Abstract: An industrial gas spring with a pressure chamber in a casing with an end wall, a piston rod received at least in part in the casing for reciprocation between extended and retracted positions and a pressure relief assembly carried by the end wall. The pressure relief assembly may have a membrane communicating with the pressure chamber and a plunger configured to breach the membrane when engaged and moved by the piston rod when it overtravels its design intended retracted position.

Abstract: Improvements to a portable fire extinguisher are disclosed. The improvements allow for frequent and simplified maintenance of a fire extinguisher with minimal training and without need for custom equipment. The improvements include an anti-bridging mechanism that can be articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. These features will extend the service intervals while maintaining the fire extinguisher in a ready condition.

Abstract: A fire extinguishing system is provided for a tire of a vehicle. The fire extinguishing system includes fire extinguishing injectors filled with fire extinguishing chemicals and installed in the vehicle to be able to inject the fire extinguishing chemical to the tire. A fire detection line is installed to connect between the fire extinguishing injectors. Each of the fire extinguishing injectors is configured to inject the fire extinguishing chemical when a fire of the tire is detected through the fire detection line.

Abstract: A fire extinguishing system for a tire of a vehicle is capable of effectively responding to a fire in all tire areas of the vehicle, and of spraying fire extinguishing agent selectively only for the tire having the fire, thereby performing effective fire extinguishing. The fire extinguishing system includes: a fire detection sensor configured to detect the fire in the tire of the vehicle; a fire control unit configured to receive a signal output from the fire detection sensor and to output a control signal for spraying fire extinguishing agent when the fire control unit determines a fire occurrence; and a plurality of fire extinguishing agent sprayers configured to spray the fire extinguishing agent toward the tire having the fire according to the control signal output by the fire control unit, in a state of being filled with the fire extinguishing agent therein.

Abstract: Improvements to a portable fire extinguisher are disclosed. The improvements allow for frequent and simplified inspection and maintenance of a fire extinguisher with minimal training and without need for custom equipment. The improvements include an anti-bridging mechanism that can be articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. Additional improvements include a larger opening to more quickly fill and inspect the powder within the chamber. Another improvement includes the use of a CO2 cartridge located external to the chamber to allow easier servicing or replacement of just the CO2 cartridge as well as the ability to maintain the chamber in an un-pressurized condition, allows for non-HASMAT shipping. These features will extend the service intervals while maintaining the fire extinguisher in a ready condition.

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 pepper spray gun assembly having a trigger valve for dispensing a non-lethal spray, such as a pepper spray. The assembly includes a storage cylinder for receiving a non-lethal spray charge and a smaller pre-charged charging cylinder for engaging the storage cylinder. The charging cylinder is fluidly coupled to the storage cylinder so as to provide a regulated gas in the head space of the storage cylinder. When the trigger of the trigger valve is operated, the regulated gas will force the charge to be expelled through the nozzle of the trigger valve assembly.

Abstract: A protective device with a pressure tank (1) includes an elastic extinguishing agent balloon (3) filled with an extinguishing agent (23) and a propellant, where the elastic extinguishing agent balloon (3) borders onto at least one elastic component (32) and this elastic component is fluid permeable. The upper part of the elastic extinguishing agent balloon (3) is formed as a sealing ring. The device has the advantage that when it is used in mobile and stationary objects, where vibrations and other forces act on the extinguishing device, a high degree of operational safety of the extinguishing device can be assumed, that makes it possible to discharge almost 100 percent of the extinguishing agent without any malfunctioning. The operation of the extinguishing device is also temperature independent so that no additional safety measures are required in the case of a change in the spatial attitude of the pressure tank.

Abstract: The present invention provides a fire extinguishing apparatus being inexpensive in manufacturing cost, easy to handle, and it enables a storage tank to be refilled with fire extinguishing sand during a fire extinguishing. A fire extinguishing apparatus of the present invention includes a sand container 3 having fire extinguishing sand a nitrogen gas cylinder 4, and an ejector 5 provided nitrogen gas taken out via a decompression valve 6 from the nitrogen gas cylinder 4. The ejector 5 is connected to a suction tube 7 sucking the fire extinguishing sand from the sand container using negative pressure generated by a nitrogen gas stream and a delivery tube 8 delivering the sucked fire extinguishing sand and the nitrogen gas. The sand container 3 has a lid plate provided with a sand inlet enabling opening and closing, which enables the sand container to be refilled with the fire extinguishing sand during a fire extinguishing.

Abstract: A fire suppression system for a container including a first tank containing a first liquid component of a two-part foam and a second tank containing a second liquid component of the foam. The system also includes at least one liquid component release device configured to be selectively capable of releasing the first and second components from their respective containers upon receipt of a signal from a fire detector upon detection of a fire. The two-part foam components are propelled through the system by a pressurized propellant that, upon release of the release device, causes the exit of the foam components from their respective tanks, through a mixing conduit to at least one nozzle. The nozzle is configured to spray the liquid component foam mixture into the container wherein the foam cures into a substantially semi-rigid, closed cell foam that is substantially impermeable and may have charring and/or intumescence properties.

Abstract: An assembly for mixing and metering a foaming agent with a pressurized fluid output of a fire extinguisher, the extinguisher including a body with a trigger for issuing the fluid through an outlet. The assembly includes a manifold adapted to being attached at an inlet end to the extinguisher outlet, the manifold having an outlet end which is adapted to engage with an inlet of a flexible hose. A canister contains a volume of a fire retardant (dry or foaming) agent and is engaged to an intermediate location of the manifold between the inlet and outlet. In this manner, the manifold mixes the foaming agent with the fluid output prior to delivery through the hose.

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: A compact device for ejecting a fluid including two chambers separated by a separating element of piston type. One of the chambers contains the fluid intended to be ejected, the other chamber is a pressurization chamber, the pressurization of which can cause translational movement of the separating element and ejection of the fluid. The pressurization chamber includes a thimble capable of sealably separating the inside of the pressurization chamber from the side walls of the reservoir. Thus, a seal between two chambers is perfect and durable without degrading slidability of the piston.

Abstract: A portable or wheeled fire extinguishing apparatus which is operable by water or foam, comprising a pressure resistant extinguishing medium container, a pressurized gas bottle for pressurizing the extinguishing medium container for expelling the extinguishing medium, and an extinguishing medium gun which is connected to the extinguishing medium container by a pressure resistant hose, wherein additional pressurized gas can be introduced into the extinguishing medium supplied to the extinguishing medium gun.

Abstract: Methods and apparatus for passive non-electrical dual stage fire suppression according to various aspects of the present invention include detecting a fire with a first active fire suppressant unit and changing the status of a second fire suppressant unit from “stand-by” to “active” when the first fire suppressant unit releases a fire suppressant agent. After the first fire suppressant unit has released its fire suppressant agent, the second fire suppressant unit may detect a continued and/or a new fire and release a second fire suppressant agent in response to the detection.

Abstract: An extinguisher has a cylinder capable of containing a fire-extinguishing product, and means for releasing the fire-extinguishing product from the cylinder and comprising at least one compressed gas cartridge, at least two tanks, each capable of containing at least one additive product, and means for releasing at least one additive product from each of the at least two tanks and for mixing with the fire-extinguishing product during the release of the fire-extinguishing product. At least one of the tanks is removable relative to the extinguisher. A cartridge having a plurality of tanks is usable in the extinguisher.

Abstract: A combination of a liquid fire extinguishing composition including potassium salts or aluminum salts of an organic acid, resulting in a viscous liquid, is finely divided by a nozzle into droplets which may be applied to a fire or fuel therefor or form a cloud of droplets which settle onto such fire and/or fuel which is particularly effective for fighting fires where fuel is at least initially contained such as oil and grease fires in cooling utensils being heated on stoves. Propellant is contained and not entrained in the dispensed fire fighting composition to avoid at least spreading of the fuel beyond the containment.

Abstract: The present invention provides a fire extinguishing device including an upright standing hollow body. An air compressor pump is connected to the hollow body for providing pressurized air to the hollow body. At least one heat activated fluid release valve is connected to the hollow body. The present invention further provides a method of configuring a tree display.

Abstract: The present disclosure provides for an advantageous extinguisher or discharge assembly. In exemplary embodiments, the present disclosure provides for an improved hydro-pneumatic fire extinguisher or discharge assembly. More particularly, the present disclosure provides for an improved hydro-pneumatic fire extinguisher or discharge assembly that is configured and dimensioned to fire or release a fire fighting agent (e.g., a fluid and/or liquid based fire fighting agent) while the extinguisher/assembly is oriented in any position or angle relative to gravity.

Abstract: The present disclosure provides for an advantageous extinguisher or discharge assembly. In exemplary embodiments, the present disclosure provides for an improved hydro-pneumatic fire extinguisher or discharge assembly. More particularly, the present disclosure provides for an improved hydro-pneumatic fire extinguisher or discharge assembly that is configured and dimensioned to fire or release a fire fighting agent (e.g., a fluid and/or liquid based fire fighting agent) while the extinguisher/assembly is oriented in any position or angle relative to gravity.

Abstract: This invention is directed to a portable foaming apparatus for a handheld fire suppression system having a container holding a foaming agent, water and a pressurized gas, a foam generating assembly having a snorkel, a gas re-directional opening defined in the foam generating assembly allowing gas to enter the re-directional opening from the container; a nozzle in fluid communication with the gas re-directional opening and included in the foam generating assembly downstream of the snorkel so that gas entering the re-directional opening is inserted in the foam generating assembly downstream the snorkel; and, an outlet defined in the housing ejecting foam produced from the foaming agent and the gas when a foam nozzle attached to the foam generating assembly is actuated.

Abstract: Methods and apparatus for fire egress/escape comprising a first container for storing a first fluid, a second container for storing a propellant, a nozzle to mix and atomize material from the first and second containers for forming a mist to suppress flame by evaporation, and an activation mechanism to enable a user to release material in the first and second containers for generating the mist.

Abstract: A lightweight fire extinguisher is disclosed. In one embodiment, the fire extinguisher, which is portable, includes a press-source fluid container capable of retaining compressed air; extinguishant containers capable of retaining extinguishant; a pressure-source fluid tube connected to the pressure-source fluid container and the extinguishant containers, for leading the compressed air retained in the pressure-source container to the extinguishant containers; a pressure reducing valve intervening in the pressure-source fluid tube, for reducing pressure of the compressed air flowing down the pressure-source fluid tube; discharge device capable of discharging the extinguishant retained in the extinguishant containers; and an extinguishant tube connected to the extinguishant containers and the discharge device, for leading the extinguishant retained in the extinguishant containers to the discharge device.

Abstract: A protective device with a pressure tank (1) includes an elastic extinguishing agent balloon (3) filled with an extinguishing agent (23) and a propellant, where the elastic extinguishing agent balloon (3) borders onto at least one elastic component (32) and this elastic component is fluid permeable. The upper part of the elastic extinguishing agent balloon (3) is formed as a sealing ring. The device has the advantage that when it is used in mobile and stationary objects, where vibrations and other forces act on the extinguishing device, a high degree of operational safety of the extinguishing device can be assumed, that makes it possible to discharge almost 100 per cent of the extinguishing agent without any malfunctioning. The operation of the extinguishing device is also temperature independent so that no additional safety measures are required in the case of a change in the spatial attitude of the pressure tank.

Abstract: A tube-end device for fire extinguishment jets and sprays pressurized and fed water, seawater, or aqueous fire-extinguishing agent from a tube end. The tube-end device for fire extinguishment is provided with: an induction electrode unit disposed in an emission space side of a nozzle unit positioned inside the tube end; a water-side electrode unit disposed at a position of the interior of a tube main body in contact with fire-extinguishing water; a voltage applying device which applies an external electric field, which is generated by applying a voltage between the induction electrode unit and the water-side electrode unit, to the water, seawater, or fire-extinguishing agent in the process of jetting from the nozzle unit, electrically charges jetted particles, and emit the particles; and a battery which supplies power to the voltage applying device.

Abstract: The present invention relates to a hand-held aerosol fire suppression apparatus, comprising button (2), thermal insulating layer (3), jet nozzle (8), enclosure of apparatus (10), combustion chamber (11), rear fender (14) and rear cap (17), wherein the enclosure of apparatus (10) has an enclosure of cartridge (4) that accommodate a chemical agent (5) and an enclosure of cooling layer (6) that is filled with a cooling material (7), the combustion chamber (11) is installed between the enclosure of cartridge (4) and the enclosure of cooling layer (6), the thermal insulating layer (3) is arranged between the enclosure of apparatus (10) and the enclosure of cartridge (4), between the enclosure of apparatus (10) and the enclosure of cooling layer (6), and between the rear fender (14) and the chemical agent (5).

Abstract: A fire extinguisher (50, 50?, 50?) comprises a container (10, 10?) that holds a fire-extinguishing substance and that has a container jacket (12, 12?) closed at both ends, and a piston (20, 20?) which is axially displaceable in the container jacket and which separates a space (22, 22?) for fire-extinguishing substance from an expansion space (24, 24?) in the container. According to the invention, an inner compressed-gas chamber (26, 26?) provided in the container (10, 10?) is spatially separate from the expansion space and serves for controlled pressurizing of the expansion space (24, 24?). The piston (20, 20?) is arranged such that it can be displaced along the compressed-gas chamber (26, 26?).

Abstract: An apparatus to suppress a localized fire may include a pressurized tank of fire suppressant and a valve coupled to the tank. In case of a fire, a pneumatic fire sensor may open the valve to release the fire suppressant.

Abstract: One embodiment of the invention is a hand-held fire extinguisher including: a tube having an open outlet end, an outer surface, and an inner surface; a fire suppressant composition provided within the tube; a propellant source containing a propellant, having a propellant outlet, where the propellant outlet is distal from the open outlet end of the tube and from the fire suppressant composition, and where the propellant outlet is in fluid communication with the fire suppressant composition and the open outlet end of the tube; and an actuator for the propellant source. In such apparatus, actuation of the actuator allows propellant flow from the propellant outlet passing through the fire suppressant composition and out through the open outlet end of the tube.

Abstract: Improvements to a portable fire extinguisher where the improvements relate to a system where the owner of the extinguisher can service and maintain their fire protection. Systems in place today require the servicing of a third party. The service companies (third parties) are charged with maintaining the system. Further Improvements include an anti-bridging mechanism that is articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. The improvements further include a wall mounting bracket that reduces tampering with the extinguisher, an automatic fluffing motor and manual fluffing wheel with a chuck for use with a drill. These features extend the service intervals while maintaining the fire extinguisher in a ready condition. The fire extinguisher is construction of components that are interchangeable and provide equal operation for left and right handed people.

Abstract: A lightweight fire extinguisher is disclosed. In one embodiment, the fire extinguisher, which is portable, includes a press-source fluid container capable of retaining compressed air; extinguishant containers capable of retaining extinguishant; a pressure-source fluid tube connected to the pressure-source fluid container and the extinguishant containers, for leading the compressed air retained in the pressure-source container to the extinguishant containers; a pressure reducing valve intervening in the pressure-source fluid tube, for reducing pressure of the compressed air flowing down the pressure-source fluid tube; discharge device capable of discharging the extinguishant retained in the extinguishant containers; and an extinguishant tube connected to the extinguishant containers and the discharge device, for leading the extinguishant retained in the extinguishant containers to the discharge device.

Abstract: In one arrangement there is provided a method of charging a fluid vessel (10). The vessel (10) comprises a rigid outer container, an expandable bladder (8) within the outer container in fluid communication with a release valve (9) of the fluid vessel (10). A cavity separates the rigid outer container and the bladder and the method comprises the steps of providing a first fluid (5a) to the cavity, for providing external pressure to the expandable bladder (8), and subsequently providing a second fluid (5) to the bladder (8) prior to use of the fluid vessel (10).

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 distribution system includes a composite reservoir containing pressure-configurable orifices.

Abstract: The present invention provides a fire extinguisher. The fire extinguisher has two cylindrical bodies that can house a plurality of gas cylinders; a plurality of cylinder holders; a plurality of needle tubes that can break sealing plates sealing the gas cylinders; and a plurality of needle tube holders. Either the cylinder holders or the needle tube holders can move at the same time to break the sealing plates of the gas cylinders about the same time.

Abstract: An onboard fire suppression system for an automotive vehicle includes at least one reservoir containing a fire suppressant agent and a propellant, operatively associated with the reservoir, for expelling the fire suppressant agent from the reservoir. A distribution system for receiving fire suppressant agent expelled from said reservoir includes at least one feeder conduit which is connected with the reservoir by means of a quick connect coupler. The quick connect coupler facilitates assembly and servicing of the fire suppression system.

Abstract: Extinguishing-medium container includes a tubular body (2) which can be coupled together with a first and a second end piece (5, 6), which second end piece (6) has at least one outlet duct (33) for ejection of extinguishing medium (26) by a propulsion member (30) The extinguishing-medium container (1) can be charged with extinguishing medium (26) in the whole of its inner space bounded by the inner side (71) of the tubular body (2), the first and second end piece (5, 6) and a separation element (29), which separation element (29) is, in a charged state, arranged closely adjacent to the first end piece (5).

Abstract: Improvements to a portable fire extinguisher where the improvements relate to a system where the owner of the extinguisher can service and maintain their fire protection. Systems in place today require the servicing of a third party. The service companies (third parties) are charged with maintaining the system. Further Improvements include an anti-bridging mechanism that is articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. An external pressurized canister allows easier servicing or replacement of the pressurized canister as well as the ability to maintain the chamber in an un-pressurized condition, allowing non-HASMAT shipping. These features extend the service intervals while maintaining the fire extinguisher in a ready condition. The fire extinguisher is construction of components that are interchangeable and provide equal operation for left and right handed people.

Abstract: A portable fire extinguishing device capable of suppressing a fire in a room or other enclosed area comprises a housing containing a pyrotechnic composition and a delay fuze. Upon initiation, the pyrotechnic composition burns and generates combustion byproducts that include an inorganic halogen compound that is dispersed as a aerosol of fine particles, or a gas that rapidly condenses into an aerosol of fine particles, the particle size of which is so small that the free-fall velocity of the particles is less than the average air currents in the room. Accordingly, the fire suppression aerosol remains suspended for several hours to act as a fire suppressant and because of its persistence will seek out and suppress even hidden fires.

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 sensor system and controller determine not only the magnitude of an impact upon the vehicle, but also track subsequent motion of the vehicle, as well as the time which has elapsed since an impact, so as to decide if and when the fire suppressant agent should be dispersed. Alternatively, the fire suppressant agent may be dispersed following activation of a manual switch.

Abstract: A fire extinguishing agent contains at least one compound selected from the group consisting of an alkali hydrogencarbonate and an alkali carbonate, the alkali hydrogencarbonate being thermally decomposed to generate carbon dioxide and an alkali carbonate, a metal oxide that reacts with the alkali carbonate to generate carbon dioxide, and a hydrophobic binder.

Abstract: A method and an apparatus for preventing freezing at the outlet of a fire extinguisher are disclosed. Moisture in the fire extinguisher fluid is removed by contacting the fluid in the fire extinguisher bottle with a desiccant such as molecular sieve 3A. After the fluid in the extinguisher has been in contact with the desiccant for a week, the moisture level is about 5 ppm, well below the 40 ppm which causes freezeup at the outlet. The desiccant is preferably placed inside a metal screen tube having metal wire loops extending from the sides of the mesh tube. The wire loops keep the mesh tube away from the outlet so that flow restriction will not occur. The wire loops also protect the desiccant from being damaged when the fire extinguisher is discharged and provide a handle which can be used to pull the metal screen tube out of the bottle during refurbishment.

Abstract: Improvements to a portable fire extinguisher are disclosed. The improvements allow for frequent and simpler untrained and automatic self servicing of a fire extinguisher. The improvements include an anti-bridging mechanism that can be articulated from the exterior of the chamber to fluff, mix or stir the powder within the chamber to keep it in a liquefied state. Additional improvements include a larger opening to more quickly fill and inspect the powder within the chamber. Another improvement includes the use of a CO2 canister located external to the chamber to allow easier servicing or replacement of just the CO2 canister as well as the ability to maintain the chamber in an un-pressurized condition, allows for non-HASMAT shipping. These features will extend the service intervals while maintaining the fire extinguisher in a ready condition.

Abstract: A fire extinguishing device and associated methods. The device is adapted to be positioned in proximity to a fire and operable in response to heat output by the fire. The device includes a first reservoir, containing a fluid, adapted to receive the heat from the fire and thereby exert a pressure and a second reservoir, communicating with the first reservoir, containing a fire fighting material. The device further includes a pressure-sensitive membrane, forming a pressure-sensitive barrier between the first reservoir and the second reservoir, adapted to rupture upon a predetermined pressure being attained in the first reservoir and thereby releasing a steam into the second reservoir. The steam expels the fire fighting material onto the fire. Additionally disclosed are methods for using the device to control and extinguish fires.

Abstract: A vehicular and marine fire suppression system for detecting and suppressing and quenching fires. The vehicular and marine fire suppression system including a first canister, a second canister and an actuation mechanism. The first canister houses a fire suppressing agent and is in fluid communication with a manifold assembly for providing delivery of the fire suppression agent from the first canister to the area to be protected by the fire suppression system. The second canister contains a pressurizing/agitation agent and is in fluid communication with the first canister via a valved actuator assembly. The second canister includes a threaded neck defining an outlet and a pierceable seal disposed about the outlet. The actuator assembly includes a piercing member for rupturing the pierceable seal of the second canister. The piercing member is in active engagement with a piston carried by a squib.

Abstract: A fire extinguisher includes a gas generator for pressurizing a suppressant. The generator includes an ignition cord within a flexible tube extending within an interior of an extinguisher bottle. Advantageously, there is additional generant between the tube and the ignition cord. The extinguisher may be manufactured as a retrofit of an existing hand-held supercharged extinguisher.

Abstract: A fluid delivery device for supplying fluids, particularly automotive fluids supplied to fluid reservoirs. To attain this, a vessel configured to hold a liquid includes a pressurized gas inlet configured to receive gas into the vessel through a passageway in an integral handle upon actuation of a handle-mounted trigger. Liquid is displaced from the vessel by the gas. In an embodiment, the trigger includes a stem having a solid portion and a hollow portion, and actuation of the trigger aligns the hollow portion with the passageway such that gas may flow. Liquid flows through a hose extending from the vessel.

Abstract: A method and apparatus for suppressing a fire utilizing non-azide solid gas propellant generation to produce and transport a suitable gas for suppressing a fire in a normally occupied area. The nitrogen gas produced by the solid propellant gas generation is optionally treated to remove undesirable elements such as water and/or carbon dioxide from the product gas prior to the delivery of the product gas to the protected hazard area.

Abstract: A method and an apparatus for preventing freezing at the outlet of a fire extinguisher are disclosed. Moisture in the fire extinguisher fluid is removed by contacting the fluid in the fire extinguisher bottle with a desiccant such as molecular sieve 3A. After the fluid in the extinguisher has been in contact with the desiccant for a week, the moisture level is about 5 ppm, well below the 40 ppm which causes freezeup at the outlet. The desiccant is preferably placed inside a metal screen tube having metal wire loops extending from the sides of the mesh tube. The wire loops keep the mesh tube away from the outlet so that flow restriction will not occur. The wire loops also protect the desiccant from being damaged when the fire extinguisher is discharged and provide a handle which can be used to pull the metal screen tube out of the bottle during refurbishment.

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 fire extinguisher includes a tank and a gas generator breech connected to the tank. The gas generator breech is provided with a hermetically sealed gas generator cartridge. The hermetically sealed gas generator cartridge avoids the need to have a release poppet or burst shims on the gas generator breech. The enclosed space that contains combustion gas pressure is provided by the gas generator cartridge itself and not the gas generator breech. The gas generator cartridge is made from a container that can be the precursor to a beverage can used for carbonated beverages. The beverage can may come in a thickness and material of construction that makes it a suitable, cost-effective container for the gas generator cartridge. However, other containers besides precursors of beverage cans can be used.