Abstract: A multi-stage fluid power turbine having application as a fire extinguisher to be ideally carried by a fire truck (e.g., a tanker or a pumper) so as to fight outdoor fires. An impeller and a propeller are located at one end of the fire extinguisher, and a fan is located at the opposite end. The propeller and the fan are mounted on a common inner shaft so as to rotate in a first direction. The impeller is mounted on a hollow outer shaft or tube that surrounds the inner shaft. The impeller includes a plurality of curved blades, each of which having a fluid duct running therethrough. Water under pressure being supplied from a source to the impeller blades is ejected from the fluid ducts thereof and thrust against the blades of the propeller, whereby to impart a rotational force to the propeller and a corresponding rotational force to the fan. The water ejected from the curved impeller blades causes the impeller to rotate in an opposite direction.

Abstract: The invention features an apparatus and method for positioning and supporting a sprinkler head in a ceiling, floor, or wall. In one aspect of the invention, a sprinkler head may be received by a sleeve extending through a broad surface of the plate. The plate may be configured to be removably attached to a support structure in the ceiling, floor, or wall and having an exterior surface exposed to the room or the plate may be attached to a decorative panel which is configured to be removably attached to a support structure in the ceiling, floor, or wall and having an exterior surface exposed to the room. The sleeve may be defined by an opening in the plate or it may be a separate structure permanently or removably attached to the plate.

Abstract: A housing unit includes two parts that define a fire-smothering chemical storing interior volume. The housing unit is transported to a target area of a forest fire by an aircraft and dropped onto the target area. An explosive charge is located inside the housing unit and is detonated when the housing unit impacts the ground. The explosion associated with the detonated charge separates the two parts of the housing and disperses the chemical from the open housing unit.

Abstract: Explosion suppresant container, for use in suppression of deflagrative explosions and other like events involving combustion associated with rapidly moving gases, comprising a container which, in use, contains suppressant, an outlet through which suppressant can exit the container progressively and be atomised into droplets and an inlet thorugh which air can enter the container and the shape of said container being such that, in use, the pressure of the explosion wind in the region of the outlet is less than that in the region of the inlet so that suppressant is driven out of the outlet into the explosion wind.

Abstract: A barrier for retarding fire comprises water-permeable fabric for covering a substantial area, the fabric having at least 9 pockets per square foot, each pocket having a volumetric capacity of between about 0.03 cubic inches and about 17 cubic inches, wherein substantially all of the pockets contain between about 0.01 and about 2 grams of superabsorbent polymer per cubic inch of volumetric capacity of the pockets.

Abstract: A highly efficient flame arrester adapted for use in preventing an external flame from backflashing upstream in a pipe, or a conduit, or a stream carrying a flammable substance. The flame arrester comprises a contained layer of nested ellipsoids formed from expanded metal sheets made from magnesium alloy foil. The arrester is useful in fuel tanks, combustion systems, sea-going tankers, hot water or space heaters, and the like.

Abstract: Methods are provided for a provision of hypoxic hypercapnic and hypoxic hypocapnic fire-extinguishing compositions for continuous use in human occupied environments. Breathable fire preventative atmospheres can be created using air separation and having increased or decreased carbon dioxide content.

Abstract: A highly efficient flame arrester adapted for use in preventing an external flame from backflashing upstream in a pipe, or a conduit, or a stream carrying a flammable substance. The flame arrester comprises a contained layer of nested ellipsoids formed from expanded metal sheets made from magnesium alloy foil. The arrester is useful in fuel tanks, combustion systems, sea-going tankers, hot water or space heaters, and the like.

Abstract: A fire fighting monitor includes a stationary element and a rotating element for directing a water stream at variable trajectories. Electrical components, such as drive motors, are mounted on the rotating element and are connected to electrical sources remote from the monitor. A wire management system is provided for the monitor that protects the electrical wiring while accommodating relative rotation between the stationary and rotating elements of the monitor. In one embodiment, the wire management system includes a two-piece wiring skirt with a first portion connected to the stationary element and a second portion connected to the rotating element. The two portions define a circumferential channel and associated openings for passage of a wiring cable. The cable incorporates a 180° bend within the channel that travels around the channel as the cable coils and un-coils within the channels of the two portions.

Abstract: A fire protection apparatus for an oil cooler in an aircraft auxiliary power unit compartment adapted to at least partially cover the oil cooler to thereby at least partially block flames from directly impinging the oil cooler in the event of a fire in the compartment. An associated means and method are also disclosed.

Abstract: A canister fire extinguishing assembly includes a device that is adapted for removably coupling to a fire extinguisher. The device includes a container that has a bottom wall and a peripheral wall that is attached to and extends upwardly from the bottom wall. The peripheral wall has an upper edge. A mounting is attached to an outer surface of the peripheral wall for removably mounting the fire extinguisher to the container. A valve actuating assembly is removably coupled to the extinguisher. The valve actuating assembly is adapted for actuating a valve of the fire extinguisher and for directing pressurized fire extinguishing composition therein into the container when smoke is detected within the container or a temperature of greater than 50° C. is detected.

Abstract: Fire extinguishing method, especially for spaces intended for the storage of aircraft, such as hangars, in which method a fire extinguishing medium, especially a liquid mist, is sprayed via at least one first nozzle (2) in the area, seen in a vertical direction, between an object (1) to be protected/extinguished, such as an aircraft, and the floor (3) or equivalent af the storage space. At least one first nozzle (2) is arranged to spray mainly in the area between the object (1) to be extinguished, such as an aircraft, and the floor (3) of the storage space or equivalent at least in a horizontal plane mainly in one first direction.

Abstract: A fire-suppression system for use in an aircraft having at least one cargo compartment is disclosed. Methods of suppressing a fire in the cargo compartment are also disclosed. The fire-suppression system, under one aspect of the present invention, can include at least one fire-suppressant vessel, at least one discharge conduit coupled to the at least one fire-suppressant vessel, and a valve arrangement coupled to the fire-suppressant vessel and the discharge conduit. The valve arrangement can have a first setting to discharge a fire suppressant at a first discharge rate after activation of the fire-suppression system, a second setting to discharge the fire-suppressant at a second discharge rate less than the first discharge rate, and a third setting to discharge the fire-suppressant at a third discharge rate greater than the second discharge rate during descent of the aircraft.

Abstract: With a device for extinguishing a fire, with extinguishing nozzles (10) arranged in areas of a structure, and of a building or a ship in particular, said extinguishing nozzles being connected in each case to a connection end (7a) of a supply line (7) filled with extinguishing fluid, said supply line connecting the extinguishing nozzles (10) to an extinguishing fluid supply device, which in the event of a fire imposes on the supply line (7) extinguishing fluid under pressure, simple and economical means allow for a reliable response, in that a bursting disk (33) is arranged in the area of the connection end (7a) of the supply line (7), which bursts at the attaining of a predetermined bursting pressure of the extinguishing fluid in the supply line (7), so that extinguishing fluid flows unimpeded into the extinguishing nozzle (10), and in which the supply line (7) in the position of rest is filled with extinguishing fluid at a pressure of rest which is lower than the bursting pressure.

Abstract: A manually operated candle flame extinguishing apparatus where there is a pair of arm members having flame extinguishing surface regions where there is a layer of flame extinguishing material. The flame extinguishing material reacts to the heat of the flame to emit a gaseous substances that extinguishes the flame. In one embodiment, the flame extinguishing material comprises a mixture of a bonding agent and sodium bicarbonate, with the sodium bicarbonate releasing carbon dioxide into region of the flame.

Abstract: A multilayer pipe which comprises at least an inner layer and an outer layer. The inner layer is made of extrudable plastic, such as polyethylene PE, cross-linked polyethylene PEX or polypropylene PP. The outer layer forms a fire-protecting layer and the matrix plastic of the outer layer is also made of extrudable plastic. A foaming agent, which does not react during the manufacture of the pipe, is mixed with the matrix. Further, the outer layer contains at least one additive in such a manner that the outer layer has a pipe-reinforcing component and a fire-retardant component. Most preferably, at least the outer layer is extruded by an extruder having a screw length ratio of less than 10 to its biggest diameter.

Abstract: A fire protection device for holding a fire extinguishing agent. The device is made from a dual-face enclosure coupled to one another through internal ribs, and is configured such that a single chamber defined by the faces and ribs is configured to contain all of the agent. The coupling between the ribs and the two panel faces promotes transfer of an energy source, such as ballistic impact, explosion or excessive temperature, to the front face to promote cracking and subsequent shattering of the front face in a brittle manner. This opening up of the front face releases the fire extinguishing agent in a thorough and well-dispersed manner.

Abstract: A device and method for inhibiting the spread of a fire to the roof of a building by placing a base supporting a sprinkler on the roof. A hose connected to the base and in fluid communication with the sprinkler provides a source of water ejected from the sprinkler onto the roof. The interior of the base may be wetted to increase its weight. A rope, normally stored on a spool removably attached to the base, may be used to reposition the base on the roof.

Abstract: A fire protection apparatus includes a plurality of bladders that are substantially filled with a non-flammable liquid via a manifold that is coupled to a source of non-flammable liquid and includes one or more nozzles that discharge the non-flammable liquid into each of the plurality of bladders. In one specific embodiment, the apparatus is initially in a substantially collapsed state at or near a ceiling. When fire or smoke is detected, the non-flammable liquid flows into the manifold. As the plurality of bladders begin to fill with non-flammable liquid, the weight of the filling bladders causes the fire protection apparatus to deploy, spanning from ceiling to floor. The bladders may include one or more discharge orifices that allow the non-flammable liquid to flow out of the bladder and down the exterior of the bladder once the bladder is filled to the level of its discharge orifices.

Abstract: An installation includes spray nozzles (1) connected to a pressurized extinguishing liquid supply line (3). Fire detecting elements are connected to elements controlling the supply of the nozzles. The installation comprises a compressed gas container (6) connected by a pipe (5) to a tank (4) containing the liquid and which itself is connected to the supply line (3). The conduit (5) is normally closed by a valve (7) with controlled opening so as to enable compressed gas contained in the container to penetrate into the tank to evacuate the liquid towards the supply line of the nozzles. The nozzles are associated with respective electrically driven fans (9) arranged in series so that an electrically driven fan located downstream of an upstream electrically driven fan sucks in the larger volume between the downstream and upstream electrically driven fans.

Abstract: A system (10) for dousing a fire, such as a tunnel, includes a conduit (11) for delivering a fire extinguishing liquid and a trough (12) extending parallel to the conduit (11) for receiving liquid from the conduit (11). A carriage (27) is arranged to move on a track comprising an upper edge (19) of the trough (12) and the carriage (27) carries a pump having a nozzle (25), a video camera (33) and an inlet (26) each of which can be controlled robotically from a remote control station. The inlet (26) is deployed in the trough (12) to draw liquid from the trough (12). The system avoids complicated docking procedures for the pump.

Abstract: A nozzle has a body with a central cavity from which a plurality of fire extinguishant fluid outlets extend. The outlets extend non-radially with respect to the central axis of the cavity, i.e. at least a portion of each outlet is inclined with respect to any plane parallel to and passing through the central axis of the cavity which intersects the portion of the outlet. The extinguishant from the non-radial outlets is thrown towards the walls of the chamber, along the paths. The jets of the fluid induce a rotational movement within the ambient fluid (for example, air) already present in the chamber, thus creating a vortex or rotational movement of the fluid within the chamber. In another embodiment, the vortex or rotational movement is generated by a nozzle assembly of generally cruciform configuration with three or more discharge tubes having outlets formed therein for discharging extinguishant in equi-angularly-spaced directions.

Abstract: An electrical fire suppression system for a structure having electrical fixtures includes a central computer system and a plurality of fire sensing devices distributed through the structure. A central fire suppression fluid tank is connected to fire suppression fluid pipes and a set of valves are mounted on the fire suppression fluid pipes to control fire suppression fluid flow therethrough, the valves being controlled by the central computer system. Each of the plurality of fire suppression fluid pipes extend into at least one of the electrical fixtures for transfer of fire suppression fluid directly thereto. Upon detection of fire, the fire sensing device signals the central computer system to determine the location of the fire and command the valves on the fire suppression fluid pipes to open to release fire suppression fluid therethrough for extinguishing the fire at the electrical fixture at which it started.

Abstract: Fire that has started in an enclosed space in an aircraft is smothered by closing or at least partly closing any air flow inlet and any air flow outlet of the enclosed space in response to a temperature rise caused by a fire in the enclosed space such as a toilet or crew quarters, galley cabinets, or the like. For this purpose fireproof, intumescent material is installed next to and along any apertures or openings in the enclosed space. When the temperature in the enclosed space exceeds the expansion temperature of the fireproof intumescent material the material expands into these apertures, thereby sealing or at least partly sealing these apertures, whereby air and thus oxygen access to the fire is reduced or even prevented, thereby smothering the fire. Preferably a guide surface guides the expanding intumescent material into the apertures or openings at least when the expansion starts.

Abstract: An operator-directed system for suppressing fire within a remote, outdoor, industrial installation has: (a) a means for capturing at a prescribed frequency video images of the remote area, (b) a means of transmitting these images to the operator's location which is some distance from the remote location, (c) a means, adapted to utilize these transmitted images, for detecting fire within the remote area, (d) a means located at the remote location for discharging a fire suppressant over the area, and (e) a means, located at the operator's location and utilizing the transmitted images, for allowing the operator to control the flow and direction of the discharging of the fire suppressant in the remote area.

Abstract: A fire protection apparatus includes a plurality of bladders that are substantially filled with a non-flammable liquid via a manifold that is coupled to a source of non-flammable liquid and includes one or more nozzles that discharge the non-flammable liquid into each of the plurality of bladders. In one specific embodiment, the apparatus is initially in a substantially collapsed state at or near a ceiling. When fire or smoke is detected, the non-flammable liquid flows into the manifold. As the plurality of bladders begin to fill with non-flammable liquid, the weight of the filling bladders causes the fire protection apparatus to deploy, spanning from ceiling to floor. The bladders may include one or more discharge orifices that allow the non-flammable liquid to flow out of the bladder and down the exterior of the bladder once the bladder is filled to the level of its discharge orifices.

Abstract: The invention comprises a detector arrangement adjustable for inclusion in a preventive protective system for a process plant comprising at least two sensor units (10, 10′), a unit (16a, 16b) for evaluating the output signal of each sensor unit and a calculation unit (17) capable of co-operating with the evaluating units (16a, 16b), the output signals of which calculation unit can cause an activating unit (18) to pass from a first position to a second position. One or more of a first category of sensor units (10) is designed, via its circuit (16a) for evaluating output signals, to be able to determine the energy content of a particle present. One or more of a second category of sensor units (10′) is designed, via its circuit (16b) for evaluating output signals, to be able to determine the fire tendency or tendency to some other damage of the particle surroundings.

Abstract: The invention relates to fire-fighting installation comprising a drive source for feeding medium into at least one heat releasing spray head (4), the drive source comprising a pump unit (5) for feeding liquid into said spray head through a supply line (3) which is filled with gas to a standby pressure, a gas source (9) for maintaining the standby pressure, and a sensor (2) arranged to provide a signal for starting the pump unit in response to a change occurring in the state of the medium in the supply line. In order to rapidly start the pump unit (5) of the drive source as a result of a minor flow occurring in the supply line (3) and in order for the fire-fighting installation to be applicable to be used at low temperatures, the sensor is a flow transducer (2) arranged to provide a signal to the pump unit (5), if the flow of gas in said portion of the supply line exceeds a certain predetermined value.

Abstract: Inerting method and apparatus reduce the risk of and extinguish fires in an enclosed space. The method provides that the oxygen content in the space is reduced to a set base inerting level and, in the event of a fire, is quickly further reduced to a complete inerting level. For carrying out the method, the apparatus includes an oxygen measuring device for the enclosed space, with a first system for producing the oxygen-expulsion gas or for extracting oxygen from the enclosed space, with a second system for rapidly feeding an oxygen-expulsion gas into the space being monitored, and with a fire detection device for detecting a fire characteristic in the enclosed space. A control unit sends a base inerting signal to the first system in accordance with the oxygen content in the enclosed space, and sends a complete inerting signal to the second system in accordance with a detection signal from the fire detection device.

Abstract: This process comprises a phase for detecting (26) the presence of the fire, as well as a phase for extinguishing this fire, comprising a phase of projecting (by 24), into the compartment (16), an extinguishing fluid, in particular water, as well as a phase of generating (by 2) air enriched in inert gas, from a source (5) of compressed air internal to the airplane, and a phase of admitting (by 10 and 12) at least a portion of this enriched air into the compartment (16).

Abstract: The present invention relates to a detector arrangement inlcuded in a preventative, protective system. The sensor lobes of at least two sensor units or sensor sections are arranged to cover the cross-sectional area of a tubular transport device. The arrangement includes a unit for evaluating the output signals of the sensor units, and an activation unit which is adapted to evaluate sensed sub-intensities relating to wavelength ranges and each deriving from said sensor units and to thus coordinate received wavelength-related and sub-intensity-dependent signals for calculating and establishing therefrom the relevant disposition of the particle to initiate fire and/or explosion or some other danger.

Abstract: A roof mounted evaporative cooling system utilizing a plurality of elongate deflectors that are supported and secured a short distance above the ridge of a gable roof by a plurality of spaced apart support bracket connectors. Each support bracket connector has a central longitudinal portion with a hose barb at each end, and a vertical portion in which a spray nozzle is mounted. The support bracket connectors are joined together by a plurality of sections of flexible tubing having opposed ends engaged on the hose barb of the connectors and secured by hose clamps. Water is supplied to the connectors and adjoined sections of flexible tubing by conduit connected through a battery operated timer to an outdoor water faucet or to the cold water supply pipe in the attic of the building. In operation, the fine mist of water, under standard domestic water pressure impinges and spreads evenly along the underside of the deflectors and drips off of lateral side portions of the deflectors and runs onto the roof.

Abstract: A low cost and mass-producible fire protection zone penetrating member is provided which can be set on piping or the like with a one-touch operation as well as a method of injection-molding the fire protection zone penetrating member. One expanding slot is provided on a cylindrical body made from thermally expanding graphite, thermally expanding rubber, or thermally expanding resin as a main ingredient thereof. The slot extends in a longitudinal direction. A piping inlet section is formed at an entrance of the expanding slot so that piping can be set in or taken out from inside the member by means of a one-touch operation. The fire protection zone penetrating member has the configuration as described above and is manufactured with an injection molding machine. The cylindrical body as a main body of the fire protection zone penetrating member may have an oval cross section, so that the fire protection zone penetrating member can be applied to piping having a diameter in a wide range.

Abstract: Ground fires are contained by an apparatus such as a brush cutter that creates a fuelbreak. The brush cutter (10) includes a rearwardly positioned tractor (11) and a forwardly positioned cutter assembly (12) for cutting fuelbreaks through brush. The brush cutter renders cut brush into smaller pieces that lay substantially on the ground after cutting and that smolder when ignited while lying on the ground. Outboard rectilinear cutting blades (49 and 51) rotate in their forward arcs toward each other so as to urge the cut brush inwardly toward the adjacent blades for re-cutting. The leading skirt (31) of the cutter deck (30) engages and bends the taller brush in the direction of movement of the brush cutter before the lower portions of the brush are cut, thereby inducing the brush to fall in the path of the brush cutter, so that it is overrun by the brush cutter and chopped. The chopped brush is disposed along the path of cut brush, thereby providing a pathway through the uncut vegetation.

Abstract: A highly efficient flame arrester adapted for use in preventing an external flame from backflashing upstream in a pipe, or a conduit, or a stream carrying a flammable substance. The flame arrester comprises a contained layer of nested ellipsoids formed from expanded metal sheets made from magnesium alloy foil. The arrester is useful in fuel tanks, combustion systems, sea-going tankers, hot water or space heaters, and the like.

Abstract: A rocket propelled textile and cordage net fire extinguishing system is deployed from a platform at a safe standoff distance from a fire. The rocket propelled matrix-like net flies over, lands on, and drapes over the burning site. A detonating means, or detonating network on the net is actuated to rupture spaced-apart canisters on the net that are filled with halon and/or other fire extinguishing compounds. The detonating network quickly disperses the fire extinguishing compounds to engulf and extinguish the fire safely and efficiently without unduly exposing fire fighters to danger. The net fire extinguisher system can extinguish fires aboard a maritime vessel, particularly when the burning craft cannot be safely boarded or burns so fiercely that it cannot be approached closely. The net fire extinguisher system can combat highly dangerous fires including chemical and oil fires, (oil rig fires) on land and at sea.

Abstract: The invention is a fire protection system and method to protect a building against airplane fuel fires. The components of the fire protection system include a central annunciator panel, a supply line network tied into a plurality of fire retardant reservoirs to transmit extinguishing material throughout the fire protection system, an exhaust system to expel harmful smoke and fumes coming from an airplane fuel fire and a standpipe system with a fire hose to extinguish localized airplane fuel fires. The fire protection system can also be controlled either by personal computer or microprocessor.

Abstract: The invention is a piece of firefighting equipment called a piercing nozzle. The piercing nozzle comprises a hollow tube connected to a hose and adapted for conveying water or other fire suppressant fluid near a pointed head adapted to penetrate a barrier and to release the water or fire suppressant fluid in an adjoining room. The pointed head contains a plurality of holes angled in various directions so as to spray the fire suppressant fluid over a wide area in the adjoining room so as to protect firefighters from flames or superheated air when they enter the adjoining room. The pointed head may be shaped like a cone attached to which is a plurality of sharp blades designed to facilitate penetration of the barrier. Attached to the hollow tube is a sliding weight with handles used for pounding the pointed head through the barrier.

Abstract: A device for securing a fire extinguisher to a welding tank is disclosed. In the preferred embodiment, an adjustable retaining strap is connected to a fire extinguisher hanger having opposing flanged members that define a receiving area for the neck of a fire extinguisher. Each flanged member has sections of stepped thickness to provide a press fit for the neck of the fire extinguisher into the receiving area. A utility hook is also attached to the retaining band for hanging hoses, welding masks and respirators. A utility box is also attached to the retaining band to provide storage for smaller objects such as welding tips. Alternative embodiments provide a retaining clip for receiving and retaining the fire extinguisher and a retaining clamp for receiving the welding tank. Other alternative embodiments provide a collar and hanging assembly for attaching the fire extinguisher hanger to the welding tank. A securing strap is also disclosed for securing collared embodiments to the welding tank.

Abstract: A fire extinguishing system is adapted particularly for incorporation with a clothes dryer in a home laundry area, for extinguishing any fire occurring from ignition of lint or other combustible material. The system may also be installed with other large, heat producing appliances (kitchen stove, etc.) for extinguishing any fire resulting therefrom. The system includes one or more conventional, heat activated fire extinguisher spray heads connected to the main water line of the structure. Each extinguisher head is secured in a fitting including an automatically actuated water shutoff valve, which closes after the fire has been extinguished to reduce water damage to the surrounding area. The system also includes an automatic disconnect or shutoff for at least the electrical circuit associated with the appliance which causes activation of the extinguisher head, and may further include an automatically actuated local (household) and/or distant (fire department) alarm.

Abstract: An automatic engine fire extinguishing system for automatically detecting and extinguishing an engine fire of a vehicle permitting a user to exit the vehicle without having to worry about actuating the fire extinguishing system. The system includes at least one canister that is mountable to the vehicle and positionable adjacent to the engine. The canister has an interior for holding a fire extinguishant under pressure. A valve is mounted on the canister for controlling a flow of the fire extinguishant from the canister. A conduit is coupled to the valve for carrying the fire extinguishant flowing through the valve away from the canister. The conduit has at least one opening for emitting the fire extinguishant from the conduit. At least one fire detector is provided for detecting a fire and opening the valve permitting the fire extinguishant to flow through the conduit exiting the opening and extinguishing a fire.

Abstract: An apparatus for inhibiting wide dispersal of heat, smoke and noxious gases from a fire in a structure such as a building occupied by people, thereby facilitating evacuation of the building through exit routes rendered relatively smoke-free by the apparatus includes a portable enclosure which has an entrance opening hermetically sealable to a doorway opening when the enclosure is moved into position adjacent to the doorway, and encloses an open-top tank which contains water, and a vertical baffle which protrudes downwardly from a roof panel of the enclosure, the baffle being disposed transversely across the enclosure with a lower edge of the baffle immersed beneath the surface of the water to thereby form a water-trap type air-lock.

Abstract: A fire extinguishing apparatus (10) producing a mist of water vapour with a median droplet diameter of between 50 and 500 micron for extinguishing fires in a confined risk area. The mist being generated through nozzles (18) operating at <2000 kPa (i.e. low pressure). The fire extinguishing apparatus using less than 1.0 litres of water per cubic meter of the risk area in which the fire is contained (i.e. a small volume of water).

Abstract: The invention relates to an installation for extinguishing fire in a unit, preferably a train with at least one railway carriage, or a tunnel, the installation comprising several spray heads (3) whereof a number that is smaller than the total number of spray heads can be activated according to the location of the fire in the unit, and a drive source (5) for delivering extinguishing medium through a pipe system (4) to the activated spray heads.

Abstract: A fire fighting system is installed below deck in a passenger aircraft for protecting freight and baggage loading areas. The system has a fire extinguishing medium storage container connected through a pipe line to one or more medium discharge nozzles. A compartment such as a passenger and/or crew rest compartment installed below deck is linked to the system by a pipe line extension (10, 12, 13) connected to at least one additional fire extinguishing medium discharge nozzles in the compartment.

Abstract: A fire blanket comprising a generally flexible substrate and a chemical compound which reacts endothermically when heated. The chemical compound is preferably an alkali metal salt and more preferably a potassium or sodium salt. The compound may be a solid at room temperature s or forms an alkali solution.

Abstract: A fire retarding device for covering a hot casing is disclosed. The device includes a member adapted to cover at least a portion of the hot casing and consists at least in part of a porous flame arresting matrix having a plurality of substantially interconnected voids defined therein. The voids have a maximum size which is predetermined to limit flame propagation of an ignited fluid across said voids. One possible construction for the matrix is one or more intermingled metal filaments arranged in a blanket-like form.

Abstract: This invention is geared at attacking the scourge of explosive fires, burns, environmental pollution, or other such hazards associated with the use, transport, and storage of fuels and other hazardous substances, before they occur, including the explosion hazard present in many automotive rear-end collisions. This is achieved by swiftly reacting a “disabler” or “neutralizer” with the hazardous substance, voluntarily or by automation, on the occurrence of predetermined events that position the hazardous substance to threaten a greater than desired risk of harm. According to one of the preferred embodiments of this invention, the formation of combustion vapors in the ullage of fuel tanks is altogether prevented.

Abstract: A method for collecting and eliminating flying dust and for fire extinguishing use, characterised by spraying the space concerned by jets of air to which water and possibly surfactant have been added by injection into said jets.

Abstract: In accordance with the present invention, a modular clean room plenum is provided. This modular clean room plenum includes a rectangular plenum body with an air barrier forming a top surface of the modular clean room plenum and a ceiling grid forming a bottom surface of the modular clean room plenum. The modular clean room plenums are attached to the primary support structure of a clean room building in whatever number and configuration is required by the clean room layout. By providing, in one modular component, the air barrier layer, the ceiling grid, the framework between the two layers, the fire sprinkler system, the air transfer ducts, the balancing dampers and all of the normal components of the ceiling grid, the cost and time required for construction can be significantly decreased.