CA2299537C - Miniature inflator - Google Patents
Miniature inflator Download PDFInfo
- Publication number
- CA2299537C CA2299537C CA002299537A CA2299537A CA2299537C CA 2299537 C CA2299537 C CA 2299537C CA 002299537 A CA002299537 A CA 002299537A CA 2299537 A CA2299537 A CA 2299537A CA 2299537 C CA2299537 C CA 2299537C
- Authority
- CA
- Canada
- Prior art keywords
- propellant
- chamber
- inflator
- distal end
- apertures
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
- B60R21/268—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 release of stored pressurised gas
-
- 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
- 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
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/21—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components in vehicle side panels, e.g. doors
-
- 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
-
- 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
- B60R2021/0002—Type of accident
- B60R2021/0006—Lateral collision
Abstract
A gas generator of a side impact air bag inflator comprises a propellant chamber (18) having a proximate and distal end and a plurality of apertures (24) radially disposed about said distal end. Upon combustion of propellant within the chamber, longitudinal flow of the resulting gases is created by virtue of the distal end apertures (24).
Longitudinal gas flow through the chamber and then axially opposite through a filter (32) quickens the deployment rate, and improves the filtering and cooling capability of a smaller side impact inflator.
Longitudinal gas flow through the chamber and then axially opposite through a filter (32) quickens the deployment rate, and improves the filtering and cooling capability of a smaller side impact inflator.
Description
MINIATURE INPLATOR
BACKGROUND OF THE INVENTION
The present invention relates generally to side impact gas inflators for automotive passenger restraint systems, and more specifically, to a gas generator therein for improved cooling of combustion gases.
Certain features of a conventional forward-mounted air bag prevent its corresponding use as a side impact air bag.
The size of the inflator constitutes one primary difference. The speed of deployment is yet another difference; to meet design specifications, side impact 1o air bags must deploy significantly faster than forward-mounted air bags.
Generally speaking, side impact inflators that are stored within the seat are desirable. One drawback, however, is that the size of the inflator may significantly detract from the comfort of the seat. Because of this, many known forward-mounted inflator systems are simply to large and to slow to function as a seat-mounted side impact air bag. It is therefore desirable that the side impact inflator be substantially smaller and deploy significantly faster than its forward-mounted counterpart.
The size limitation may pose several disadvantages with regard to inflator operability. For example, heat, as well as particulates, in the combustion of gases produced by a pyrotechnic inflator of a vehicle occupant restraint system, must be attenuated prior to discharge thereof into the passenger compartment of the vehicle. While the industry has been successful in meeting current standards through the use of azide propellants, the advent of a new class of nonazide propellants has complicated the problem due to high combustion temperatures and dus to the characteristics of particulate combustion. A reduction in inflator size would likely correspond to a reduction in the size of the filter and heat sink within the gas generator. Because nonazide fuels, as compared to azide fuels, generally combust at greater temperatures, a more effective heat sink is required to shield the occupants 3 o from high heat exposure during air bag deployment. Additionally, the smaller inflator must be equipped with a filter that will effectively separate the solid and gaseous products of combustion. It is therefore further desirable that a smaller side air bag be equipped with a heat sink and filter every bit as effective as those within a conventional inflator.
Finally, the smaller air bag must deploy within 30 milliseconds or less to ensure occupant protection. Any longer deployment speed significantly detracts from the usefulness and protective capability of a side impact air bag.
Therefore, although a smaller inflator will often correspond to a smaller amount of propellant, the gas generating capabilities must sufficiently pressurize the air bag and must also result in deployment speeds faster than those associated l0 with larger inflators.
Thus, there is a requirement for a side impact air bag inflator that rapidly deploys and utilizes the many attributes of a non-azide propellant, and yet meets all current and projected standards for heat attenuation and particulate filtration from the gas produced.
SUMMARY OF THE INVENTION
The aforesaid problem is solved, in accordance with a preferred constructed embodiment of the present invention, by a gas generator
BACKGROUND OF THE INVENTION
The present invention relates generally to side impact gas inflators for automotive passenger restraint systems, and more specifically, to a gas generator therein for improved cooling of combustion gases.
Certain features of a conventional forward-mounted air bag prevent its corresponding use as a side impact air bag.
The size of the inflator constitutes one primary difference. The speed of deployment is yet another difference; to meet design specifications, side impact 1o air bags must deploy significantly faster than forward-mounted air bags.
Generally speaking, side impact inflators that are stored within the seat are desirable. One drawback, however, is that the size of the inflator may significantly detract from the comfort of the seat. Because of this, many known forward-mounted inflator systems are simply to large and to slow to function as a seat-mounted side impact air bag. It is therefore desirable that the side impact inflator be substantially smaller and deploy significantly faster than its forward-mounted counterpart.
The size limitation may pose several disadvantages with regard to inflator operability. For example, heat, as well as particulates, in the combustion of gases produced by a pyrotechnic inflator of a vehicle occupant restraint system, must be attenuated prior to discharge thereof into the passenger compartment of the vehicle. While the industry has been successful in meeting current standards through the use of azide propellants, the advent of a new class of nonazide propellants has complicated the problem due to high combustion temperatures and dus to the characteristics of particulate combustion. A reduction in inflator size would likely correspond to a reduction in the size of the filter and heat sink within the gas generator. Because nonazide fuels, as compared to azide fuels, generally combust at greater temperatures, a more effective heat sink is required to shield the occupants 3 o from high heat exposure during air bag deployment. Additionally, the smaller inflator must be equipped with a filter that will effectively separate the solid and gaseous products of combustion. It is therefore further desirable that a smaller side air bag be equipped with a heat sink and filter every bit as effective as those within a conventional inflator.
Finally, the smaller air bag must deploy within 30 milliseconds or less to ensure occupant protection. Any longer deployment speed significantly detracts from the usefulness and protective capability of a side impact air bag.
Therefore, although a smaller inflator will often correspond to a smaller amount of propellant, the gas generating capabilities must sufficiently pressurize the air bag and must also result in deployment speeds faster than those associated l0 with larger inflators.
Thus, there is a requirement for a side impact air bag inflator that rapidly deploys and utilizes the many attributes of a non-azide propellant, and yet meets all current and projected standards for heat attenuation and particulate filtration from the gas produced.
SUMMARY OF THE INVENTION
The aforesaid problem is solved, in accordance with a preferred constructed embodiment of the present invention, by a gas generator
2 o comprising a propellant chamber having a propellant bed that is ignitable at a first end of the chamber and through which combustion proceeds to a second end of the chamber. The products formed from combustion are then forced radially out of the second end and flow longitudinally back towards the first end through a filter and heat sink assembly. The resulting gases are then forced out of inflation ports located in the generator housing at the first end of the generator. The generator comprises a plurality of apertures fixed at the second end of the propellant chamber. The chamber apertures fluidly communicate with the filter and heat sink assembly, thereby facilitating longitudinal flow of the combustion gases down through the propellant chamber and then up 3o through the filter assembly.
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a cross-sectional view of an automotive air bag inflator constructed in accordance with the instant invention; and Fig. 2 is a sectional elevation of an automotive air bag inflator taken along the line 2-2 of Fig. 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS) As shown in Figs 1 and 2, in accordance with an exemplary constructed embodiment of the invention, an improved side impact air bag 1o inflator 10 comprises a housing 12, for example, an aluminum forging, having steel tubing comprising a first end closure 14 at one end, and a second end-closure 16 at the opposite end, both of which are crimped in place. An O-ring 17 provides proper sealing. A propellant chamber or tube 18 having a proximal end 20 and a distal end 22 is centrally and longitudinally disposed within housing 12. A plurality of exhaust perforations 24 are formed in the tube 18 only about the distal end 22.
The end-closure 16 accepts an electric igniter 26, which initiates combustion of the propellant 19 within propellant chamber 18 in a manner well known to one skilled in the art. A burst foil 28 may be provided along the inner 2 o edge of distal end 22 and over the apertures 24, thereby facilitating pressure buildup and flame front propagation through the propellant 19 disposed internally of the propellant chamber 18.
An autoignition assembly or self-igniter 30 is also disposed within propellant chamber 18 at distal end 22, and functions as an auxiliary igniter.
A
filter assembly 32 is positioned radially outwardly about the propellant chamber 18, and provides a flow path for the inflation gas to reach inflation ports 34.
In operation, the electric initiator 26 is fired into the propellant chamber 18. As gas is generated, it flows downward through the propellant bed to insure that all propellant in the chamber is ignited quickly. In the 3o preferred embodiment, the present invention may utilize relatively smaller propellant pellets. As shown by the arrows in Fig. 2, gas radially exits the
BRIEF DESCRIPTION OF THE DRAWINGS
Fig. 1 is a cross-sectional view of an automotive air bag inflator constructed in accordance with the instant invention; and Fig. 2 is a sectional elevation of an automotive air bag inflator taken along the line 2-2 of Fig. 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS) As shown in Figs 1 and 2, in accordance with an exemplary constructed embodiment of the invention, an improved side impact air bag 1o inflator 10 comprises a housing 12, for example, an aluminum forging, having steel tubing comprising a first end closure 14 at one end, and a second end-closure 16 at the opposite end, both of which are crimped in place. An O-ring 17 provides proper sealing. A propellant chamber or tube 18 having a proximal end 20 and a distal end 22 is centrally and longitudinally disposed within housing 12. A plurality of exhaust perforations 24 are formed in the tube 18 only about the distal end 22.
The end-closure 16 accepts an electric igniter 26, which initiates combustion of the propellant 19 within propellant chamber 18 in a manner well known to one skilled in the art. A burst foil 28 may be provided along the inner 2 o edge of distal end 22 and over the apertures 24, thereby facilitating pressure buildup and flame front propagation through the propellant 19 disposed internally of the propellant chamber 18.
An autoignition assembly or self-igniter 30 is also disposed within propellant chamber 18 at distal end 22, and functions as an auxiliary igniter.
A
filter assembly 32 is positioned radially outwardly about the propellant chamber 18, and provides a flow path for the inflation gas to reach inflation ports 34.
In operation, the electric initiator 26 is fired into the propellant chamber 18. As gas is generated, it flows downward through the propellant bed to insure that all propellant in the chamber is ignited quickly. In the 3o preferred embodiment, the present invention may utilize relatively smaller propellant pellets. As shown by the arrows in Fig. 2, gas radially exits the
-3-propellant chamber through the perforated holes 24 located only in the lower or axially outward portion of the combustion chamber relative to the initiator.
The gas then flows upward through the filter screen 32 to cool the gas and capture any solid particulates therein. The gas then exits the inflator via inflation ports 34.
In accordance with the present invention, an axial or longitudinal gas flow path is generated by virtue of the position of apertures 24. Once the propellant grains 19 are ignited at the first end of chamber 18, the small size of the propellant grains combined with the location of the apertures 24 accelerates 1o the heat and gases through the propellant bed and increases the rate of combustion. After combustion gases radially exit chamber 18 through apertures 24, the gases flow radially and longitudinally back through the filter 32. As such, the gases are sufficiently filtered and cooled prior to exiting the generator through the ports 34, even though the generator 10 is smaller than those normally utilized in conventional forward-mounted inflator systems.
It will be understood that the foregoing description of the preferred embodiment of the present invention is for illustrative purposes only, and that the various structural and operational features herein disclosed are susceptible to a number of modifications, none of which departs from the spirit and scope of the present invention as defined in the appended claims.
The gas then flows upward through the filter screen 32 to cool the gas and capture any solid particulates therein. The gas then exits the inflator via inflation ports 34.
In accordance with the present invention, an axial or longitudinal gas flow path is generated by virtue of the position of apertures 24. Once the propellant grains 19 are ignited at the first end of chamber 18, the small size of the propellant grains combined with the location of the apertures 24 accelerates 1o the heat and gases through the propellant bed and increases the rate of combustion. After combustion gases radially exit chamber 18 through apertures 24, the gases flow radially and longitudinally back through the filter 32. As such, the gases are sufficiently filtered and cooled prior to exiting the generator through the ports 34, even though the generator 10 is smaller than those normally utilized in conventional forward-mounted inflator systems.
It will be understood that the foregoing description of the preferred embodiment of the present invention is for illustrative purposes only, and that the various structural and operational features herein disclosed are susceptible to a number of modifications, none of which departs from the spirit and scope of the present invention as defined in the appended claims.
-4-
Claims
1. In an air bag inflator comprising an elongated cylindrical housing having a proximate end, a distal end and a first plurality of radially opening circumferentially-disposed apertures at the proximate end;
a propellant chamber disposed centrally of said housing comprising proximate and distal ends corresponding to the proximate and distal ends of said housing;
a second plurality of apertures radially disposed about the distal end of said propellant chamber for directing combustion gases radially from said chamber;
a propellant in said chamber;
means for igniting said propellant at the proximate end of said propellant chamber; and an elongated cylindrical filter coextensive with said housing and disposed radially outwardly of said propellant chamber and radially inwardly of an inner wall of said housing.
a propellant chamber disposed centrally of said housing comprising proximate and distal ends corresponding to the proximate and distal ends of said housing;
a second plurality of apertures radially disposed about the distal end of said propellant chamber for directing combustion gases radially from said chamber;
a propellant in said chamber;
means for igniting said propellant at the proximate end of said propellant chamber; and an elongated cylindrical filter coextensive with said housing and disposed radially outwardly of said propellant chamber and radially inwardly of an inner wall of said housing.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/916,137 US5944343A (en) | 1997-08-21 | 1997-08-21 | Miniature inflator |
US916,137 | 1997-08-21 | ||
PCT/US1998/015859 WO1999008907A1 (en) | 1997-08-21 | 1998-07-31 | Miniature inflator |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2299537A1 CA2299537A1 (en) | 1999-02-25 |
CA2299537C true CA2299537C (en) | 2005-10-11 |
Family
ID=25436757
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002299537A Expired - Fee Related CA2299537C (en) | 1997-08-21 | 1998-07-31 | Miniature inflator |
Country Status (7)
Country | Link |
---|---|
US (1) | US5944343A (en) |
EP (1) | EP1003653B1 (en) |
JP (1) | JP4170586B2 (en) |
KR (1) | KR20010022481A (en) |
CA (1) | CA2299537C (en) |
DE (1) | DE69834816T2 (en) |
WO (1) | WO1999008907A1 (en) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19903237B4 (en) * | 1999-01-27 | 2004-02-05 | Contec Chemieanlagen Gmbh | inflator |
WO2001011306A1 (en) * | 1999-08-05 | 2001-02-15 | Dynamit Nobel Gmbh Explosivstoff- Und Systemtechnik | Pyrotechnical ignition chain |
JP5050298B2 (en) | 2000-05-19 | 2012-10-17 | タカタ株式会社 | Gas generator |
US6709011B2 (en) * | 2001-02-21 | 2004-03-23 | Autoliv Asp, Inc. | Leak detection enhancing insert for an airbag inflator assembly |
US7185588B2 (en) * | 2003-12-05 | 2007-03-06 | Autoliv Asp, Inc. | Inflator devices having a moisture barrier member |
US7073820B2 (en) * | 2003-12-17 | 2006-07-11 | Automotive Systems Laboratory, Inc. | Inflator |
JP4280161B2 (en) | 2003-12-22 | 2009-06-17 | ダイセル化学工業株式会社 | Gas generator for airbag |
US7080854B2 (en) * | 2004-01-13 | 2006-07-25 | Automotive Systems Laboratory, Inc. | Pyrotechnic linear inflator |
US20050189747A1 (en) * | 2004-02-27 | 2005-09-01 | Khandhadia Paresh S. | Side curtain air bag device |
US7293798B2 (en) * | 2004-04-05 | 2007-11-13 | Automotive Systems Laboratory, Inc. | Pyrotechnic linear inflator |
FR2933350B1 (en) * | 2008-07-04 | 2010-08-13 | Livbag | GENERATOR OF GAS, REACTIVE GAS |
JP6184829B2 (en) * | 2013-10-11 | 2017-08-23 | 株式会社ダイセル | Gas generator |
JP2018103867A (en) * | 2016-12-27 | 2018-07-05 | 日本化薬株式会社 | Gas generator, plug for gas generator and production method of same plug |
Family Cites Families (29)
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US34615A (en) * | 1862-03-04 | Improvement in cartridges for fire-arms | ||
GB604489A (en) * | 1945-11-26 | 1948-07-05 | Edward Whitworth | Improvements in or relating to power gas generating cartridges |
US3739574A (en) * | 1969-12-03 | 1973-06-19 | Northrop Carolina Inc | Gas generator method and apparatus |
US3797854A (en) * | 1971-06-14 | 1974-03-19 | Rocket Research Corp | Crash restraint air generating inflation system |
CA1070351A (en) * | 1975-06-30 | 1980-01-22 | George W. Goetz | Fluid generator |
JPS52121242A (en) * | 1976-04-05 | 1977-10-12 | Daicel Chem Ind Ltd | Gas generator for gas bag |
US4296084A (en) * | 1979-10-29 | 1981-10-20 | Thiokol Corporation | Method of and apparatus for gas generation |
US4414902A (en) * | 1980-12-29 | 1983-11-15 | Ford Motor Company | Container for gas generating propellant |
US4561675A (en) * | 1984-04-02 | 1985-12-31 | Morton Thiokol, Inc. | Auto ignition device |
US4530516A (en) * | 1984-07-09 | 1985-07-23 | Morton Thiokol Inc. | Aluminum inflator with steel center-tie |
US4722551A (en) * | 1987-03-19 | 1988-02-02 | Morton Thiokol, Inc. | Initiator and method for the incorporation thereof in an inflator |
DE3835356A1 (en) * | 1988-10-17 | 1990-04-19 | Bayern Chemie Gmbh Flugchemie | GAS GENERATOR |
US5062367A (en) * | 1988-12-05 | 1991-11-05 | Nippon Koki, Co., Ltd. | Air bag inflation gas generator |
US5005486A (en) * | 1989-02-03 | 1991-04-09 | Trw Vehicle Safety Systems Inc. | Igniter for airbag propellant grains |
DE3920401A1 (en) * | 1989-06-22 | 1991-01-03 | Dynamit Nobel Ag | GAS GENERATOR FOR AN AIRBAG |
US4943086A (en) * | 1989-06-30 | 1990-07-24 | Morton Thiokol, Inc. | Gas bag inflator with a two welded joint housing |
DE3924500C1 (en) * | 1989-07-25 | 1990-12-20 | Bayern-Chemie Gesellschaft Fuer Flugchemische Antriebe Mbh, 8261 Aschau, De | |
US5033390A (en) * | 1989-11-13 | 1991-07-23 | Morton International, Inc. | Trilevel performance gas generator |
DE69105179T2 (en) * | 1990-09-06 | 1995-06-22 | Nippon Oils & Fats Co Ltd | Gas generator device. |
JPH04283148A (en) * | 1990-11-28 | 1992-10-08 | Dynamit Nobel Ag | Gas generator |
FR2673119B1 (en) * | 1991-02-22 | 1994-01-14 | Gantois Ets | FILTRATION DEVICE IN THE FORM OF A MONOBLOCK CARTRIDGE FOR PYROTECHNIC GENERATORS. |
DE4126527A1 (en) * | 1991-08-10 | 1993-02-25 | Diehl Gmbh & Co | GAS GENERATOR FOR AN AIRBAG |
EP0587900A4 (en) * | 1992-02-10 | 1995-09-27 | Daicel Chem | Linear gas generating agent and filter construction for gas generator |
US5397543A (en) * | 1993-06-21 | 1995-03-14 | Automotive Systems Laboratory, Inc. | Gas generator |
US5345875A (en) * | 1993-07-07 | 1994-09-13 | Automotive Systems Laboratory, Inc. | Gas generator |
US5551724A (en) * | 1993-09-14 | 1996-09-03 | Morton International, Inc. | Treatment of inflatable restraint system inflator particulate-containing gas with expanded metal |
US5564738A (en) * | 1995-08-10 | 1996-10-15 | Morton International, Inc. | Overflow channeling reaction canister assembly |
US5738373A (en) * | 1996-11-13 | 1998-04-14 | Automotive Systems Laboratory, Inc. | Gas inflator with ceramic foam balls |
US5829784A (en) * | 1997-02-13 | 1998-11-03 | General Dynamics Armament Systems, Inc. | Airbag inflator for vehicle occupant restraint apparatus |
-
1997
- 1997-08-21 US US08/916,137 patent/US5944343A/en not_active Expired - Fee Related
-
1998
- 1998-07-31 JP JP2000509614A patent/JP4170586B2/en not_active Expired - Fee Related
- 1998-07-31 EP EP98937297A patent/EP1003653B1/en not_active Expired - Lifetime
- 1998-07-31 WO PCT/US1998/015859 patent/WO1999008907A1/en active IP Right Grant
- 1998-07-31 KR KR1020007001066A patent/KR20010022481A/en not_active Application Discontinuation
- 1998-07-31 DE DE69834816T patent/DE69834816T2/en not_active Expired - Fee Related
- 1998-07-31 CA CA002299537A patent/CA2299537C/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP1003653B1 (en) | 2006-06-07 |
DE69834816T2 (en) | 2007-06-14 |
KR20010022481A (en) | 2001-03-15 |
JP4170586B2 (en) | 2008-10-22 |
US5944343A (en) | 1999-08-31 |
EP1003653A1 (en) | 2000-05-31 |
JP2001514991A (en) | 2001-09-18 |
DE69834816D1 (en) | 2006-07-20 |
WO1999008907A1 (en) | 1999-02-25 |
CA2299537A1 (en) | 1999-02-25 |
EP1003653A4 (en) | 2003-04-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |