Abstract: A gas generator for a restraining device includes, a housing having an ignition device and a diffuser portion, and a gas generating agent charged in an inner space of the housing, a partition member having a communication hole and being disposed to incline regarding a long axis of the housing, thereby dividing the inner space into a gas generating agent charging space and a gas flow channel space, the gas flow channel space communicating with the diffuser portion, both of the edges of the partition member being abutted against an inner circumferential surface of the housing, a cross-sectional area of the gas generating agent charging space decreasing from the ignition device side at one end of the housing to the diffuser portion side at the other end of the housing, a cross-sectional area of the gas flow channel space increasing from the ignition device side to the diffuser portion side.

Abstract: A pyrotechnic pressure accumulator includes an elongated body extending from a first end of a pyrotechnic section to a discharge end of a hydraulic section. A propellant charge located in a gas chamber of the pyrotechnic section, a piston movably disposed the hydraulic section, and a fluid disposed in a hydraulic chamber between the piston and the discharge end, wherein the fluid is exhausted under pressure through a discharge port in response to ignition of the propellant charge.

Abstract: An extensible protection system, comprises a frame that can be deployed around a central tube of longitudinal axis, comprising two ends, a frame covering fabric, the frame having at least two pairs of rigid tubes, two rigid tubes of one pair, in a respective axial plane passing through the longitudinal axis, being articulated by one of their ends to a respective yoke, of which yokes one is secured to one of the ends of the central tube, and the other is secured to the other end of said central tube, the other free ends of the rigid tubes being able to move in the axial plane of the pair, one semirigid tube per pair of rigid tubes, in said axial plane of the pair, comprising at each of its ends a piston, each piston of a semirigid tube being able to slide fluidtightly in each one of the rigid tubes of the pair in order to form a pressurizing chamber in each of the rigid tubes, the protection system further comprising a device for pressurizing the chambers of the rigid tubes in order to cause the pistons to mov

Abstract: An actuator including: a housing; a piston movably disposed in the housing, the piston being movable between an extended and retracted position; a plurality of gas generation charges generating a gas in fluid communication with the housing; and an exhaust port for exhausting gas from the cylinder generated by the plurality of gas generation charges; wherein activation of each of the plurality of gas generation charges results in an increase in pressure in the housing causing the piston to move in the housing from the refracted to the extended position. The actuator can further include a return spring for biasing the piston in the retracted position and the plurality of gas generation charges can be disposed in the housing.

Abstract: An explosion-driven setting tool includes a setting mechanism (12) driven by a propellant (23), an ignition unit (18) for igniting the propellant (23), a receptacle (15) for receiving a propellant holder (20), a data communication interface (31) for receiving and transmitting data of the propellant holder (20), and a data processing unit (30) for receiving data transmitted by the data communication interface (31) and connected with a display (50) for displaying the propellant supply level (27) of the propellant (23) in the propellant holder having a housing (21) with an interior space (22) for receiving the propellant (23), and a data storage identification unit (40) in which the propellant supply level (27) is stored for being read-out.

Abstract: A power source for applying a force to an object includes thermite in a quantity sufficient to generate a thermite reaction, and a gas producing substance disposed in association with the thermite. The gas producing substance produces a gas when the thermite reaction. The thermite reaction, the gas, or combinations thereof provide a force to the object.

Abstract: The subject of the present invention is a pyrotechnic method for generating gas at two successive flow rates—a first flow rate then a second flow rate, said first flow rate being higher than said second flow rate—which comprises: the combustion of a first pyrotechnic charge (10) in a first combustion chamber (1) discharging into a second combustion chamber (2) via at least one nozzle (3); and the combustion of a second pyrotechnic charge (20) in said second combustion chamber (2) discharging to the outside via at least one vent (21). Characteristically, said first chamber (1) operates at high pressure and said second chamber (2) operates at low pressure. Another subject of the invention is a pyrotechnic gas generator suitable for the implementation of said method. The invention is most particularly applicable in the context of side protection airbags (“curtain airbags”), used in automobile safety.

Abstract: The present invention provides a gas generator, including: a tubular housing, an ignition device attached to one end of the tubular housing, a diffuser portion having a gas discharge port and being attached to the other end of the tubular housing, in the tubular housing, a first combustion chamber defined by a first perforated-plate member on one end side in the tubular housing and filled with a first gas generating agent, a tubular member disposed in the remaining inner space of the tubular housing and having a communication hole on a peripheral wall portion thereof, a second-perforated plate member disposed between the first perforated-plate member and the tubular member, a second combustion chamber defined by the tubular member and filled with a second gas generating agent, the tubular member being disposed so that a gap is formed between the peripheral wall portion of the tubular housing and the tubular member, the tubular member having a first opening end portion abutting against the inner peripheral

Abstract: A power source for applying a force to an object includes thermite in a quantity sufficient to generate a thermite reaction, and a gas producing substance disposed in association with the thermite. The gas producing substance produces a gas when the thermite reaction. The thermite reaction, the gas, or combinations thereof provide a force to the object.

Abstract: A power source for actuating a subsurface tool is described herein, the power source comprising thermite in a quantity sufficient to generate a thermite reaction, and a polymer disposed in association with the thermite. The polymer produces a gas when the thermite reaction occurs, the gas slowing the thermite reaction. The slowed thermite reaction enables a continuous pressure to be provided to the subsurface tool over a period of time, providing superior actuation over a conventional explosive power charge, through a non-explosive reaction.

Abstract: The invention relates to a gas generator for an airbag module, comprising a housing, and a filter fastened in the housing for filtering a gas that can be generated with the gas generator. According to the invention, it is provided that a part of the gas generator is inserted into a recess of the filter for fastening the filter in the housing.

Abstract: A method of forming an inner can of a gas cartridge including securing inner can material and pre-stressing the material such that flexion thereof during gas cartridge use is distributed.

Abstract: A mechanism (10) for releasably confining pressurized fluid in a container (18) is provided. The mechanism includes a rupturable membrane (22) in fluid communication with an interior of the container (18), thereby exposing the membrane (22) to the fluid. The membrane (22) is configured to obstruct flow of the pressurized fluid when externally supported against pressure exerted by the fluid. The membrane (22) is also rupturable by pressure exerted by the fluid when not externally supported against the pressure exerted by the fluid. A support member (28) is provided for externally supporting the membrane (22) against pressure exerted by the fluid. The support member (28) is configured to be fracturable upon exposure to combustion products formed by activation of a gas generator (66) at least partially encased within the support member (28).

Abstract: In accordance with one embodiment of the present disclosure, a method includes driving a piston by mechanically harnessing an explosion of energetic material contained in a cartridge. The method further includes releasing cleanser contained in the cartridge in response to the explosion of the energetic material.

Abstract: The present invention provides a filterless gas generator, including a housing having a closure shell, a diffuser and a flange portion, an inner tube member accommodating an igniter coaxially with the central axis of the housing, an opening end of the inner tube member located in a bottom plate of the closure shell and a ventilating portion formed at the opening end, the inner tube member fixed to an igniter attaching portion, being a cylindrical portion projecting inwardly in the closure shell, and a passage being formed between the inner tube member and the igniter attaching portion to reach the ventilating portion, one end opening of a outer circumference cylindrical member provided in the combustion chamber being located at the bottom plate of the closure shell, the annular porous member disposed and defining a space above the combustion chamber, the space communicating to a gas discharge path between the outer circumference cylindrical member and a side surface of the diffuser shell through a communicati

Abstract: An actuator includes a piston having an actuating pin, a squib, and a cylinder case. The cylinder case has a peripheral wall part that covers the circumference of the piston and a ceiling wall part having a through hole which allows an actuating pin to protrude from the through hole. The actuator is configured to make the a piston move backward along with the actuating pin by ejecting a driving gas generated from the squib to a space between the ceiling wall part and the piston during actuation. A sealing ring which is relatively movable with respect to the actuating pin while maintaining the state of sealing up a gap between the actuating pin and the through hole, is provided at an inner face side of the ceiling wall part.

Abstract: A gas generator has an igniter and a compressed gas container which contains a first filling gas and has an outflow opening that is closed by a first bursting diaphragm. Upon activation of the gas generator the igniter produces a shock wave which runs at least in part through the compressed gas container before destroying the first bursting diaphragm. The compressed gas container is filled with a mixture of the first filling gas and at least one second substance having a molar mass higher than that of helium, the proportion of the second substance being between 1 and 13 mole percent of the total filling quantity or reaching, at maximum, the total mass of the first filling gas, and the first filling gas being helium, hydrogen, or a mixture of the two gases.

Abstract: Disclosed is an airbag deployment device that includes a containment vessel and a retention rack disposed within the containment vessel, wherein the retention rack comprises at least one container, and wherein at least one airbag pyrotechnic actuator may be placed within the at least one container and secured through utilization of at least one pin.

Abstract: A power source for actuating a subsurface tool is described herein, the power source comprising thermite in a quantity sufficient to generate a thermite reaction, and a polymer disposed in association with the thermite. The polymer produces a gas when the thermite reaction occurs, the gas slowing the thermite reaction. The slowed thermite reaction enables a continuous pressure to be provided to the subsurface tool over a period of time, providing superior actuation over a conventional explosive power charge, through a non-explosive reaction.

Abstract: A gas generating system includes a housing having an adapter formed integral with the housing to enable operative coupling of the gas generating system to an associated gas-actuatable device. The adapter may include openings formed therein to enable distribution of gases to an exterior of the housing.

Abstract: A projectileless ammunition system (20; 320) includes a metallic case (22; 322). A propellant charge (26; 326) is carried by the case and covered by an over-powder member (24; 324) in the absence of a separate projectile. The ammunition is advantageously used with an industrial ballistic tool operating so that each spent case serves as the effective projectile to be propelled by firing of the next round of ammunition.

Abstract: A gas generator for a vehicle passenger protection device. The gas generator includes a combustion chamber in which a gas-generating charge is arranged. A conical deposition chamber is provided that has a first wall, within which a plurality of gas through-holes are formed, and at least one second wall which extends at an angle from the first wall and within which at least one blow-off hole is formed. Gas generated inside the combustion chamber enters the deposition chamber through the gas through-holes and leaves the deposition chamber through the at least one blow-off hole.

Abstract: The pyrotechnic cup is designed such that it may be used as part of an airbag initiator. In some embodiments, the cup comprises a cylindrical portion and a dome that is attached to a first end of the cylindrical portion. A cruciform is also added to the cup. The cruciform is positioned at the apex of the dome. In some embodiments, the cruciform comprises one or more petals. Other embodiments may be designed in which deployment of the initiator causes gas to be directed out of the pyrotechnic cup via the apex of the dome.

Abstract: A gas generator 10 contains a baffle assembly for cooling of gases. An imperforate housing 46 is contained within the gas generator 10. A perforate housing 30 is contained within the imperforate housing 46. At least one orifice 70/72 is formed within the baffle assembly, where the orifice 70/72 is formed at the juncture 57 of the baffle assembly 12 and the perforate housing 30, at a second end of the perforate housing 30. Upon activation of the gas generator 10, gases produced are shunted through the orifice 70/72 and into the baffle assembly 12 for cooling and filtration thereof.

Abstract: An actuator which has an operating pin of the invention includes a piston which has an operating pin, a squib, and a cylinder case for holding the piston, in which the piston is moved rearward along with the operating pin by a driving gas generated injected from the squib into the cylinder case. A cap portion for covering the side of the squib with a gas injection port comprises a cylindrical side portion and a front end wall portion, and the operating pin is projected from the center of this front end wall portion. The cap portion is arranged with injection holes through which the driving gas is injected. Forward movement of the piston before the actuator is operated is restricted by the front end wall portion of the cylinder case coming into contact with the ceiling wall portion of the cylinder case.

Abstract: An inflator 10 of the present invention contains: a housing 12, a cold gas chamber 16 within the housing 12 for storage of a stored gas supply, a pyrotechnic chamber 18 within the housing 12, a pyrotechnic charge 20 within the pyrotechnic chamber 18, a wall 22 adjoining the cold gas and the pyrotechnic chambers 16, 18, a first orifice 24 defined in the wall 22 for passage of gas between the chambers, and a perforated flexible member 28 contained within the cold gas chamber 16, wherein the flexible member 28 is fixed about the orifice 24 for modulation or controlled variation of gas flow through the orifice 24.

Abstract: The present invention relates to a gas generator for a motor vehicle safety device. The generator includes at least a combustion chamber and a gas tank. The combustion chamber contains a pyrotechnic initiator and pyrotechnic charge for generating gas and including at least one oxidizing material. Combustion of the charge is triggered by the initiator. The gas tank is closed towards the combustion chamber by a capsule. The capsule is suitable for giving way during combustion of the charge in order to release the gas from the tank and exhaust it towards the outside. The combustion chamber contains a metal charge of at least one metal. The metal charge is distinct from the pyrotechnic charge.

Abstract: A containment device for an inflator, the containment device comprising: an outlet plate having an outlet opening; a burst disk disposed over the outlet opening; an initiator having a support member; a movable support disposed between the support member and the burst disk, the support providing support to the burst disk; wherein activation of the initiator causes the movable support to move which allows the burst disk to rupture.

Abstract: A cartridge magazine includes a carrier member (20) having a plurality of receptacles (21) for receiving propellant-containing cartridges (11), longitudinal ribs provided on longitudinal sides of the recess (27) and limiting same; and a cover strip (30) for securing the cartridges in the receptacles and located in the recess (27) formed in a flat surface (23) of the carrier member (20) and extending in a longitudinal direction (L), for limiting the recess, and a cover strip (30) for securing the cartridges in the receptacles and located in the recess (27).

Abstract: The air bag gas generator comprises a housing having a gas discharge port, an ignition unit chamber in which ignition units are accommodated, and a combustion chamber in which a gas generating agent is accommodated, a cylindrical coolant/filter disposed between the combustion chamber and the gas discharge port, so that combustion gas passes through the coolant/filter prior to discharge through the gas discharge port, and the air bag gas generator meeting the following requirements (a), (b), and (c): (a) that the gas generating agent has an amount of heat generation of 10 to 30 kcal/mol; (b) that the mass (g) of the coolant/filter in relation to 1 mol of gas generated during combustion of the gas generating agent be 20 to 65 g/mol; and (c) that the coolant/filter has a thickness of not less than 4.0 mm.

Abstract: An actuator includes a piston having an actuating pin, a squib, and a cylinder case. The cylinder case has a peripheral wall part that covers the circumference of the piston and a ceiling wall part having a through hole which allows an actuating pin to protrude from the through hole. The actuator is configured to make the a piston move backward along with the actuating pin by ejecting a driving gas generated from the squib to a space between the ceiling wall part and the piston during actuation. A sealing ring which is relatively movable with respect to the actuating pin while maintaining the state of sealing up a gap between the actuating pin and the through hole, is provided at an inner face side of the ceiling wall part.

Abstract: A mechanism (10) for releasably confining pressurized fluid in a container (18) is provided. The mechanism includes a rupturable membrane (22) in fluid communication with an interior of the container (18), thereby exposing the membrane (22) to the fluid. The membrane (22) is configured to obstruct flow of the pressurized fluid when externally supported against pressure exerted by the fluid. The membrane (22) is also rupturable by pressure exerted by the fluid when not externally supported against the pressure exerted by the fluid. A support member (28) is provided for externally supporting the membrane (22) against pressure exerted by the fluid. The support member (28) is configured to be fracturable upon exposure to combustion products formed by activation of a gas generator (66) at least partially encased within the support member (28).

Abstract: The present invention provides a gas generator including a housing formed by a closure shell and a diffuser shell having a gas discharge port, a combustion chamber provided inside the housing and charged with a gas generating agent, an ignition device to ignite and burn the gas generating agent inside the combustion chamber, a cylindrical filter disposed to face the gas discharge port and having an annular upper surface press-contacting a ceiling surface of the housing, a retainer disposed inside the combustion chamber to support the cylindrical filter, the retainer being substantially a cylinder, having a larger diameter portion and a smaller diameter portion, that is provided with a vent hole, as well as an annular surface portion provided between the larger diameter portion and the smaller diameter portion, an outer peripheral surface of the larger diameter portion abutting against an inner wall surface of the housing before activation and press-contacting the inner wall surface of the housing in activa

Abstract: A gas generator, including an igniter, a gas generating agent ignited by the igniter and generating gas by burning, and a holder and an AC cup forming therein a gas generating agent storage chamber filled with the gas generating agent. A housing formed of the holder and the AC cup is vertically held and fixed by a pair of plate-like members arranged parallel with each other. The gas generator also includes projections forming deformable areas which are deformed in a direction for decreasing the vertical outside dimensions of the gas generator when the housing is fixed by the pair of plate-like members. Thus, when the gas generator is fixed by the pair of plate-like members in the vertical direction, the dispersion of the outside dimensions of the gas generator can be absorbed.

Abstract: An ignition delay module (10) for use in an airbag inflator (100, 200) has an ignition delay module housing (11). The ignition delay module (10) separates the inflator (100, 200) into two chambers (40, 60). A pyrotechnic tablet (2) is positioned inside the ignition delay module housing (11). Upon activation of the inflator (100, 200) the ignition delay module (10) prevents a gas generant (62) in a second chamber (60) of the inflator (100, 200) from igniting until at least a portion of the pyrotechnic tablet (2) is burnt. Preferably a burn inhibitor layer (3) is affixed or otherwise applied to a surface of the pyrotechnic tablet (2).

Abstract: A gas generator for an air bag, includes: a housing having a gas discharging hole; an ignition unit activated upon an impact, the ignition unit including at least one igniter and at least one transfer charge, the transfer charge being a mixture of a transfer charge power and a gas generating agent molded article, and the gas generating agent molded article generates a gas of at least 1.2 moles/100 g; and a combustion chamber accommodating a gas generating agent which is ignited and burnt to generate a combustion gas.

Abstract: A pyrotechnic drive unit includes a cylinder tube (12) having an axial end (28), a piston (14) guided in the cylinder tube (12), a pyrotechnic igniter (16) which is adjacent to the piston (14) and constitutes the pyrotechnic drive, and a plastic part (18). The plastic part (18) is injection-molded to the igniter (16) and to the axial end (28) of the cylinder tube (12) so that it fastens the igniter (16) to the cylinder tube (12) and tightly closes the axial end (28) of the cylinder tube (12), the plastic part (18) engaging the piston (14) in an initial position of the drive unit (10).

Abstract: An inflator 10 of the present invention contains: a housing 12, a cold gas chamber 16 within the housing 12 for storage of a stored gas supply, a pyrotechnic chamber 18 within the housing 12, a pyrotechnic charge 20 within the pyrotechnic chamber 18, a wall 22 adjoining the cold gas and the pyrotechnic chambers 16, 18, a first orifice 24 defined in the wall 22 for passage of gas between the chambers, and a perforated flexible member 28 contained within the cold gas chamber 16, wherein the flexible member 28 is fixed about the orifice 24 for modulation or controlled variation of gas flow through the orifice 24.

Abstract: A gas generating system usable in an inflatable vehicle occupant protection system is provided. The system includes an outer housing having an outer diameter varying within a range of approximately 16 millimeters to approximately 20 millimeters. A vehicle occupant protection system and an airbag module including the gas generating system are also provided.

Abstract: A gas generator (10) includes an igniter (27) and first and second inflation gas generant compositions (52, 52?) positioned to enable fluid communication with the igniter (27) upon activation of the igniter. Flow regulators (54, 54?) are provided to regulate a flow of combustion products from the igniter (27) to the first and second inflation gas generant compositions (52, 52?), to correspondingly regulate a time period between activation of the igniter (27) and initiation of combustion of the first and second inflation gas generant compositions (52, 52?). In another aspect, the gas generator (10) includes a modular baffle system (70) including a first baffle chamber (71) in fluid communication with an inflation gas generant combustion chamber (50) for receiving therein combustion products from combustion of an inflation gas generant (52) positioned in the combustion chamber.

Abstract: A powder actuated tool with a safety trigger lock device has a handle assembly, a barrel assembly and a switch. The handle assembly has a trigger. The trigger is mounted pivotally in the handle assembly and has an actuating edge. The barrel assembly is mounted in the handle assembly and has a firing mechanism and a sear corresponding to the trigger. The switch has an actuating rod mounted rotatably in a handle assembly and has a surface and a recess. The recess is defined in the surface of the actuating rod and selectively receives the actuating edge of the trigger. Users can turn the switch to make the recess receives the actuating edge of the trigger to allow the trigger pivoting or to make the surface of the actuating rod abut the actuating edge of the trigger to keep the trigger from pivoting.

Abstract: The technical field of the invention is that of pyrotechnic actuators comprising a piston, the basic function of which is to exert a thrust so as to displace an object by shooting out the piston. More particularly, the invention relates to a pyrotechnic actuator (1, 1a, 1b, 1c) comprising a pyrotechnic-gas generator (7), a combustion chamber (3) and a piston (9) which can move in a slide chamber (5) under the effect of the said gases. The principal characteristic of this actuator is that it comprises a shut-off device (4, 4a, 4b, 4c) used after the triggering of the said actuator (1, 1a, 1b, 1c) in order, on the one hand, to close the slide chamber (5) and, on the other hand, to secure the depressurization of the combustion chamber (3).

Abstract: A gas generator, comprising a first and a second combustion chamber, each of which is associated with a propellant charge and an igniter, an outflow chamber with inflow- and outflow openings, arranged between the combustion chambers, and a partition plate dividing the outflow chamber into two partial chambers is provided. An edge region of the partition plate lies at least partially against a boundary of the outflow chamber. Each partial chamber is associated with one of the combustion chambers. A central section of the partition plate surrounded by the edge region has a geometry deviating from a plane and has at least one projection which is directed into one of the partial chambers.

Abstract: A projectileless ammunition system (20; 320) includes a metallic case (22; 322). A propellant charge (26; 326) is carried by the case and covered by an over-powder member (24; 324) in the absence of a separate projectile. The ammunition is advantageously used with an industrial ballistic tool operating so that each spent case serves as the effective projectile to be propelled by firing of the next round of ammunition.

Abstract: An apparatus comprises vehicle seat belt webbing (18), a cylinder (50), and a piston (60) movable in the cylinder to effect pretensioning of the seat belt webbing. The apparatus also comprises a fluid source (10) for providing fluid under pressure to move the piston (60) in the cylinder (50). The fluid source (10) comprises a propellant container (122) defining a propellant chamber (123) and a propellant (82) in the propellant chamber. The propellant (82) is ignitable to produce fluid under pressure. The propellant container (122) comprises a first portion (124) made from plastic and a second portion (126) made from metal. The metal portion (126) is secured to the plastic portion (124) to effect a hermetic seal of the propellant container (122).

Abstract: Systems, methods, and apparatus for use in an airbag inflation system are disclosed. An explosively formable projectile piece is positioned adjacent to an opening and, upon deployment of an initiator, is forced through the opening, thereby changing the shape of the projectile piece. The projectile piece is projected towards a rupturable wall. Once the projectile piece has ruptured the wall, the airbag inflation gas can pass through the opening in the wall and inflate the airbag.

Abstract: A one-piece initiator device including an end closure having a first end portion and a second end portion opposite the first end portion. The end closure forming a passage between the first end portion and the second end portion. A squib is at least partially positioned within the passage. A canister is mounted to the squib and extends outwardly from the end closure first end portion. The canister defines a charge chamber having a reactive charge disposed within the charge chamber. A permeable fill material is disposed within the passage and joins the squib to the end closure to form the one-piece initiator device. The permeable fill material insulates the squib from electrical contact with the end closure and provides a controlled gas flow path through the one-piece initiator device.

Abstract: When a gas generating agent 9a inside a first combustion chamber 5a is burnt, a gas generating agent 9b is prevented from being burnt by function of a metal thin plate 11 closing a communication hole 10 with a second combustion chamber 5b. A cup 1190 having a hole 1191 is covered on an igniter 1112, and the flame thereof advances into a transfer charge 1116 straightly in a narrow width. Accordingly, since the transfer charge 1116 is burnt completely, sufficient flame for burning a gas generating agent 1109 can be generated securely. A communication hole 3010 between a first combustion chamber 3005a and a second combustion chamber 3005b is closed by double-layered seal tape 3011 laminated through an adhesive layer. After activation, the seal tapes 3011 are not ruptured due to increase in the internal pressure of the first combustion chamber 3005a, but they are peeled off easily due to increase in the internal pressure of the second combustion chamber 3005b.

Abstract: A flash-bang projectile that generates one or more noise pulses and one or more flashes of light. In generating a noise pulse, the flash-bang projectile provides a housing that includes a gas chamber that entraps air. The gas chamber includes a compression device that, when the flash-bang projectile is shot or otherwise ejected by a gun or other form of ejection device, compresses the air that is entrapped in the gas chamber. A burst disk forms one wall of the gas chamber and is configured to rupture a selected time delay after the air has been compressed. Rupturing of the burst disk releases the compressed air entrapped in the gas chamber, allowing the air to be released through a horn nozzle, thereby generating a noise pulse. The flash-bang projectile may have more than one gas chambers, with associated compression devices, whose burst disks are configured to rupture with diverse time delays, in which case the flash-bang projectile can generate multiple noise pulses with corresponding delays.

Abstract: An inflatable system includes an inflatable component and an distributed charge inflator disposed in the inflatable component. The distributed charge inflator includes a first charge for generating inflating gas and a housing body connected to the first charge. The housing body includes an initiator and a second charge that has relatively long burn time. Upon receiving a signal from a sensor, the initiator ignites the first charge and the second charge simultaneously. The first charge inflates the inflatable component and the second charge sustains the inflation of the inflatable component.