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US20010000862A1 - Device containing pyrotechnic material and method of manufacturing said device - Google Patents

Device containing pyrotechnic material and method of manufacturing said device Download PDF

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Publication number
US20010000862A1
US20010000862A1 US09/756,627 US75662701A US2001000862A1 US 20010000862 A1 US20010000862 A1 US 20010000862A1 US 75662701 A US75662701 A US 75662701A US 2001000862 A1 US2001000862 A1 US 2001000862A1
Authority
US
United States
Prior art keywords
opening
pyrotechnic material
glass
glass bulb
heating wire
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US09/756,627
Other languages
English (en)
Inventor
Wolfgang Gabriel
Karl Hudelmaier
Thomas Modinger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TRW Occupant Restraint Systems GmbH
Original Assignee
TRW Occupant Restraint Systems GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TRW Occupant Restraint Systems GmbH filed Critical TRW Occupant Restraint Systems GmbH
Priority to US09/756,627 priority Critical patent/US20010000862A1/en
Publication of US20010000862A1 publication Critical patent/US20010000862A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B1/00—Explosive charges characterised by form or shape but not dependent on shape of container
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R21/264—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic
    • B60R21/2644—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow using instantaneous generation of gas, e.g. pyrotechnic using only solid reacting substances, e.g. pellets, powder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/46—Reels with means to tension the belt in an emergency by forced winding up
    • B60R22/4628—Reels with means to tension the belt in an emergency by forced winding up characterised by fluid actuators, e.g. pyrotechnic gas generators
    • C—CHEMISTRY; METALLURGY
    • C06—EXPLOSIVES; MATCHES
    • C06C—DETONATING OR PRIMING DEVICES; FUSES; CHEMICAL LIGHTERS; PYROPHORIC COMPOSITIONS
    • C06C9/00—Chemical contact igniters; Chemical lighters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/10—Initiators therefor
    • F42B3/11—Initiators therefor characterised by the material used, e.g. for initiator case or electric leads
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F42—AMMUNITION; BLASTING
    • F42B—EXPLOSIVE CHARGES, e.g. FOR BLASTING, FIREWORKS, AMMUNITION
    • F42B3/00—Blasting cartridges, i.e. case and explosive
    • F42B3/28—Cartridge cases characterised by the material used, e.g. coatings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
    • B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
    • B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
    • B60R21/26—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow
    • B60R2021/26076—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags characterised by the inflation fluid source or means to control inflation fluid flow characterised by casing
    • B60R2021/26082—Material

Definitions

  • the present invention relates to a device containing pyrotechnic material, comprising a housing surrounding the pyrotechnic material, and a method of manufacturing the device.
  • the invention relates to a gas generator for a safety arrangement in motor vehicles or an igniter for such a gas generator.
  • the gas generators and igniters currently on the market generally have a housing of stainless steel, aluminum or plastic.
  • a high expenditure is necessary in order to produce these in a fluid-tight and gas-tight construction.
  • the metal ducts for the connecting cables of the igniters are cast integral into a metal ring with glass and the metal ring is connected by means of a welding process with the remaining housing parts of the igniter.
  • the present invention provides a device containing pyrotechnic material, in particular an igniter for a gas generator which is absolutely gas-tight and fluid-tight, has a lower weight compared with the known igniters and owing to the use of a continuous manufacturing process can be produced at a more favorable cost.
  • a device containing pyrotechnic material comprising a housing surrounding the pyrotechnic material, which device is wherein the housing is formed from glass and contains at least one metal duct with a heating wire or a spark gap.
  • the pyrotechnic material can be solid, liquid or gaseous.
  • the device is an igniter for a gas generator for use in a safety device for motor vehicles, which contains one or more heating wires or a spark gap for igniting the pyrotechnic material.
  • the pyrotechnic material can comprise a primary charge and a booster charge.
  • the primary charge takes up in an optimum manner the thermal energy arising through the activation of the igniter by means of a current impulse and ignites the booster charge.
  • the booster charge provides the necessary amount of energy-rich hot particles to ignite the propellant usually contained in the gas generator.
  • a particularly preferred embodiment of the device according to the invention contains an arrangement by which in the case of an undesired thermal action from the exterior, for example when the vehicle catches fire, an opening is exposed and thereby a controlled outflow can be ensured of the gas released by the self-ignition of the pyrotechnic material.
  • This arrangement preferably comprises a material which is crystalline or liquid at room temperature and is introduced at a suitable point into the glass housing of the device. The crystalline or liquid material alters its structure, its physical condition or its volume below the self-ignition temperature of the pyrotechnic material in such a way that when the undesired thermal action from the exterior occurs, the arrangement exposes the opening in the housing of the device which is closed by the arrangement.
  • the arrangement can comprise in particular an opening formed in the glass housing of the device, the opening being closed by a sealing means which may be formed particularly preferably from a low-melting-point metal alloy.
  • the sealing means may further be a liquid contained in a closed glass container, the glass container being introduced in the opening and integrally connected with the glass housing.
  • the device according to the invention can also be a gas generator for a safety arrangement in vehicles, which generator can be used in particular in belt tensioner units or airbag modules.
  • a further subject matter of the invention is a method of manufacturing a device containing a pyrotechnic material, the method comprising the following steps:
  • the metal duct with the spark gap or the heating wire can be introduced into the glass bulb through a first opening
  • the glass bulb can be heated in the region of the metal duct up to softening of the glass material and be closed in a gas-tight and fluid-tight manner for example by pressing or squeezing the softened glass.
  • Glass bulbs having melted-in metal ducts and the associated heating wires or spark gaps may also be utilized in the form of already prefabricated units.
  • the pyrotechnic material is introduced into the glass bulb through a further opening and this opening is likewise closed in a gas-tight and fluid-tight manner. The closing may be done for example by sealingly melting, pressing or squeezing.
  • the glass bulb is preferably heated up to softening near the region of the opening and is pulled apart so as to produce a reduction in cross-section of the opening and to facilitate the subsequent process of sealingly melting or squeezing off.
  • the glass bulb already has a narrowed cross-section in the region of the further opening.
  • the pyrotechnic material may be cooled beforehand in order to avoid self-ignition. However, selecting a suitable distance between the region to be heated and the pyrotechnic material may make the cooling of the pyrotechnic material unnecessary because of the low thermal conductivity of glass.
  • the device thus produced comprises an integral glass housing which completely surrounds the pyrotechnic material and into which the metal ducts for the connecting cables of the igniter are melted in like in the known halogen bulbs. The device is therefore absolutely gas-tight and fluid-tight.
  • the spark gap or the heating wire is surrounded by at least part of the pyrotechnic material, for example in the form of a squib containing the primary charge.
  • the metal duct with the spark gap or the heating wire and the part of the pyrotechnic material surrounding the spark gap or the heating wire is then introduced into a tubular glass bulb and the glass bulb is closed in the region of the metal duct in the manner as described above.
  • a self-ignition of the pyrotechnic material is avoided preferably by suitably selecting the distance between the pyrotechnic material and the heated area of the opening. If required, additional pyrotechnic material may be supplied to the glass bulb through a further opening and the opening may thereafter be closed by sealingly melting, pressing or squeezing, as described above.
  • the metal duct with the spark gap or the heating wire into the glass bulb provided with an opening and then to close the opening in the region of the metal duct in the manner as described above.
  • a glass bulb is provided, which is filled with the pyrotechnic material.
  • the metal ducts, equipped with a heating wire or a spark gap, for the connecting cables are introduced into the glass bulb.
  • the heating wire or the spark gap can already be surrounded by a squib containing the primary charge.
  • the glass bulb containing the pyrotechnic material may be cooled intensively by means of liquid air or liquid nitrogen and the glass bulb may be closed by melting.
  • the cooling step may be dispensed with if a suitable distance is kept between the pyrotechnic material and the heated area. This method, too, ensures a totally gas-tight and fluid-tight connection of the components of the igniter according to the invention.
  • the igniter connected electrically with the sensor is activated.
  • the current impulse originating from the sensor causes a burning through of the heating wire or the jumping of a spark in the spark gap.
  • the pyrotechnic material or preferably the primary charge surrounding the heating wire is ignited.
  • This primary charge in turn ignites the booster charge contained in the glass bulb.
  • the ignition of the primary charge and/or of the booster charge causes a distinct pressure increase to occur inside the glass bulb, which causes the latter to burst. In this way, the hot particles released by the burning of the booster charge can strike onto a pyrotechnic propellant contained in the gas generator and can cause it to ignite.
  • the gas generator is constructed according to the invention with a glass housing.
  • the ignition of the pyrotechnic material contained in the gas generator causes a pressure increase which causes the gas generator housing to burst.
  • the hot gases produced by the burning of the pyrotechnic material are thus released and can actuate the safety arrangement, for example a belt tensioner or airbag.
  • FIG. 1 is a diagrammatic view of an igniter according to the invention
  • FIG. 2 is a cross-sectional view of an igniter according to the invention.
  • FIG. 3 shows a gas generator according to the invention
  • FIG. 4 shows an igniter with an arrangement for exposing an opening
  • FIG. 5 shows a gas generator with an arrangement for exposing an opening
  • FIG. 6 is a cross-sectional view of a gas generator with an igniter according to the invention.
  • the igniter shown in FIGS. 1 and 2 comprises a housing 10 of glass. Metal ducts 14 are melted into the glass bulb or glass housing 10 in a gas-tight and fluid-tight manner. At the end of the metal ducts projecting into the housing, a heating wire or a spark gap 16 is arranged. The heating wire or the spark gap 16 is surrounded by a primary charge 18 . In the housing in addition a booster charge 20 can also be arranged, which receives and boosts the energy released by the primary charge 18 in the case of activation of the igniter.
  • the igniter is activated by a current impulse originating from an acceleration sensor (not shown here)
  • the heating wire or the spark gap 16 firstly ignites the primary charge 18 which in turn causes the burning of the booster charge 20 .
  • a pressure increase occurs in the housing 10 .
  • the housing 10 bursts and releases the energy-rich, hot particles formed by the burning of the booster charge.
  • the gas generator illustrated in FIG. 3 basically has the same structure as the igniter shown in FIGS. 1 and 2.
  • the housing 10 of the gas generator is likewise formed from glass.
  • Metal ducts 14 are melted into the glass bulb or glass housing 10 in a gas-tight and fluid-tight manner, which at their end projecting into the gas generator have a heating wire or a spark gap 16 .
  • the heating wire or the spark gap 16 are surrounded by a squib 22 which can contain a primary charge and also in addition a booster charge (not shown here).
  • a propellant 24 is introduced into the glass housing 10 of the gas generator, the activation of which propellant 24 leads to a bursting of the glass housing 10 and hence to a release of the hot gases formed by the burning of the propellant 24 .
  • a safety arrangement for example a belt tensioner unit or an airbag module, can be actuated.
  • FIG. 4 shows an igniter which basically has the same structure as the igniter illustrated in FIGS. 1 and 2.
  • an opening 26 is provided in the igniter housing 10 formed from glass, which opening 26 is closed by a sealing means 28 .
  • the sealing means 28 has the characteristic that with an action of heat from the exterior, below the self-ignition temperature of the pyrotechnic material introduced into the igniter, for example of the primary charge 18 or of the booster charge 20 , it alters its structure, its physical condition or its volume and thereby exposes the opening 26 .
  • sealing means for example a low-melting-point metal alloy can be used. The exposing of the opening ensures that the gases developing as a result of a self-ignition of the pyrotechnic material can flow away in a controlled manner.
  • the gas generator shown in FIG. 5 likewise has the opening 26 provided in the housing 10 formed from glass. As described above, this opening is closed by a sealing means 28 , for example a low-melting-point metal alloy.
  • the opening 26 or the sealing means 28 can be arranged at any desired point on the housing 10 . It is also conceivable that a thermal action from the exterior and the change to the structure, the physical condition or the volume of the sealing means connected therewith, leads not only to an exposing of the opening 26 but also to a partial destruction of the housing 10 . Thereby, the surface area of the opening available for the outflow of the gas produced as a result of the self-ignition of the propellant is enlarged.
  • a plurality of openings 26 closed by the sealing means 28 , can be provided in the housing 10 a plurality of openings 26 , closed by the sealing means 28 , can be provided.
  • FIG. 6 shows an example for application of a gas generator including an igniter according to the invention inserted in the gas generator.
  • the gas generator illustrated here comprises a housing 30 formed of conventional materials such as aluminum or steel and a base part 32 closing off the housing.
  • the base part may be made of plastic.
  • an O-ring 34 is arranged which holds the housing 30 in position in the nature of a latch. Further latching means may be provided on the outer periphery of the base part 32 for holding the housing in place.
  • an igniter according to the invention is inserted in the upper part of the base part 32 , between the O-ring 34 .
  • This igniter has the same structure as the igniter shown in FIGS. 1 and 2, i.e. it consists of a housing 10 which is entirely formed from glass and has metal ducts 14 melted into it in a gas-tight and fluid-tight manner.
  • the metal ducts 14 comprise a heating wire 16 at their ends projecting into the glass housing 10 of the igniter.
  • the heating wire may also be replaced by a spark gap in the known manner.
  • the heating wire 16 is surrounded by a primary charge 18 which in turn is in contact with a booster charge 20 .
  • the metal ducts 14 are connected with the connecting cables 36 for the igniter.
  • the gas generator illustrated in FIG. 6 may be used in belt tensioner units, for example.
  • the igniter When the igniter is activated via the igniter connecting cables 36 , the heating wire 16 will fuse and thus ignite the pyrotechnic material 18 , 20 contained in the glass housing 10 of the igniter.
  • the increase in pressure brought about by the burning of the pyrotechnic material 18 , 20 causes the glass bulb of the igniter to burst and releases the housing 30 of the gas generator from its locked position.
  • the displacement of the housing 30 may be transferred in a known manner to a linear drive for a belt tensioner via a shoulder 38 arranged on the outer periphery of the housing 30 .
  • igniter illustrated here is however not limited to gas generators for belt tensioner units. Rather, the igniter according to the invention may be utilized in any one of the known gas generators for safety arrangements, for instance in gas generators for driver's side impact protective device, front passenger impact protective devices and side impact protective devices.
  • a glass tube which has a first opening and a second opening located opposite the first opening.
  • the metal ducts which preferably consist of tungsten or a tungsten alloy, are then introduced into the glass tube through the first opening with the heating wire or forming a spark gap, and the glass tube is heated in the region of the first opening until the glass softens, and is pressed so as to melt the metal ducts into the glass tube in a gas-tight and fluid-tight manner.
  • the glass tube including the metal ducts melted into it may also be provided as a prefabricated component, such as is known, for example, from the production of halogen bulbs.
  • the pyrotechnic material is introduced into the glass bulb through the second opening.
  • the introduction of the pyrotechnic material may be performed in a plurality of steps which may be interrupted by drying stages. In this way it is also possible to introduce different pyrotechnic materials and to make the characteristics of the device suitable for any specifically desired purpose of application.
  • the glass bulb containing the pyrotechnic material is sealingly melted in the region of the second opening.
  • the glass bulb already has a narrowed cross-section in this region, so that the step of sealingly melting may be effected by heating and pulling the glass bulb apart in the region of the narrowed cross-section.
  • a cooling of the remaining portions of the glass bulb or of the pyrotechnic material may be done without due to the poor thermal conductivity of glass.
  • the igniter according to the invention ensures that the pyrotechnic material contained inside it is sealed in an absolutely gas-tight and fluid-tight manner and thus increases the functional reliability of the particular gas generator or safety arrangement concerned.
  • the application of a simplified and continuous manufacturing method allows a production of the igniter according to the invention at a favorable cost.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Air Bags (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Automotive Seat Belt Assembly (AREA)
US09/756,627 1998-04-20 2001-01-08 Device containing pyrotechnic material and method of manufacturing said device Abandoned US20010000862A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US09/756,627 US20010000862A1 (en) 1998-04-20 2001-01-08 Device containing pyrotechnic material and method of manufacturing said device

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE29807096U DE29807096U1 (de) 1998-04-20 1998-04-20 Pyrotechnisches Material enthaltende Vorrichtung
DE29807096.0 1998-04-20
US29254699A 1999-04-15 1999-04-15
US09/756,627 US20010000862A1 (en) 1998-04-20 2001-01-08 Device containing pyrotechnic material and method of manufacturing said device

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
US29254699A Division 1998-04-20 1999-04-15

Publications (1)

Publication Number Publication Date
US20010000862A1 true US20010000862A1 (en) 2001-05-10

Family

ID=8055988

Family Applications (1)

Application Number Title Priority Date Filing Date
US09/756,627 Abandoned US20010000862A1 (en) 1998-04-20 2001-01-08 Device containing pyrotechnic material and method of manufacturing said device

Country Status (8)

Country Link
US (1) US20010000862A1 (de)
EP (1) EP0952045B1 (de)
JP (1) JPH11325798A (de)
KR (1) KR19990083299A (de)
BR (1) BR9901369A (de)
DE (2) DE29807096U1 (de)
ES (1) ES2200432T3 (de)
ZA (1) ZA992764B (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030217663A1 (en) * 2002-05-27 2003-11-27 Trw Occupant Restraint Systems Gmbh & Co. Kg Method of producing a device containing pyrotechnical material and device obtainable by this method
CN104859579A (zh) * 2015-05-28 2015-08-26 合肥江淮太航常青汽车安全系统有限公司 一种安全气囊系统点火器
CN113168993A (zh) * 2018-11-16 2021-07-23 奥托立夫开发公司 具有塑料壳体的烟火装置

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29921493U1 (de) 1999-12-07 2000-04-13 TRW Occupant Restraint Systems GmbH & Co. KG, 73553 Alfdorf Zünder und Gasgenerator zur Verwendung in Rückhaltesystemen für Fahrzeuginsassen
DE19962146A1 (de) * 1999-12-22 2001-09-20 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Glaskolbenzünder-Rohform
DE102004004748A1 (de) * 2003-03-08 2004-09-23 Dynamit Nobel Ais Gmbh Automotive Ignition Systems Glasdurchführung für einen pyroelektrischen Anzünder
JP6867897B2 (ja) * 2017-06-29 2021-05-12 株式会社ダイセル 封止構造
JP7219193B2 (ja) * 2019-09-04 2023-02-07 日本化薬株式会社 ガス発生器

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Publication number Priority date Publication date Assignee Title
US3955505A (en) 1950-05-31 1976-05-11 The United States Of America As Represented By The United States Energy Research And Development Administration Detonating apparatus
US3670925A (en) 1969-10-28 1972-06-20 Atlas Chem Ind Explosively activated glass valve
DE3837332A1 (de) 1988-11-03 1990-05-10 Kostal Leopold Gmbh & Co Kg Sprengkapsel
US5404263A (en) * 1992-08-27 1995-04-04 Oea, Inc. All-glass header assembly used in an inflator system
DE4236729A1 (de) 1992-10-30 1994-05-05 Dynamit Nobel Ag Zünd- bzw. Anzündpille
ZA948566B (en) * 1993-11-18 1995-05-18 Ici America Inc Airbag igniter and method of manufacture
DE4435319A1 (de) 1994-10-01 1996-04-04 Temic Bayern Chem Airbag Gmbh Anzündeinheit für einen Gasgenerator eines passiven Rückhaltesystems
US5932832A (en) * 1996-04-15 1999-08-03 Autoliv Asp, Inc. High pressure resistant initiator with integral metal oxide varistor for electro-static discharge protection
US5695215A (en) * 1996-04-24 1997-12-09 Trw Inc. Fill tube for air bag inflator

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030217663A1 (en) * 2002-05-27 2003-11-27 Trw Occupant Restraint Systems Gmbh & Co. Kg Method of producing a device containing pyrotechnical material and device obtainable by this method
US6935241B2 (en) * 2002-05-27 2005-08-30 Trw Occupant Restraint Systems Gmbh & Co. Kg Method of producing a device containing pyrotechnical material and device obtainable by this method
CN104859579A (zh) * 2015-05-28 2015-08-26 合肥江淮太航常青汽车安全系统有限公司 一种安全气囊系统点火器
CN113168993A (zh) * 2018-11-16 2021-07-23 奥托立夫开发公司 具有塑料壳体的烟火装置

Also Published As

Publication number Publication date
EP0952045A3 (de) 2001-05-16
DE59905909D1 (de) 2003-07-17
EP0952045B1 (de) 2003-06-11
BR9901369A (pt) 2000-01-25
ZA992764B (en) 1999-10-19
DE29807096U1 (de) 1998-08-20
KR19990083299A (ko) 1999-11-25
JPH11325798A (ja) 1999-11-26
EP0952045A2 (de) 1999-10-27
ES2200432T3 (es) 2004-03-01

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