a source of gas for expanding the bladder, an initiator for initiating the gas expansion, and a detector for detecting the agent. One bladder is formed of a resilient material suitable for extending into duct corners. Another bladder is larger than the duct to be sealed and is formed of a non-resilient material capable of inflating and bunching into duct corners. One source of gas is a gas canister while another source of gas is a chemical composition capable of reacting and forming the gas. One bladder includes a foaming agent which can expand and solidify within the bladder. One initiator utilizes an electronic signal to initiate the gas expansion. Another initiator includes use of an RF signal to initiate the gas expansion.

Abstract: An apparatus and related method for selectively dispensing oxygen into an enclosed space is provided. The apparatus includes a pressurized container comprising oxygen and an actuator which can be moved between discharging and non-discharging positions, a means for mounting the pressurized container such that upon discharge the container will dispense oxygen into the enclosed space, an electrically-operable actuating means which effects movement of the pressurized container actuator between the discharging and non-discharging positions, and a sensor disposed in the enclosed space and in electrical connection with the actuating means for detecting a preselected property of the atmosphere in the enclosed space, wherein when the sensor detects the certain preselected property, the actuating means moves the aerosol container actuator into the discharging position, thereby providing for oxygen to be discharged into the enclosed space.

Abstract: An enclosure for housing people in the event of a serious air quality degradation is provided. A pressurized enclosure, either permanent or temporary, includes an air supply system for filtering and subsequently supplying clean air to the interior of the enclosure. The structure will be deployable and/or activated from a remote control station or from the protective structure itself. Life support elements are stored in the enclosure for use as needed.

Abstract: A low signature, low restriction, ballistically protective air intake assly for an exteriorly armored structure. The assembly is provided is comprised of one or more ducts having an entry end, an exit end and a spiralled duct portion between the ends. The entry ends communicate with an intake bell of armor material. The intake bell curves both away from the duct and out from duct openings at the entry ends. At the exit ends of the ducts are armor members faced toward the duct openings at the entry end. The armor members are positioned such that the spiralled duct portions lie between the armor members and the intake bell. Projectiles such as bullets travelling toward the entry end duct openings are either deflected away by the bell or caught by the armor member, whereby ballistic protection exists for elements in the armored structure interior to the assembly.

Abstract: A family of passive attenuators for shelter protection against explosions which reduce the pressure and impulse by combined effects of reflection, expansion, contraction and deviation contributed by the geometry of the attenuator.

Abstract: Controlling quantity of outside air drawn into a building being based upon the rate of change in the concentration of pollutants in the air, whereby the quality of air inside the building is substantially controlled. An air system includes an intake port for coupling the air system to a source of outside air, a sensor located proximal to the intake port for monitoring the quality of the air, a regulator for controlling the quantity of air drawn into the building, and a controller coupled to the sensor and the regulator for directing the regulator to reduce the quantity of air drawn into the building in response to the rate of change of the concentration of the pollutants. Also, substantially controlling the quality of air inside a building by controlling the quantity of outside air drawn into a building based upon the concentration of carbon dioxide in the outside air.

Abstract: This invention relates to a passive explosion protection device wherein a quick acting gate valve is designed in combination with means for directing and reflecting incumbent pressure surges to reduce or decelerate the surges prior to contact with the gate valve.