Abstract: There is provided a valve for controlling the release of fire suppressant from a pressurized container, said valve comprising a diaphragm configured to perforate upon action of a shockwave directed onto the surface of said diaphragm, a pyrotechnic charge arranged and adapted to combust to produce combustion products that form a shockwave directed onto the surface of said diaphragm, and a device encasing said pyrotechnic charge. The device comprises a hollow, elongate channel located over said pyrotechnic charge and directed at the center of said diaphragm so as to focus or direct said combustion products onto the center of said diaphragm. The elongate channel has a length that is at least 1.5 times its smallest width.

Abstract: A fluid ejection device for example used as a fire extinguisher in which ejected fluid is an extinguishing agent in liquid or powdery form. The device includes: a cylinder shaped tank, split hermetically, perpendicular to its axis, into two chambers by a piston, slidable axially inside the tank; a first chamber, including a non-gaseous fluid, which communicates with an ejection port closed by a cap, which can open for a pressure greater than or equal to a defined pressure in the first chamber; a second pressurization chamber to be connected to a mechanism increasing pressure in the chamber; and a mechanism to link the piston to the tank in full fixity at a storage position, which mechanism can break and release the piston for axial translation at a pressure higher than or equal to a given pressure in the pressurization chamber, to cause the fluid to be ejected.

Abstract: A self contained fire extinguisher system that does not need external power in order to sense or initiate a release of a fire suppression medium, includes components configured to utilize a linear sensor network that can be connected to at least one and/or different sources of fire suppression mediums. A linear temperature sensing cord can be routed over a large area not practical with individual sensors. The cord can also actuate several and different sources of fire suppression mediums to maximize the suppression of a fire.

Abstract: There is provided a hand-held aerosol fire suppression apparatus, having safety pole, button, enclosure of cartridge, enclosure of cooling layer, jet nozzle, tapered jet orifice, enclosure of apparatus, combustion chamber, rear fender, piezoelectric ceramics, rear cap and safety ring; wherein the rear cap is screwed to the enclosure of apparatus; the jet nozzle is screwed or fitted to the enclosure of apparatus; a chemical agent is installed in the enclosure of cartridge and a cooling material is installed in the enclosure of cooling layer in the enclosure of apparatus; a thermal insulating layer is installed between the enclosure of apparatus and the enclosure of cartridge, between the enclosure of apparatus and the enclosure of cooling layer, and between the rear fender and the chemical agent; the combustion chamber is installed between the enclosure or cartridge and the enclosure of cooling layer; a groove is arranged on the enclosure of apparatus to facilitate gripping.

Abstract: A fire extinguisher is shown and described. The fire extinguisher may include a housing, a vessel positioned within the housing, the vessel retaining a fire suppression agent therein, and a discharge port positioned in the housing and operatively coupled with the vessel, where the fire suppression agent is capable of being expelled from the discharge port. The fire extinguisher may include an electrical connector positioned on the housing, the electrical connector capable of operatively securing to an electrical outlet, where the electrical connector is rotatable relative to the housing.

Abstract: A propulsion device for an agent, such as an extinguishing or cooling agent, contained in a cavity has at least a cap and a port configured to open above a calibrated pressure inside the cavity. A pressure generator is fastened to the cap and triggers the propulsion of the agent. The pressure generator has at least two containers, each having an exit ending inside the cavity and releasing a propulsion gas. At least one container is pressurized with an inert-type gas, such as helium, suited for minimal temperature fluctuations induced inside the cavity during a relief of pressure of the gas from at least one of the containers. When the gas expands it is the direct mechanical propellant of the agent.

Abstract: The present disclosure relates to an inner cylinder of an explosion-venting-type aerosol fire extinguishing device, including a cylinder body (3) and a cylinder cover component (4) arranged on one end of the cylinder body (3), and an explosion-venting device arranged on the cylinder body (3). The explosion-venting device includes a friction layer (11), a connecting rod (12), a guiding unit (13), and a limiting device (14). The connecting rod (12) are connected with the cylinder cover component (4). The friction layer (11) is provided between the connecting rod (12) and the cylinder body (3). The friction layer (11) provides a frictional resistance and a buffering force for the connecting rod (12) when the connecting rod (12) is displaced, under the guidance of the guiding unit (13), along a direction that a hot air stream of the cylinder body (3) is jetting towards. The guiding unit (13) is a device capable of providing guidance for the connecting rod (12) when the connecting rod (12) is moving.

Abstract: The invention is directed to a fire-extinguishing composition comprising an oxidant, a secondary fuel and a phenol-formaldehyde resin, wherein the phenolformaldehyde resin molecule contains more than 3 aromatic ring structures and its use to extinguish a fire, especially a fire in an enclosed space. The invention is also directed to a process to prepare such a composition and to the use of the composition to extinguish a fire by an aerosol which is formed during burning of the composition.

Abstract: The invention relates to a method for thermally initiated triggering of an aerosol fire extinguisher having a strike pin (6) acted upon by an inner spring (7) and locked in the stand-by state, and after thermal initiation, the lock is removed and the strike pin (6), driven by the force of the inner spring (7), strikes against a mechanical firing cap (1), whereby an initial firing material is released in the firing cap (1), igniting a booster charge (2), the hot conversion gas thereof igniting a pyrotechnic extinguisher charge in the aerosol fire extinguisher. In order that an absolutely reliable initiation takes place under the same conditions throughout the entire service life of the aerosol fire extinguisher, it is proposed that only immediately after the thermal initiation, when the firing pin (6) is still locked, the inner spring (7) is brought to the necessary tension for triggering the firing cap (1), and only after reaching said tension is the lock of the firing pin (6) automatically released.

Abstract: A fire suppression system for producing an inert gas mixture having a minimal amount of carbon monoxide, particulates, or smoke. The inert gas mixture may be generated by combusting a gas generant. The gas generant may be a composition that includes hexa(ammine)-cobalt(III)-nitrate. The fire suppression system also includes a heat management system to reduce a temperature of the inert gas mixture. In one embodiment, the system includes multiple gas generators and is configured to ignite the respective gas generant of each gas generator in a predetermined, time based sequential order. For example, the gas generant of each gas generator may be ignited in a sequential order at specified time intervals. Methods of extinguishing fires are also disclosed.

Abstract: A new bi-directional horizontal spraying aerosol fire-extinguishing apparatus is disclosed, which comprises a shell structure, an aerosol generator including an aerosol generating agent and disposed inside the shell structure, and a control unit for initiating the aerosol generator. The bi-directional horizontal spraying aerosol fire-extinguishing apparatus of the present invention is characterized in that both ends of the shell structure or of the aerosol generator are respectively provided with an aerosol exhaust passage. The advantages of the present apparatus are in that it can reduce the spraying time of the aerosol extinguishing agent in the case of ensuring the fire-suppression efficiency, and increase the charge capacity of the fire-extinguishing apparatus, so that the capacity efficiency of the present apparatus is totally increased, and the present apparatus is easy and safe to be installed and does not occupy the useful space.

Abstract: A fire suppression system for producing an inert gas mixture having a minimal amount of carbon monoxide, particulates, or smoke. The inert gas mixture may be generated by combusting a gas generant. The gas generant may be a composition that includes hexa(ammine)-cobalt(III)-nitrate. The fire suppression system also includes a heat management system to reduce a temperature of the inert gas mixture. In one embodiment, the system includes multiple gas generators and is configured to ignite the respective gas generant of each gas generator in a predetermined, time based sequential order. For example, the gas generant of each gas generator may be ignited in a sequential order at specified time intervals. Methods of extinguishing fires are also disclosed.

Abstract: A portable fire-extinguisher comprises a metal casing (3) with an internal chamber (4) for housing a charge (5) of a solid substance which can be transformed, at a predetermined temperature, into an aerosol with flame-extinguishing properties. A delivery opening (7) puts the chamber (4) into communication with the exterior. An explosive cartridge primer (10), associated with a striker mechanism (13), is provided for triggering the reaction of the extinguishing charge (5). The primer (10) and the striker mechanism (13) are located near a distal end (5a) of the charge (5) so as to trigger the chemical reaction of the charge (5) from that end.

Abstract: A fire suppression device including a fire suppression agent generator. The device further includes trigger mechanism adapted to begin generation of the fire suppression agent from the fire suppression agent generator. A container at least partially surrounds the fire suppression agent generator and the trigger mechanism, the container includes a discharge port that directs fire suppression agent in at least two opposed directions. In one example, the discharge port extends substantially around a perimeter of the container.

Abstract: A fire suppression device including a fire suppression agent generator. The device further includes trigger mechanism adapted to begin generation of the fire suppression agent from the fire suppression agent generator. A container at least partially surrounds the fire suppression agent generator and the trigger mechanism, the container includes a discharge port that directs fire suppression agent in at least two opposed directions. In one example, the discharge port extends substantially around a perimeter of the container.

Abstract: A portable fire-extinguisher comprises a metal casing (3) with an internal chamber (4) for housing a charge (5) of a solid substance which can be transformed, at a predetermined temperature, into an aerosol with flame-extinguishing properties. A delivery opening (7) puts the chamber (4) into communication with the exterior. An explosive cartridge primer (10), associated with a striker mechanism (13), is provided for triggering the reaction of the extinguishing charge (5). The primer (10) and the striker mechanism (13) are located near a distal end (5a) of the charge (5) so as to trigger the chemical reaction of the charge (5) from that end.

Abstract: An ignition unit for a fire extinguishing assembly has an ignition unit housing with a firing pin disposed within the housing. A spring is coupled to the firing pin, and a restraining device holds the pin in place in the housing. A formed eutectic holds the restraining device in place such that when the eutectic deforms, the firing pin is released and moved by the spring in a desired direction.

Abstract: A fire retarding canister has a housing with aerosol exit ports. A cooling material is supported within the housing above the exit ports. A combustion chamber within the housing is above the cooling material. An aerosol forming composition is supported within the housing above the combustion chamber. An ignition mix extends into the aerosol forming composition for igniting the aerosol forming composition.

Abstract: A fire extinguishing assembly includes an ignition unit and an aerosol generating unit. The ignition unit in one embodiment comprises a spring loaded piston that is held under spring tension by a formed eutectic, which deforms at a predetermined temperature. When such temperature is reached, the piston is released, and strikes a primer to ignite a desired pyrotechnic in the aerosol generating unit. In one embodiment, the piston strikes a primer, which ignites an ignition mix, which further ignites the pyrotechnic. The ignition mix may be formed of the same material as the pyrotechnic. The ignition unit may be releasably engaged with the aerosol generating unit that contains the pyrotechnic. In one embodiment, it is formed with threads for mating with threads on the canister.

Abstract: An automotive vehicle includes a vehicle body and at least one reservoir containing a fire suppressant agent. A distribution system receives the fire suppression agent from the reservoir and conducts the agent to at least one location about the vehicle's body in response to the determination by a sensor system and controller that the vehicle has been subjected to a significant impact. The reservoir is protected by a thermal protection barrier applied to the reservoir's outer surface, excluding the base of a pyrotechnic propellant.

Abstract: A firearm for extinguishing a fire from a position remote from the fire. A cartridge is disposed in, and is selectively discharged from, a pistol. The cartridge includes a head containing a pressurized fire extinguishant and a casing containing a propellent. The casing is removably attached to the head by mating portions of hook and loop fasteners so as to allow the casing and the head to be independent of each other prior to use. The bead has a lip containing a chamber communicating with the pressurized fire extinguishant therein and which exits through through bores in both sides of the lip, respectively. A release pin is removed from the through bores and the firing apparatus is activated causing the cartridge to exit the barrel and expel the pressurized fire extinguishant through the through bores on its way to the fire during use.

Abstract: A fire extinguishing assembly includes an ignition unit and an aerosol generating unit. The ignition unit in one embodiment comprises a spring loaded piston that is held under spring tension by a formed eutectic, which deforms at a predetermined temperature. When such temperature is reached, the piston is released, and strikes a primer to ignite a desired pyrotechnic in the aerosol generating unit. In one embodiment, the piston strikes a primer, which ignites an ignition mix, which further ignites the pyrotechnic. The ignition mix may be formed of the same material as the pyrotechnic. The ignition unit may be releasably engaged with the aerosol generating unit that contains the pyrotechnic. In one embodiment, it is formed with threads for mating with threads on the canister.

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: A portable aerosol fire-extinguisher has an elongate metal casing (3) with a handle (2) and an internal chamber (4) for housing a charge (5) of a solid substance which can be transformed, at a predetermined temperature, into an aerosol with flame-extinguishing properties, and which is delivered through an opening (7). An inflammable charge (13) which can be ignited by means of an activation element (14, 16) is provided for triggering the reaction of the extinguishing charge (5). The activation element can be operated manually in order to produce friction between the inflammable charge (13) and the activation element (14, 16), such as to bring about ignition of the inflammable charge (13).

Abstract: The apparatus (1e, 1f) according to the invention has a storage tank (5) which is or can be filled with an active substance (3), a pyrotechnic charge (6; 39) in a first end region (9) of the storage tank (5), a cartridge-case base (13) which can be driven by propellant gases of the fired charge (6; 39) in order to drive the active substance (3) out, and has a unit (7) for atomizing the active substance (3) being driven out, and at least one sensor (35a; 35b) which interacts with the charge (6; 39) in order to initiate the latter. The atomizer unit (7) is formed as an atomizer pipe (7) having a plurality of outlet nozzles (15) in the pipe casing in order to fill a spatial region (14) with a mist of the material of the active substance (3). One (18) of the ends of the atomizer pipe (7) is arranged in a second tank end region (19), facing away from the first and extending from the latter. The apparatus is distinguished by a compact and economical configuration with good automatic filling of a space with mist.

Abstract: The present invention comprises an extension tube that attaches to the bore end of a water jet producing device that is used to render safe improvised explosive devices by disrupting the firing train of said devices. The present invention comprises an extension tube having a sudden enlargement of cross section, that may be formed by adjusting the dimensions of the interior diameter of the extension tube, at the point of attachment, and a series of apertures in the attachment tube. The extension tube provides a more uniform jet of water with more focused energy by containing the jet until breech pressures are vented. Better control of the water jet will be maintained during firing operations. Further, more energy may be put into the water jet to accomplish specific tasks.

Abstract: A fire suppression system for a substantially enclosed area comprises: a plurality of solid propellant aerosol generators disposed about the enclosed area for exhausting a fire suppressant aerosol that is substantially void of an ozone depleting material into the enclosed area. Each aerosol generator including an ignition element for igniting the solid propellant thereof. Each ignition element of the aerosol generators being coupled to a fire control unit which is operative to ignite the solid propellant of at least one aerosol generator utilizing the ignition element thereof to exhaust fire suppressant aerosol into the enclosed area.

Abstract: A portable aerosol-type-fire-fighting protection device comprises a hollow body (1) which includes in the interior (10) thereof, and communicating with the exterior by way of an opening (3), a chamber (11) for accommodating a solid substance (7) capable of being transformed at a given temperature into an aerosol with flame-extinguishing properties and being discharged as such by way of the opening. A handle (2) is fixed with respect to the body and within its interior there is a space. The accommodating chamber has an electrical resistor (12) for triggering the transformation from solid into aerosol, energised by way of a switch (13) from batteries (14) accommodated in the space (15) in the handle.

Abstract: A method of for stopping and containing fires involving, in one embodiement, taking the fumes from a turbine, jet or any chemical source, and running it through a giant muffler, radiator or pipe if needs cooling. The radiator cools the fumes down from the engine or chemical source. This is a system that uses the fumes to cool the fire down, and blow the oxygen away. When the gasses pass over the fire, it will suck the heat and oxygen away, and replace it with a non-combustible gas. This system can also be used to put architectural fires, by blowing the fumes in the building from one side, keeping oxygen from entering the building, by building up pressure, until no more oxygen can enter the building. This is essentially a mechanism or means that one way inject water into flow of the fumes.

Abstract: A method and a device for producing a sufficient quantity of a fire suppressing gaseous product to substantially suppress a fire. The device has a first stage gas source containing a pyrotechnic gas generating material and a second stage gas source in fluid communication at a first location with an outlet of the first stage gas source and, at a second location, with an outlet for dispersing gas. The second stage gas source contains at least one liquified gas or supercritical carbon dioxide, where the first stage gas source is capable of providing a sufficient quantity of gas at a sufficiently high temperature to vaporize at least a portion of the liquified gas or supercritical carbon dioxide in the second stage gas source, thereby producing a fire suppressing gaseous output, which exits the device through the outlet for dispersing gas, in an amount sufficient to at least partially suppress a fire.

Abstract: A device for discharging a fire retardant material comprising a housing capable of storing a fire retardant material. The housing has an initiator attached to a first end, while a discharging port is attached at a second end. Additionally, sealed within the housing is a driver which forces the fire retardant material towards the discharging port. The driver follows a path defined by a bypass tube located centrally within the housing. The driver is forced along the path by exit gases created by the initiator attached at the first end. The housing also has a choke assembly located near the second end thereof. The choke assembly selectively controls the rate at which the fire retardant material and the pressurized gases exit through the discharging port. The choke assembly has a choke body with a first and second cavity. Furthermore, choke body has passageways and apertures for directing the flow of both the fire retardant material and the pressurized gases.

Abstract: A method for extinguishing fire, wherein a gas an aerosol mixture is fed into a space includes steps of igniting a pyrotechnic composition that ensures a predetermined temperature profile during burning and a predetermined composition of the gas and aerosol mixture completely oxidizing the combustion products of incomplete combustion of the pyrotechnic composition by causing them to pass through a bed of catalytically active substances, which is located in the zone of the maximum temperature of the temperature profile of combustion of the pyrotechnic composition, with the temperature remaining constant by redistribution of said profile; cooling the combustion products and completely oxidizing them by reacting with substances having high heat absorbing capacity, concurrently with the filtering of the combustion products according to composition of the gas phase and particle size of the aerosol phase.

Abstract: A fire extinguisher comprises a pressure bottle containing the fire extinguishing material and having mounted therein a diffuser-actuation housing. A source of pressurized gas is in at least one of the pressure bottle or the housing or may be in both. The housing has internal exhaust ports for permitting flow of the fire extinguishing material from the interior of the pressure bottle to the interior of the housing and external diffuser ports for delivering the fire extinguishing material from the interior of the housing to the area of a fire. Intermediate the internal exhaust ports and the external diffuser ports there is positioned a burst element, for interrupting the flow path between the internal exhaust ports and the external diffuser ports until the burst element is ruptured.

Abstract: Fire extinguishing or suppression apparatus and method employing a liquid pyrotechnic composition of a ternary mixture of hydroxyl ammonium nitrate, an amine nitrate salt, and water, in a closed combustion chamber of a pressure container. The apparatus is constructed to permit a large volume of water vapor exothermically generated by the reaction of a liquid pyrotechnic composition to be discharged from the combustion chamber and pressure container to an area of a fire.

Abstract: A nozzle unit for discharging and atomizing a fire or explosion suppressant comprises a rigid-walled cylindrical container having a nozzle portion at one end with radially directed discharge orifices. A rupturable barrier normally blocks the nozzle portion from the interior of the container. At the other end of the container, a piston is positioned so as to be sealingly slidable along the container in response to pressure generated by a gas pressure generator. The moving piston pressurizes the suppressant agent within the hollow interior until the rupturable barrier bursts. The suppresessant agent is accelerated substantially instantaneously and discharged in atomised form through the discharge orifices. The gas pressure generator may be a pyrotechnic gas generator. The arrangement is such that the pressurizing gas does not come into contact with the suppressant agent.

Abstract: There is disclosed an apparatus for suppressing a fire. The apparatus includes a gas generator containing as a propellant, a mixture of a fuel, strontium nitrate as an oxidizer, and magnesium carbonate. When the propellant is ignited, a nitrogen rich effluent is generated that is effective to suppress the fire. By providing the propellant with at least 35%, by weight, of magnesium carbonate, the generation of effluent by-products that are corrosive to aluminum is inhibited.

Abstract: There is provided an apparatus for suppressing a fire. The apparatus includes a gas generator charged with a combustive propellant. Upon ignition, the combustive propellant generates a copious volume of gas. The gas is directed by a first conduit to a chamber containing a packed powder that is effective to suppress a fire. A second conduit directs the gas driven packed powder to the fire. In one embodiment, the fire suppressing packed powder is magnesium carbonate.

Abstract: An apparatus for suppressing a fire comprises a gas generator in communication with a vaporizable liquid by means of a first conduit. When activated, the gas generator generates an elevated temperature burst of a first gas containing carbon dioxide, nitrogen, and/or water vapor. This first gas vaporizes substantially all of the vaporizable liquid, generating a second gas having flame suppressing capabilities. The second gas is directed at the fire to suppress and extinguish it.

Abstract: An apparatus for suppressing a fire comprises a gas generator containing a propellant and a fire suppressant as a mixture of compacted powders. The average diameter of a fire suppressant particle is larger than the average diameter of a propellant particle and the larger fire suppressant particles form discrete cooling sites that do not dramatically reduce the propellant burn rate.

Abstract: A container for a fire extinguishing or explosion suppressing agent is provided with a pressure responsive, frangible disc which normally closes the outflow orifice for the agent. The container is provided with at least one gas-injection port to which a compressed gas generator is connected. The container is normally in an unpressurized state; and, when the gas generator is activated, the disc will be ruptured during the pressure buildup within the container and the agent will subsequently be ejected from the container by the injected gas.