Abstract: A pressure relief device including a gas-permeable body to which a membrane adheres that is preferably impermeable to moisture. The membrane can be a rubber membrane that is formed by applying liquid rubber to the pressure relief body and, optionally, a component which supports the liquid rubber and surrounds the pressure relief body.

Abstract: A battery module includes a housing that defines an inner volume and includes an airflow path from an aperture formed in a first end member of the housing, through the inner volume, to an aperture formed in a second end member of the housing; power cells mounted in the inner volume of the housing, where each of the power cells includes a vent member; and a barrier that at least partially interrupts a fluid pathway that extends between the vent members and at least one of the aperture formed in the first end member or the aperture formed in the second end member of the housing. The power cells are directionally mounted in the volume such that the vent members face an offset direction relative to at least one of the aperture formed in the first end member or the aperture formed in the second end member of the housing.

Abstract: A vented module includes a housing portion having a drainage side and a drainage port within the drainage side. The module further includes a flame arrestor including a first surface having a fluid inlet, a second surface having at least one fluid outlet, a labyrinth channel extending from the fluid inlet to the fluid outlet, and at least one mesh screen disposed within the labyrinth channel. The flame arrestor is attached to the housing portion such that the drainage port is aligned with the fluid inlet.

Abstract: The present invention includes systems, assemblies, and methodologies for inhibiting combustion within fluid containers, enhancing the safety of such containers. One aspect includes a novel base module from which assemblies of varying shape and size, suitable for disposing within a variety of different fluid containers, are created. In one embodiment, the base module is made from an expanded mesh which is rolled in a novel cylindrical configuration according to a novel methodology. In another embodiment, the base module may be combined with other base modules to form an assembly.

Abstract: A flameless cooking apparatus for use with liquid fuels and for indoor or outdoor use under field operations. The burner exhibits low CO and hydrocarbon emissions and meets standards for burner thermal efficiency when used with JP-8 fuel. The apparatus employs a catalytic burner having among its parts (i) a combustion catalyst; (ii) a conductive surface, e.g., cooking surface; and (iii) in between the catalyst and the conductive surface and in direct physical contact with both surfaces, a heat spreader for conductively transferring heat of combustion from the catalyst to the conductive surface. Also claimed are a method of heat flux and a method of cooking.

Abstract: A flame arrester 10, the flame arrester 10 having a housing 2 in which there is provided a flame arrester element 3 and into which extends a conduit 1, a portion of the conduit being at least partially surrounded by the flame arrester element 3 and wherein the conduit 1 has a principal flow axis extending along the conduit for flow of gas into or out of the flame arrester 10 and the flame arrester element 3 has a principal flow axis for flow of gas out of or in to the flame arrester 10, the principal flow axis along said portion and the principal flow axis through the flame arrester element 3 extending in opposite directions and wherein the conduit 1 has a cross sectional area A and, at a working surface, the flame arrester element 3 has a cross sectional area of A or above.

Abstract: A flame mitigation device configured to be located proximate a main container opening of a fuel container having a fuel-receiving chamber, with the main container opening permitting liquid fuel to flow into and out of the fuel-receiving chamber. The flame mitigation device comprises a sidewall defining a plurality of perforations through which the liquid fuel can flow to dispense such liquid fuel from the fuel-receiving chamber when the flame mitigation device is installed within the fuel container. At least a portion of the perforations defined in the sidewall are downwardly sloping perforations, with the downward angle of the downwardly sloping perforations being at least 1 degree below horizontal. And at least 20 percent of the total open area defined by all of said perforations is attributable to downwardly sloping perforations.

Abstract: An arc-resistant electrical enclosure includes an arresting system that permits forced-air cooling of the interior region to occur during ordinary operation of the enclosure while resisting the flow of hot gases, plasma, and flames to the exterior of the electrical enclosure in an arc event or other event. The arresting system advantageously includes a louver apparatus and a cover apparatus that work in conjunction to resist the flow of gases, plasma, and flames to the exterior of the cabinet in an arc event. The louver apparatus includes louvers that can be moved from an open state to a closed state responsive to a predetermined fluid pressure impinging on the louvers. The cover apparatus includes a fire blocking panel that permits fluid flow therethrough during ordinary operation but which, responsive to a flame, initiates a transformation from one state to another state wherein the openings resist the communication of flames therethrough.

Abstract: A flame cell of a flame arrestor may include a body of a first material having a first end, a second end, and a plurality of channels formed in the body and extending from the first end to the second end of the body. The flame cell may also include an element of a second material coupled to the body, the second material being different from the first material. The element may be configured to draw heat away from fluid flowing through the plurality of channels.

Abstract: A utility enclosure assembly includes a box and a lid. The box has a plurality of side walls each having an upper ledge, a hollow center opening and at least one receiving latching mechanism associated with a ledge in at least one of the side walls. The lid rests on the ledges of the side walls and has at least one attached latching mechanism. The at least one attached latching mechanism is provided to operatively engage a respective one of the at least one receiving latching mechanism.

Abstract: A combined filter and spout device for use with a paint barrel includes a hollow body having a pouring end, a straining end and a barrel opening engaging portion therebetween; the engaging portion sized and otherwise dimensioned to be friction fit into the liquid dispensing opening of the barrel; the pouring end having a shape which facilitates the outflow of liquid from the barrel; and the straining end having a convex surface enclosing the hollow body; the convex surface having a plurality of perforations sized and otherwise dimensioned to permit liquid to pass therethrough.

Abstract: A device for limiting consequences of a fire, in a room, including a reservoir including a vessel containing a liquid, the reservoir including one or more chambers in communication with a storage cell and one or more other chambers. The reservoir also includes at least a first overflow tank and at least a second overflow tank, both integral, placed on either side of the reservoir, each tank configured to receive the liquid when the liquid exceeds a predetermined given height in the vessel.

Abstract: A volatile liquid storage container has combustion resistance properties from a flexible sock or tube constructed of fire resistant fibers coupled to a neck of the storage container to prevent flame flash-back into the storage container. The storage container defines an enclosed volume having an orifice in the container material leading to a neck for pouring and filling the enclosed volume for exchanging the contents therein. The tube is elongated and surrounds a circumference of the orifice for engaging any ignition source entering through the orifice. The flexible nature of the tube or sock allows it to extend to an opposed interior surface of the enclosed volume, and ensures that the tube or sock is immersed in the fluid for encircling any ignition path to the volatile liquid without interfering with an ability to pour or refill the container.

Abstract: A system is described herein. The system can include an explosion-proof enclosure having an interior comprising a first region and a second region. The system can also include a heat-generating component positioned within the second region of the explosion-proof enclosure. The system can further include an air moving device positioned within the first region of the explosion-proof enclosure. The air moving device can draw a first portion of intake air from outside the explosion-proof enclosure. The air moving device can also pass the first portion of the intake air over the heat-generating component to generate first exhaust air, where the first portion of the intake air cools the heat-generating component. The air moving device can further remove the first exhaust air from the interior of the explosion-proof enclosure.

Abstract: A manifold within an explosion-proof enclosure is described herein. The manifold can include an inlet duct coupled to an air moving device, where the inlet duct can receive exhaust air from the air moving device. The manifold can further include an outlet duct that includes a perimeter and at least one channel, where the outlet duct can send the exhaust air outside the explosion-proof enclosure, where the perimeter of the outlet duct is coupled to a first portion of an inner surface of an outer wall of the explosion-proof enclosure, and where the first portion of the inner surface includes at least one aperture that traverses the outer wall. The manifold can also include a body that includes a cavity, where the body couples the inlet duct to the at least one channel, and where the exhaust air flows from the inlet duct through the cavity to the outlet duct.

Abstract: A device inhibiting propagation of explosions using a pipe having an inlet and an outlet. The inlet is connectable to a container to be protected or to a conduit to be protected. The device further includes a mechanism for building up a pressure difference so that a higher pressure is generated in a first region of the pipe located upstream of the outlet in the direction of the inlet and a lower pressure is generated in a second region located upstream of the first region in the direction of the inlet.

Abstract: In a fuel tank for a vehicle in which a lower opening part of a fuel supply guide tube is covered with a flame arrester, to enable a fuel to be extracted via a fuel supply port. In the fuel tank for a vehicle provided with a fuel supply port device, the fuel supply port device includes an insertion hole through which the inside of the fuel supply port device and the inside of a tank body communicate with each other and through which a tool for extracting the fuel is inserted, and an open-close lid for opening and closing the insertion hole.

Abstract: An installation for draining liquid away from an aircraft engine compartment. Said drainage installation comprises a collector for collecting said liquid and provided with an opening putting the collector into fluid flow communication with an upstream inlet of a drainage line that is open to the outside via a downstream outlet. The drainage line includes an obstacle to the flow of the liquid that allows the liquid to flow towards the downstream outlet of the drainage line when there is a predefined quantity of liquid retained by said obstacle. The opening of the collector is provided with a firebreak grille arranged as a cap extending in elevation over the opening and including a plurality of orifices distributed at the periphery of the firebreak grille going from its base towards its top.

Abstract: A breather assembly is disclosed for use with a fluid tank. The breather assembly may include a mounting collar having a first end and an opposing second end. The first end of the mounting collar may be connected to a distal end of a fluid tank spout. The breather assembly may also include a breather insert connected to the mounting collar. The breather insert may have a perforated screen extending a distance past a base end of the fluid tank spout. The breather assembly may further include a breather cap having a first end and an opposing second end. The first end of the breather cap may be connected to the breather insert. The breather cap may also have a passage in common with a hollow center of the mounting collar.

Abstract: Provided is a combustion controller for a combustible gas of a pressurized water reactor nuclear power plant, and more particularly, to a combustion controller for a combustible gas installed in a rear end of a filtered vent system outside a containment vessel or an external chimney, configured to convert a combustible gas such as hydrogen, carbon monoxide, or the like, into steam, carbon dioxide, or the like, and simultaneously, operate by itself with no external power supply. Accordingly, the combustion controller for a combustible gas can perform stable combustion control with no probability of explosion of hydrogen through a recombining reaction of the combustible gas, prevent discharge of carbon monoxide, which is a toxic gas, and prevent backward flow of the flame through the quenching mesh.

Abstract: A pressure release device for a protective housing for flameproof enclosure of electrical operating means. The device includes an accommodating body (18) having a passage (22), and a porous body (24) arranged in the passage (22). The porous body (24) is elastically deformed by means of an interference fit in the passage (22), and thus, reliably supported therein free of flame or spark exiting gaps.

Abstract: A portable fuel container configured to prevent liquid fuel contained therein from being entirely emptied from the container. The amount of liquid fuel retained in the container can be sufficient to maintain a fuel-to-air ratio in the container at a fuel-rich level that prevents combustion within the container if the container were to be placed near an ignition source or if an ignition source were to somehow enter the container. The container can also include other safety features such as, for example, a flash suppressor located at the fill opening, an extra wide fill opening, and/or an easily controllable dispensing spout. When a flash suppressor is employed, the perforations in the flash suppressor can be configured to retain fuel therein after fuel has been dispensed from the container and the flash suppressor is no longer submerged in fuel.

Abstract: With a device (1) for equalizing pressure surges in cases of possible dust or gas explosions in closed systems, such as silos, pipelines or the like, comprising a hinged cover (3) which can be pivoted on an outlet connection or a closing edge (2) and has a smooth outer surface (12) and comprising a deflecting plate (8) on the outlet connection or on the closing edge (2) for the cover (3) to strike against in the event of an explosion, it is intended to achieve not only cost-effective production but also in particular a significant weight saving of the hinged cover, quick changing of the cover in the case of damage, or quick fitting of the cover in the first instance, and an improvement in the protective effect of the system.

Abstract: A vehicular fuel tank fuel filler orifice device that is provided with a fuel filler orifice in an upper wall of a vehicular fuel tank that stores ethanol fuel for an engine and a fuel filler guide tube extending from the fuel filler orifice to the interior of the fuel tank. A flame arrestor made of a metal mesh with a larger diameter than that of the fuel filler guide tube is mounted on the fuel filler guide tube. The flame arrestor covers a lower opening of the fuel filler guide tube for allowing a flow of the fuel but preventing the entrance of a flame. Using a flame arrestor, not only prevents a flame from entering a fuel tank from a fuel filler orifice but also smoothly carries out an exchange of fuel and air in the flame arrestor when filling with fuel, thus speeding the filling with fuel.

Abstract: A protective housing designed as a pressure proof capsule has a pressure relief valve which comprises a porous body 23 and a pore closure 31 about its perimeter for preventing the transition of a flame about an edge of the porous body. Alternative embodiments of pore closures 31 are disclosed, including a soft metal ring about an edge of the porous body that is depressed, such as by a pressure ring, into a gapless imbedding relation to the porous body. An edge region of the porous body can be modified by jacketing materials such as synthetic materials, metals and the like for creating a form fitting bond with the body of the protective housing.

Abstract: A fuel tank structure including a fuel tank, a fuel filler port device formed in a cylindrical shape and arranged in the fuel tank, and a flame arrester arranged in the fuel filler port device and disposed inside the fuel tank. A fuel bleeding opening is formed in a peripheral wall part of the fuel filler port device and an arrester peripheral wall part. A cylindrical ring disposed so as to urge itself against the peripheral wall part and block the fuel bleeding opening.

Abstract: The invention provides a flame trap cartridge 154 for use in a flame arrestor 50, the flame trap cartridge comprising a casing 160, and a foam component 170 having two opposite ends and at least one side edge, wherein the foam component is at least partially encased around at least one side edge by the casing. The invention also provides a flame arrestor, a method of preventing flame propagation into a fuel tanks and a method of operating an aircraft.

Abstract: A detonation flame arrestor including an outer cylinder, an inner cylinder, transition point/attenuation matrix and tortuous path media. The inner cylinder is secured to a canister flange and positioned inside the outer cylinder secured to the canister flange, altogether forming a canister. The torturous path media is positioned in the canister between the inner cylinder and the outer cylinder to to provide turbulence and a large surface area which acts as a heat sink to extinguish a flame. Both the outer cylinder and the inner cylinder include a transition point/attenuation matrix which forms their respective cylindrical circumferences. Helical or parallel wire or rings create the transition point/attenuation matrix which attenuates and creates turbulence as the first stage of quenching a flame front.

Abstract: A fuel tank structure including a fuel tank, a fuel filler port device formed in a cylindrical shape and arranged in the fuel tank, and a flame arrester arranged in the fuel filler port device and disposed inside the fuel tank. A fuel bleeding opening is formed in a peripheral wall part of the fuel filler port device and an arrester peripheral wall part. A cylindrical ring disposed so as to urge itself against the peripheral wall part and block the fuel bleeding opening.

Abstract: An electronic enclosure includes a housing having a plurality of walls that define an interior portion. A flame arrestor is mounted to one of the plurality of walls of the housing. The flame arrestor includes a mechanical check valve. The mechanical check valve is configured and disposed to allow a fluid to exit the interior portion of the housing and prevent fluid from entering the interior portion of the housing.

Abstract: An aircraft fuel tank system is disclosed in which a vent tank is provided with an ullage vent for use in combination with an eternal flamer barrier means during a refuelling process.

Abstract: An aircraft fuel tank system is disclosed in which a vent tank is provided with an ullage vent for use in combination with an eternal flamer barrier means during a refuelling process.

Abstract: An aircraft fuel tank system is disclosed in which a vent tank is provided with a compact vent pipe comprising one or more built-in flame barrier elements providing high liquid fuel outflow rate.

Abstract: A vehicular fuel tank fuel filler orifice device that is provided with a fuel filler orifice (15a) in an upper wall (3a) of a vehicular fuel tank (3) that stores ethanol fuel as fuel for an engine and a fuel filler guide tube (15) extending from the fuel filler orifice (15a) to the interior of the fuel tank (3), wherein mounted on the fuel filler guide tube (15) is a flame arrestor (21) that is made of a metal mesh and has a larger diameter than that of the fuel filler guide tube (15), the flame arrestor (21) covering a lower opening of the fuel filler guide tube (15) and allowing flow of the fuel but preventing the entrance of flame It is thereby possible, using a flame arrestor, not only to prevent a flame from entering a fuel tank from a fuel filler orifice but also to smoothly carry out exchange of fuel and air in the flame arrestor when filling with fuel, thus speeding the filling with fuel.

Abstract: A vehicular fuel tank fuel filler orifice device that is provided with a fuel filler orifice (15a) in an upper wall (3a) of a vehicular fuel tank (3) that stores ethanol fuel as fuel for an engine and a fuel filler guide tube (15) extending from the fuel filler orifice (15a) to the interior of a fuel tank (3) and receiving a fuel filler gun (G), wherein mounted on the fuel filler guide tube (15) are a flame arrestor (21) and a gun stopper (20), the flame arrestor (21) covering a lower opening of the fuel filler guide tube (15) and allowing flow of the fuel but preventing the entrance of flame, and the gun stopper (20) preventing abutment of the fuel filler gun (G) inserted into the fuel filler guide tube (15) against the flame arrestor (21). This enables damage to a flame arrestor by a fuel filler gun inserted into a fuel filler orifice to be prevented without using a long fuel filler guide tube.

Abstract: A method for attenuating deflagration pressure produced by combustion of combustible gas in a defined region of a process vessel. The method generally comprises selecting and placing attenuating material in the defined region of the process vessel, wherein the selected attenuating material maintains its physical shape under the operating conditions. The attenuating material should occupy at least 20% of the volume of the defined region of the process vessel. Use of the inventive method may be beneficially applied for the safe operation of oxidation reactors with flammable, high hydrocarbon concentration feeds in order to attain increased productivity.

Abstract: This invention relates to an explosion pressure relief device with a wall and a framework fixing the wall. In the case of an explosion in a container to which an explosion pressure relief device is attached, such explosion pressure relief device serves to allow the pressure wave to escape at best greatly weakened.

Abstract: A dry safety device for an inflammable gas comprises a case main body having a gas passage which terminates at one end in a primary side open port connectable to a source of inflammable gas and terminates at the other end in a secondary side open port connectable to a gas-fired appliance. A spindle undergoes sliding movement in the case main body between an open position for opening the gas passage and a closed position for closing the gas passage, and a spindle spring normally urges the spindle to the open position and permits the spindle to move to the closed position in response to a counter-flow pressure exerted on the spindle by a counter flow of inflammable gas directed from the secondary side open port to the primary side open port.

Abstract: A detonation flame arrestor including an outer cylinder, an inner cylinder, and fill media. The outer cylinder and inner cylinder are secured to a canister flange on one end and include a domed face (cap) on the other end. On assembly, the inner cylinder secured to the canister flange is positioned inside the outer cylinder secured to the canister flange, altogether forming a canister. The fill media is inserted in the canister between the inner cylinder and the outer cylinder. Both the outer cylinder and the inner cylinder include a tapered spiral wound wire screen which forms their respective cylindrical circumferences. Contaminates are constrained between adjacent windings of the tapered wire screen.

Abstract: A flash arrestor applicable to suppress explosions in gas lines generally, but specifically appropriate for suppressing explosions of pyrophoric gases, particularly silane in connection with integrated circuit manufacturing, has two identical flash suppression assemblies that are interconnected and act bidirectionally so as to suppress explosions occurring on either side of the apparatus. The positioning of a poppet relative to a poppet seat can be set manually into “open,” “closed” and “armed” positions, the latter indicating that the apparatus has been configured so as to intercept automatically any explosion that is transmitted to it through a gas line so as to yield a valve “closed” configuration, and that closed position can then be locked in manually.

Abstract: An explosion relief valve for a confined space, more particularly for the crankcase of an internal combustion engine, includes a seat (1) which may be fitted into a boundary wall (3) of the space to be protected, a spring-loaded closure plate (4) cooperating with the valve seat, at least one flame barrier (9) having low pressure resistance in the gas path leading through the valve, preferably consisting of sheet-metal strips stacked one above another transversely to the throughflow direction of the gas, which sheet-metal strips are provided preferably at least over part of their width with irregular corrugations, and at least one other perforated wall (11, 12) in the gas path of expanded metal.

Abstract: A detonation safety device having a flame-arresting device positioned in a housing. A pipe extends into the housing and proximate to the flame arresting device. In order to render a detonation front traveling in a pipe harmless, the detonation front is conveyed near the flame-arresting device. The flame-arresting device includes a diameter larger than the pipe and the detonation front such that the detonation front impinges only on a partial surface of the flame-arresting device. The detonation front is expanded in front of the arresting device so as to create a deflagration, which then impinges on the outer cross-section of the flame arresting device.