Abstract: An igniter holding structure includes, an igniter provided with an ignition portion and a conductive pin, a first resin portion provided between the igniter and an attachment portion and holds the igniter such that the ignition portion and a distal end of the conductive pin are located opposite each other, and a second resin portion provided in a circumferential wall portion of the attachment portion and forming a connector insertion portion on an inner side of the circumferential wall portion, the connector insertion portion being a space into which a connector connected to the conductive pin can be inserted and the second resin portion being provided separated from the first resin portion on the inner side of the circumferential wall portion in a manner that an exposed surface, which is made of metal and exposed to the connector insertion portion, is formed in the circumferential wall portion.

Abstract: A solid-propellant gas generator assembly may comprise a bulkhead having an orifice disposed in a housing. The bulkhead may be disposed between a first end and a second end of the housing. The bulkhead and the first end may define a propellant cavity. The bulkhead and the second end may define a pressure chamber. A fast burning solid-propellant may be disposed in the propellant cavity. The solid-propellant gas generator assembly may be configured to replace a slow burning solid-propellant gas generator system in a solid-propellent gas generator system.

Abstract: Embodiments of the present disclosure relate generally to systems and methods for controlling the temperature of inflatable evacuation systems. Specific examples provide a system that heats at least one portion of an inflation system of the evacuation system in order to regulate the temperature of the inflation gas.

Abstract: A gas generator includes an igniter, a cup-shaped member, and a fixing member. The cup-shaped member accommodating an enhancer agent bursts or melts at the time of activation. The fixing member fixing a filter does not burst and melt even at the time of activation. Ra and Ha satisfy a condition of Ra/Ha 1.00 where Ra represents an inner diameter of a sidewall portion of the cup-shaped member and Ha represents a distance between a top wall portion of the cup-shaped member and the igniter. The sidewall portion includes a first region surrounded by a partition wall portion of the fixing member and a second region not surrounded by the partition wall portion. The partition wall portion has an end portion arranged closer to a top plate portion than the igniter. A gas generating agent is arranged to face the top wall portion, the second region, and the partition wall portion.

Abstract: A propellant cage (10) for a tubular inflator (100), especially for a tubular inflator (100) of an airbag module, for forming a propellant chamber (14) and a flow passage (15) of the tubular inflator (100). The propellant cage (10) is in the form of a propellant cage spiral spring (11) having a gas inlet-side end (12) and a gas outlet-side end (13), the gas inlet-side end (12) having a smaller cross-section than the gas outlet-side end (13).

Abstract: An initiator with fuse device for an automatic self-contained fire suppressor and method are provided herein. Stovetop fires are a well-known residential and commercial hazard. An initiator with fuse device provides a reliable activation of an automatic stovetop fire suppressor. A device and method which provides a secure and robust attachment of an initiator to a fire suppressor, while reducing required component parts, manufacturing time, and labor, is provided herein. An initiator cup with integral cylindrical extension affords a thermoform attachment of the cup to the fire suppressor container while providing a secure mechanical attachment of the fuse to the initiator cup.

Abstract: A primer structure is provided for holding a deposited ignitable material, and for holding the ignitable material within a firearm cartridge or within another munition. The primer includes a disk and a retaining ring. Ignitable material is deposited on a surface of the disk. The retaining ring is positioned in front of the disk. The retaining ring includes angled passageways for reaction products to travel from the ignitable material to the propellant. The forwardmost surface of the retaining ring, as well as the angle of the passageways, dissipate pressure that would otherwise be borne by the disk. Both the disk and retaining ring include angled or stepped surfaces to resist movement under pressure.

Abstract: A gas generator includes a housing, a partition member which divides a space in the housing into a combustion chamber where a gas generating agent is accommodated and a filter chamber where a filter is accommodated, and a sealed container which externally seals the gas generating agent. The filter has a hollow portion which reaches an axial end surface located on a side of the combustion chamber. The sealed container is made of a member relatively low in mechanical strength so as to burst or melt as a result of burning of the gas generating agent. The partition member is made of a member relatively high in mechanical strength such that only a portion opposed to the hollow portion bursts as a result of burning of the gas generating agent to provide a communication hole which allows communication between the combustion chamber and the filter chamber with each other.

Abstract: An ignition device includes an igniter fixed to an igniter collar, a first cup member filled with a gas generating component therein, and a second cup member. The first cup member covers the igniter collar to enclose a portion including an ignition portion of the igniter. The second cup member covers the igniter collar to enclose the first cup member. A gap is formed between an outer surface of the first cup member and an inner surface of the second cup member to function as a heat insulating layer. The first cup member has a first opening, and the second cup member has a second opening. At least one of the first opening and the second opening is closed before actuation and is opened only when gas is generated from the gas generating component.

Abstract: A multi-barrel mortar launcher with an array of barrels and a fire control mechanism, where the array is configured to fire one mortar round from each barrel with substantially the same time-on-target in an impact area having an array of blast radii corresponding to the array of barrels.

Abstract: A gas generator includes at least one pyrotechnic substance, at least one subassembly formed at least of a first component and a second component, and at least one third component fixed to at least one of the first component and of the second component. The this component and one of the first component and of the second component each comprise an indexing interface arranged to temporarily block at least two degrees of freedom between the third component of the one of the first component and of the second component.

Abstract: An energetic ignition arrangement may comprise a pressure vessel arrangement, comprising a pressure vessel, and an ignition system arrangement. The ignition system arrangement may comprise an ignitor housing coupled to the pressure vessel and defining a sealing aperture, a seal disposed in the sealing aperture, and an electric match extending through the ignitor housing, wherein at least the ignitor housing and the pressure vessel are reusable after the energetic ignition arrangement has been employed in an ignition event.

Abstract: A cartridge casing comprising a casing tube formed substantially of metal with a closed end and an open end. The casing tube bounds at least part of a head cap entered into the open end of the tube. The head cap is fixed relative to the tube. An end wall defines the closed end opposite the head cap end of the cartridge. The end wall comprises a weakened region.

Abstract: The present invention provides an igniter assembly in which reliability in operation is enhanced. An igniter assembly includes an igniter main body, a resin portion enclosing a periphery of the igniter main body, a metallic collar being arranged on a periphery of the resin portion and integrated with the resin portion, a cup-like shaped igniter housing filled therein with a gas generating agent or a transfer charge. The metallic collar includes a combination of a cylindrical collar and an annular collar, and the cup-like shaped igniter housing abuts against a portion with a reduced diameter on the side of a first end portion of the cylindrical collar, thereby being fixed from the outside.

Abstract: The present invention provides a gas generator in which short-passing of combustion gas is prevented. A cylindrical filter 30 including a first annular end surface 32 abutted against a top plate 12 and a second annular end surface 33 abutted against a bottom plate 21 is disposed inside a housing 10. A corner portion 75 formed by a bottom surface 71 and an outer circumferential wall 74 of a support member 70 is abutted against an abutting portion between the second annular end surface 33 and the bottom plate 21 to prevent the short-passing of the combustion gas from this portion.

Abstract: An oxygen generator comprising a housing and a chemical core within the housing, the chemical core being capable on ignition of producing oxygen by chemical reaction. An ignition apparatus within the housing is for igniting the chemical core, and a collection apparatus within the housing collects oxygen produced by the chemical core. The collection apparatus comprises a cooling chamber having an inlet through which oxygen produced by the chemical core enters into the cooling chamber, and an outlet through which oxygen in the cooling chamber leaves the cooling chamber. The interior of the cooling chamber has at least one wall arranged in the path of oxygen flowing from the inlet to the outlet.

Abstract: A gas generation system for generating gases, such as for use as or as part of a rocket motor in propelling a projectile, includes two or more propellant charges and electrically operated propellant initiators operatively coupled to respective of the propellant charges, to initiate combustion in the propellant charges, wherein the propellant charges are operatively isolated from one another such that the propellant charges can be individually initiated and are not ignited due to gases generated from other of the propellant charges being combusted.

Abstract: A filter for a pyrotechnical gas generator includes a filtering material and a protection screen. The protection screen forms at least one sealed loop arranged so as to surround at least a part of a charge of propergol of the pyrotechnical gas generator in such a manner as to protect this at least one part of the filtering material from a pressure wave from the ignition of the propergol charge.

Abstract: A pilot-operated solenoid valve includes a pilot valve unit having a fixed core and a movable core, and a passage block formed with a valve seat which a diaphragm valve element comes into contact or separates from. The pilot valve unit includes an NO port, a common port, and an NC port. The passage block is formed with an inlet port, an outlet port, a back chamber, an NO passage, a common passage, an NC passage an external exhaust passage, and an internal exhaust passage. The solenoid valve further includes a first or second metal ball to seal the external exhaust passage or the internal exhaust passage. The passage block includes a flat cover formed with a communication passage for communicating the recess with the common port.

Abstract: The present invention provides a gas generator including an ignition device chamber provided with the ignition device, a gas inflow chamber provided with a gas discharge port, and a pressurized gas chamber being arranged in order from the first end; a closing member including a fixing portion and a rupturable plate fixed to the fixing portion and closing between the pressurized gas chamber and the gas inflow chamber; and a breaking device for the rupturable plate being arranged between the ignition device chamber and the gas inflow chamber, the breaking device including a base portion, which has an outer circumferential surface abutted against an inner circumferential wall surface of the cylindrical housing, and a rod extending from the base portion to the rupturable plate, the fixing portion of the closing member including an annular plate surface portion, extending radially inward from the inner circumferential wall surface of the cylindrical housing, and a cylindrical wall portion extending from an inner c

Abstract: A gas generator includes a supply of stored gas containing carbon dioxide, and a magnesium supply or source, such as magnesium mesh, that is readily ignitable in the presence of carbon dioxide in the presence of heat.

Abstract: A sub-assembly for a housing of a gas generating system is provided. The sub-assembly includes a housing portion and an insert attached to the housing portion such that at least a portion of a force applied to one of the housing portion and the attached insert is transferred through the attachment to the other one of the housing portion and the attached insert. A housing, a gas generating system, and a vehicle occupant protection system incorporating the sub-assembly are also disclosed.

Abstract: Haptic feedback system that simulates a detonation or explosive event. The system includes a power supply, an energy storage circuit, a switching circuit, and a conductor operatively connected to said energy storage circuit through said switching circuit whereby said conductor causes a haptic event when said energy storage circuit is electrically connected to said conductor by operation of said switching circuit. The system creates real explosions, shock waves and pressure waves in a safe manner for use in a simulator.

Abstract: This igniter has a heating element, an ignition agent positioned so as to be in contact with the heating element, and conductive pins that pass through an insulating layer, and are electrically connected to the heating element. One end of each conductive pin is exposed through the insulating layer in such a manner that a current supply component, which supplies an ignition current, is connected to the heating element. An IC tag is positioned inside the insulating layer, in the vicinity of the conductive pins.

Abstract: A chemical oxygen generator with enhanced structural integrity. In some embodiments, the chemical core of the chemical oxygen generator is reinforced with one or more reinforcing structures that are integral with the core. In some embodiments, as the core burns, the one or more reinforcing structures become fused with the core.

Abstract: A prepackaged bug gun magazine for a gas powered weapon includes a body adapted to fit within an opening in the weapon. The magazine has a first surface, a second surface and at least one chamber. The length of the chambers extends from the first surface to the second surface. A first frangible sealing membrane is removably affixed to the first surface of the body and seals the first end of the chamber. A second frangible sealing membrane is removably affixed to the second surface of the body and seals the second end of the chamber. Particulate projectiles are located within the chambers and sealed in place by the sealing membranes. An indexing system aligns the chamber with a barrel of the weapon. Discharge causes pressurized gas to breach the first membrane and impact of the particulate projectiles will breach the second membrane, permitting the projectiles to enter the barrel.

Abstract: A linear actuator contains a housing having a first end and a second end. A hollow piston is positioned within the housing to slidably engage with an inner wall of the housing. A sealed gas chamber is formed within the hollow piston and contains stored gas for driving the piston upon activation of the actuator.

Abstract: An actuator includes: a gas generator which generates an operation gas when actuated; an accommodation-side portion which accommodates and holds the gas generator; and a push-side portion which is pushed by the operation gas generated from the gas generator to advance relatively so as to move away from the accommodation-side portion, wherein: a seal material which realizes watertightness between the push-side portion and the accommodation-side portion before actuation is provided in an external surface side portion between the push-side portion and the accommodation-side portion by being poured and set through molding; and the seal material doubles as an adhesive which enables the push-side portion to move relatively when actuated and which provides a joining force with which the push-side portion can be restricted from moving relatively before actuation so as to join the push-side portion and the accommodation-side portion together.

Abstract: A household appliance system for safe generation and delivering of ozone comprising at least one disposable capsule, each capsule is configured to chemically generate a predetermined dose of oxygen wherein the disposable capsule is manipulated in a way that initiates generation of oxygen, and an ozone generator for generating ozone from said predetermined dose of oxygen, wherein the ozone generator is fluidically connected to said capsule.

Abstract: The invention relates inter alia to a gas generator (10) for generating a driving gas for a vehicle safety device, wherein the gas generator has an ignition device (30) and propellant (50) which generates gas after being ignited by the ignition device (30). It is provided according to the invention that the gas generator (10) has a tube (20), to one tube end (21) of which the ignition device (30) is fixed by means of a moulded-in or moulded-on injection-moulded body (40).

Abstract: A vehicle safety system includes a module including an airbag and an inflator. The inflator includes a housing (12) in which a combustion chamber (16) containing a pyrotechnic propellant is arranged in which hot gas is generated and which housing includes at least one escape orifice (22) toward the environment of the inflator (10), as well as a coolant reservoir (24) arranged in the housing (12) in which coolant is accommodated prior to activation of the inflator (10) and which has at least one coolant outlet orifice (28?). The coolant outlet orifice (28) is arranged in direct vicinity of the outlet orifice (22). Upon activation of the inflator (10) coolant flows out of the inflator into the protection system and wets an adjacent wall (32) of the protection system against which also the hot gas is flowing.

Abstract: Muzzleloader systems include a pre-packaged propellant charge and primer for providing efficient loading and unloading of the muzzleloader. The breech end accepts the propellant and means are provided to prevent breech loading of the projectile. A propellant cartridge conforms to a constriction portion to minimize ullage. A projectile is inserted in the muzzle end seats on the constriction portion. The propellant cartridge may be received in a removable breech plug. The constriction portion may be part of the breech plug or a separate component secured in the barrel by way of the breech plug. The cartridge may have a primer mechanism integrated into a proximal end. Projectiles have sliding components that have an axial elongate position and an axial shortened position and may be loaded with a ramrod having an engagement portion for each of the two pieces whereby the projectile doesn't prematurely collapse.

Abstract: The invention relates to a pyrotechnic actuator assembly (10) for release of a retaining means (12) in a vehicle safety system (14) comprising a housing (16) composed of a first housing part (18) and a second housing part (20) fixedly connected to the first housing part (18), the two housing parts (18, 20) forming a substantially tight housing chamber (22), a pyrotechnic charge (24) received in the housing chamber (22) as well as an electric ignition unit (26) for triggering of the pyrotechnic charge (24), wherein the electric ignition unit (26) extends from outside of the housing chamber (22) through the first housing part (18) into the housing chamber (22), and wherein the housing (16) includes a housing chamber portion (28) to which the pyrotechnic charge (24) is directly adjacent and includes a contact portion (30) for fastening the retaining means (12). Moreover the invention also comprises an airbag module of a vehicle safety system including such actuator assembly (10).

Abstract: The oxygen generation system includes a chemical oxygen generator that creates oxygen through an exothermic chemical reaction that creates sufficient heat to pose a serious risk to a user. The oxygen generation system therefore includes a containment layer to permit safer administration of oxygen from a chemical oxygen generator by shielding a user from and/or dissipating the heat generated by the chemical generator. The oxygen generation system may be handheld and portable for use in extreme, remote, and/or hostile conditions, locations, environments, and situations with a simple activation method easily operated under stress without any preparation or maintenance.

Abstract: A small, lightweight, and inexpensive gas generator for an airbag device. The gas generator for an airbag device according to the present invention includes: a deployment activating initiator that accommodates a predetermined amount of ignition powder and is activated by an impact on a vehicle; a main gas generating agent that generates a main gas for inflating an airbag when burned; a main gas generation chamber that accommodates the main gas generating agent; a secondary gas generation chamber that is provided in an interior of the main gas generation chamber and accommodates the initiator; and a secondary gas generating agent accommodated in the secondary gas generation chamber.

Abstract: An inflator including an initiator and a bulkhead molded around the initiator. The inflator includes a housing formed of two overlapping housing portions mechanically coupled together around a portion of the bulkhead. One of the housing portions includes cut tabs that are crimped into cut receivers of the other housing portion.

Abstract: Provided is a gas generator which is reduced in weight and size while maintaining a sufficient strength as a pressure vessel. A gas generator (1) includes a housing (4) in a tubular shape having an opening (10) on at least one end thereof and a plug (12) inserted in the opening (10), so that an end portion (11) on the opening side is reduced in diameter and caulked in a caulking groove (13) of the plug (12), to thereby seal the opening (10), in which: the caulking groove (13) is a streak groove that extends along the periphery of the plug (12) and is rectangular in section; and the caulking groove (13) has at least one of side walls (14) forming the calking groove (13), the one side wall (14a) being closer to the center of the housing, which is orthogonal or sloped to the opening side, with respect to the axis (X) of the housing (4).

Abstract: A gas generator containing perforate internal chambers, each chamber in vapor communication with at least one other chamber in the gas generator, is provided. When granulated compositions are utilized in one or more of the chambers, permeable materials such as cheesecloth, neoprene, Tyvek™, metal or non-metallic screen, and other suitable fluid permeable materials, may be provided to physically seal the perforations of the various chambers, thereby separating the granulated composition(s) contained therein. In this way, off-gas products formed naturally over time may be effectively managed to ensure expected performance criteria of the associated inflator.

Abstract: Apparatus for inflating an inflatable vehicle occupant protection device includes a primary housing, a primary inflation fluid source, a secondary housing, and a secondary inflation fluid source. The primary and secondary housings are constructed from sheet metal by stamping. The primary inflation fluid source is located in the primary housing. The primary inflation fluid source is actuatable to effect a primary flow of inflation fluid out of the primary housing to inflate the inflatable device. The secondary housing is disposed within the primary housing. The secondary inflation fluid source is located in the secondary housing. The secondary inflation fluid source is actuatable to affect a secondary flow of inflation fluid to supplement the primary flow of inflation fluid. The secondary housing has a first portion that moves at least partially out of engagement with a second portion of the secondary housing when the secondary inflation fluid source is actuated.

Abstract: A linear actuator contains a housing having a first end and a second end. A hollow piston is positioned within the housing to slidably engage with an inner wall of the housing. A sealed gas chamber is formed within the hollow piston and contains stored gas for driving the piston upon activation of the actuator.

Abstract: A diagnostic circuit is provided that includes a FET having a source connected to a first node, a drain, and a gate; a first switch connecting a current-supply node to one of the gate and a second node; a second switch connecting the first node and the second node; a variable current source providing one of a drive current and a test current to the current-supply node; a fire current source configured to provide a fire current to the drain; an error-detecting circuit connected to the second node, a reference terminal, and an error node, the error-detecting circuit generating an error signal to the error node indicating whether an error-detecting parameter at the second node exceeds a reference parameter at the reference terminal; and a control circuit generating control signals to control the variable current source, and the first and second switches.

Abstract: A pyrotechnic inflator assembly including a shell member and an end cap joinable with the shell member to form a subassembly. The subassembly contains a quantity of pyrotechnic material and at least in part defines a combustion chamber wherein at least a portion of the quantity of pyrotechnic material is reactable to form product gas for inflation of an associated airbag cushion and to generate pressure therewithin. A diffuser assembly can be disposed adjacent an end of the shell member and includes flow control features for controlling flow of product gas from the inflator assembly. The inflator assembly further includes a composite overwrap about at least a portion of the subassembly and the diffuser assembly such that the pyrotechnic inflator assembly can withstand the pressure generated within the combustion chamber upon reaction of the pyrotechnic material. Corresponding methods of making a pyrotechnic inflator assembly are also provided.

Abstract: A gas generator includes two reserves of reactive gases, an ignition device capable of being triggered in order to open lids of the reserves and initiating combustion of the reactive gases, and an orifice for letting out combustion gas towards the outside. The gas reserve, a device for diffusing the combustion gas towards the outside and the second gas reserve are successively positioned along a longitudinal direction. A guiding wall is provided in the reserve for guiding the pressure wave generated by the device up to the lid in order to open this first lid. The diffusing device includes a conduit for guiding the pressure wave from the first lid to the second lid so as to open the latter, and which communicates with the orifice.

Abstract: A heated inflation system for an inflatable device on an aircraft is provided. The heated inflation system includes an inflation cylinder configured to hold a gas mixture under pressure, a heating element configured to selectively heat the gas mixture, and a temperature sensor configured to sense a temperature of the gas mixture. The heated inflation system also includes a control module coupled to the heating element and the temperature sensor. The control module is configured to regulate heat applied by the heating element to the gas mixture based on a sensed temperature from the temperature sensor.

Abstract: A pyrotechnic pretensioner (10) for a safety system in a vehicle has an inflator (22) including a propelling charge (26) and an igniter (32) and including a housing (12) in which a pressure chamber (14) is provided into which gas can flow and in which a piston can be displaced by the gas, an end piece (16) which closes the pressure chamber (14) and in which a chamber (24) is formed into which the propelling charge (26) is filled and whose wall constitutes the wall of the propellant is provided on the housing (12).

Abstract: A base assembly is provided for a gas generating system. The assembly includes a base having at least one opening formed therein, and an initiator assembly attached to the base so as to form a gas-tight seal surrounding the at least one opening. A retainer is attached to the base and includes an opening into which a portion of the initiator assembly extends. The retainer is attached to the initiator assembly along the retainer opening.

Abstract: A sub-assembly for a housing of a gas generating system is provided. The sub-assembly includes a housing portion and an insert attached to the housing portion such that at least a portion of a force applied to one of the housing portion and the attached insert is transferred through the attachment to the other one of the housing portion and the attached insert. A housing, a gas generating system, and a vehicle occupant protection system incorporating the sub-assembly are also disclosed.

Abstract: An igniter for a passenger vehicle safety airbag module includes a housing with apertured walls, gas-generating tablets filling the housing, and, in direct contact with gas-generating tablets, an initiator containing combustible material. A plurality of four malleable flaps of substantially identical shape and size are secured about the squib in an upstanding circumscribing array with spaced-apart, opposed lateral edges between adjacent of the flaps interconnected by fluid seals in the form of webbing that is structurally less robust than the flaps. The ends of the flaps remote from the squib curl radially inwardly into a spaced-apart edge-to-edge disposition beyond the combustible material. The webbing and the flaps together enclose an interior space and the combustible material. Pressure from the ignition of the combustible material causes the fluid seals to burst and the flaps to pivot outwardly crushing the gas-generating tablets in the housing.

Abstract: The present invention provides a gas generator including: a housing including an inner cylindrical member for defining an ignition chamber therein, a first combustion chamber and a second combustion chamber provided outside the inner cylindrical member and being charged with the first and second gas generating agents, respectively, a plenum chamber located between the first combustion chamber and the second combustion chamber and being defined by the partition member, a first communication nozzle and a second communication nozzle provided in the inner cylindrical member, an axial position of the first communication nozzle being adjusted to be farther away from the plenum chamber than an axial position of the second communication nozzle, a first gas generating agent to be burn up earlier than a second gas generating agent.

Abstract: The invention relates inter alia to a gas generator (10) for generating a driving gas for a vehicle safety device, wherein the gas generator has an ignition device (30) and propellant (50) which generates gas after being ignited by the ignition device (30). It is provided according to the invention that the gas generator (10) has a tube (20), to one tube end (21) of which the ignition device (30) is fixed by means of a moulded-in or moulded-on injection-moulded body (40).