Patents by Inventor Sebastian Bierwirth
Sebastian Bierwirth has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20170001593Abstract: A gas generator (10) comprises an outer housing, which has at (east two housing parts (12), which are connected to each other, in the form of a diffuser bowl (14) with outflow openings (16) towards the outside and a cover (20) directly connected to the diffuser bowl (14). Inside the gas generator (10), at least one first and one second combustion chamber (30, 36) are provided, wherein the first combustion chamber (30) is delimited by an inner wall (32) and the second combustion chamber (36) is located within the space delimited by the diffuser bowl (14) and the cover (20). The diffuser bowl (14) and/or the cover (20) comprise a section (24) that is shaped, in particular deep-drawn, into an indentation, forming at least partially a circumferential section of the inner wall (32).Type: ApplicationFiled: September 15, 2016Publication date: January 5, 2017Inventors: Sebastian Bierwirth, Fabien Cristoforetti, Dieter Sptizenberger
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Patent number: 9511738Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a closing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes a filter (46) and a combustion chamber component at least partially enclosing at least one of a combustion chamber (56) and a combustion chamber sleeve (60), wherein the filter (46) extends in a ring-shaped manner about the combustion chamber (56) and, at a position of its ring-shaped extension, includes a critical filter portion (120) which is closer to the combustion chamber component than the remaining filter areas situated at its ring-shaped extension, wherein the critical filter portion (120) has a reduced thickness compared to areas of the filter that are adjacent to the critical filter portion (120).Type: GrantFiled: November 3, 2015Date of Patent: December 6, 2016Assignee: TRW Airbag Systems GmbHInventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Hannes Nuiding, Thomas Schober, Josef Bommer, Tobias Breddermann, Dietmar Schwebel
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Patent number: 9487183Abstract: A gas generator (10) comprises an outer housing, which has at least two housing parts (12), which are connected to each other, in the form of a diffuser bowl (14) with outflow openings (16) towards the outside and a cover (20) directly connected to the diffuser bowl (14). Inside the gas generator (10), at least one first and one second combustion chamber (30, 36) are provided, wherein the first combustion chamber (30) is delimited by an inner wall (32) and the second combustion chamber (36) is located within the space delimited by the diffuser bowl (14) and the cover (20). The diffuser bowl (14) and/or the cover (20) comprise a section (24) that is shaped, in particular deep-drawn, into an indentation, forming at least partially a circumferential section of the inner wall (32).Type: GrantFiled: November 26, 2009Date of Patent: November 8, 2016Assignee: TRW Airbag Systems GmbHInventors: Sebastian Bierwirth, Fabien Cristoforetti, Dieter Spitzenberger
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Patent number: 9452729Abstract: An inflator, especially for a protective device in a vehicle, includes a diffuser (10) which preferably forms a substantially rotation-symmetric external housing of the inflator with a closing member (12). The diffuser (10) includes more than 12, preferably more than 14, further preferably 23 discharge orifices (78) arranged in a row. Moreover, the inflator exhibits a plurality of further peculiarities.Type: GrantFiled: September 27, 2011Date of Patent: September 27, 2016Assignee: TRW Airbag Systems GmbHInventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Hannes Nuiding, Thomas Schober, Josef Bommer, Tobias Breddermann, Dietmar Schwebel
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Publication number: 20160052484Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a closing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes a filter (46) and a combustion chamber component at least partially enclosing at least one of a combustion chamber (56) and a combustion chamber sleeve (60), wherein the filter (46) extends in a ring-shaped manner about the combustion chamber (56) and, at a position of its ring-shaped extension, includes a critical filter portion (120) which is closer to the combustion chamber component than the remaining filter areas situated at its ring-shaped extension, wherein the critical filter portion (120) has a reduced thickness compared to areas of the filter that are adjacent to the critical filter portion (120).Type: ApplicationFiled: November 3, 2015Publication date: February 25, 2016Inventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Hannes Nuiding, Thomas Schober, Josef Bommer, Tobias Breddermann, Dietmar Schwebel
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Publication number: 20160052485Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the locator with a dosing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes a circumferential wall (18, 22) which surrounds a combustion chamber (44) and a filter (46) which extends at least partially along the wall (16, 22), wherein the wall (16, 22) has at least one supporting portion (124) which constitutes an axial support for the filter (46) and is integrally formed with the wall (16, 22), and wherein either plural supporting portions (124) are formed by embossed beads, the heads being spaced apart from each other in circumferential direction, and wherein a supporting portion (124) is formed by a completely circumferential embossed bead.Type: ApplicationFiled: November 3, 2015Publication date: February 25, 2016Inventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Hannes Nuiding, Thomas Schober, Josef Bommer, Tobias Breddermann, Dietmar Schwebel
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Publication number: 20160052482Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a closing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes a combustion chamber sleeve (60) which at least partially encloses a combustion chamber (56) filled with fuel, wherein the combustion chamber sleeve (60) is designed such that it changes its shape by pressure formed during combustion of the fuel so as to release a discharge orifice (112) leading out of the combustion chamber (56) into a further combustion chamber (44) of the inflator, for a combustion gas formed during combustion of the fuel.Type: ApplicationFiled: November 3, 2015Publication date: February 25, 2016Inventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Hannes Nuiding, Thomas Schober, Josef Bommer, Tobias Breddermann, Dietmar Schwebel
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Publication number: 20160052483Abstract: An inflator for a protective device in a vehicle includes a diffuser (10) forming a substantially rotation-symmetric external housing of the inflator with a dosing member (12), wherein the diffuser (10) includes a plurality of discharge orifices (78) arranged in a row, and which are of circular shape. The inflator also includes an igniter sleeve (38) which at least partially encloses an igniter (34) and an igniter chamber (42) filled with a booster charge and is adjacent to a first combustion chamber (44) filled with fuel, wherein the igniter sleeve (38), related to a central axis B of the igniter sleeve (38), has overflow orifices (98) unevenly distributed in circumferential direction.Type: ApplicationFiled: November 3, 2015Publication date: February 25, 2016Inventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Hannes Nuiding, Thomas Schober, Josef Bommer, Tobias Breddermann, Dietmar Schwebel
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Publication number: 20160016529Abstract: An inflator as well as a method of manufacturing an inflator, a module including an inflator and an airbag module. In an inflator, especially for a protective device. In a vehicle, comprising plural components a sealant is applied in the area of abutting components, especially a sealant which adheres to both abutting components.Type: ApplicationFiled: August 25, 2015Publication date: January 21, 2016Inventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Franz Fuerstenberger, Hannes Nuiding, Dieter Leier, Georg Schoenhuber, Joerg Friedrich
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Patent number: 9139156Abstract: An inflator as well as a method of manufacturing an inflator, a module including an inflator and an airbag module. In an inflator, especially for a protective device in a vehicle, comprising plural components a sealant is applied in the area of abutting components, especially a sealant which adheres to both abutting components.Type: GrantFiled: September 29, 2009Date of Patent: September 22, 2015Assignee: TRW AIRBAG SYSTEMS GMBHInventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Franz Fuerstenberger, Hannes Nuiding, Dieter Leier, Georg Schoenhuber, Joerg Friedrich
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Publication number: 20130200600Abstract: An inflator, especially for a protective device in a vehicle, includes a diffuser (10) which preferably forms a substantially rotation-symmetric external housing of the inflator with a closing member (12). The diffuser (10) includes more than 12, preferably more than 14, further preferably 23 discharge orifices (78) arranged in a row. Moreover, the inflator exhibits a plurality of further peculiarities.Type: ApplicationFiled: September 27, 2011Publication date: August 8, 2013Applicant: TRW Airbag Systems GmbhInventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Hannes Nuiding, Thomas Schober, Josef Bommer, Tobias Breddermann, Dietmar Schwebel
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Publication number: 20110221176Abstract: A gas generator (10) comprises an outer housing, which has at least two housing parts (12), which are connected to each other, in the form of a diffuser bowl (14) with outflow openings (16) towards the outside and a cover (20) directly connected to the diffuser bowl (14). Inside the gas generator (10), at least one first and one second combustion chamber (30, 36) are provided, wherein the first combustion chamber (30) is delimited by an inner wall (32) and the second combustion chamber (36) is located within the space delimited by the diffuser bowl (14) and the cover (20).Type: ApplicationFiled: November 26, 2009Publication date: September 15, 2011Inventors: Sebastian Bierwirth, Fabien Cristoforetti, Dleter Spitzenberger
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Publication number: 20110101651Abstract: An inflator as well as a method of manufacturing an inflator, a module including an inflator and an airbag module. In an inflator, especially for a protective device in a vehicle, comprising plural components a sealant is applied in the area of abutting components, especially a sealant which adheres to both abutting components.Type: ApplicationFiled: September 29, 2009Publication date: May 5, 2011Inventors: Sebastian Bierwirth, Achim Hofmann, Hans-Peter Neumayer, Dieter Spitzenberger, Franz Fuerstenberger, Hannes Nuiding, Dieter Leier, Georg Schoenhuber, Joerg Friedrich
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Patent number: 7540241Abstract: A gas generator includes a generator housing (12), an igniter device mounting opening (18) which has an edge (22), an igniter device and a booster chamber (24) having a peripheral wall (26). The igniter device has a prefabricated igniter (16) sealed off towards the exterior, a booster charge (23) adjoining the igniter (16) and an injected plastic base (20). The edge (22) of the igniter device mounting opening (18) for fastening the igniter device to the generator housing (12) is embedded in the injected plastic base (20) during injecting. Connectors (14) leading to the igniter (16) are embedded into the plastic base (20) during injecting and the plastic base (20) continues in one piece into the booster chamber (24) by forming a peripheral wall (26) of the booster chamber (24) which the booster charge (23) directly adjoins.Type: GrantFiled: May 3, 2006Date of Patent: June 2, 2009Assignee: TRW Airbag Systems GmbHInventor: Sebastian Bierwirth
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Publication number: 20080022880Abstract: A gas generator, especially for a vehicle safety system, has a pyrotechnical igniter unit (22) and a holder (14) for the igniter unit (22). The igniter unit (22) is attached to the holder (14) in that the igniter unit (22) and the holder (14) are encapsulated together by one of injection molding and foaming of a plastic. The holder (14) has at least one passage opening (30, 38) for the plastic during the encapsulation by one of injection molding and foaming, the at least one opening being configured in such a way as to create a form-fitting anti-twist protection between the plastic (34) and the holder (14).Type: ApplicationFiled: July 30, 2007Publication date: January 31, 2008Inventors: Sebastian Bierwirth, Hans-Peter Neumayer, Dieter Spitzenberger
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Patent number: 7240916Abstract: A gas generator includes a housing, which has outflow openings for outflowing gas, and at least one destructible insulation foil which in a non-activated state of the gas generator closes at least one of the outflow opening so as to be moisture-tight. The insulation foil has a varying thickness. The varying thickness is provided by at least one thermally insulating foil layer with a varying thickness, which lies over a base layer.Type: GrantFiled: December 15, 2003Date of Patent: July 10, 2007Assignee: TRW Airbag Systems GmbHInventors: Sebastian Bierwirth, Achim Hofmann, Karsten Schwuchow
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Patent number: 7152321Abstract: A gas generator housing part is produced of a thin-walled tube having a wall thickness which amounts to a maximum of 10% of a tube external diameter and a minimum tensile strength which amounts to at least approximately 800 N/mm2, and a connecting piece having an external diameter which amounts to between 15% and 40% of the tube external diameter. After aligning the connecting piece radially to the tube such that an end face of the connecting piece faces an outer face of the tube, the tube and the connecting piece are joined by friction welding. A maximum welding time amounts to less than 1 second, preferably less than 0.3 second and a friction depth amounts to less than 80% of the wall thickness of the tube.Type: GrantFiled: August 27, 2003Date of Patent: December 26, 2006Assignee: TRW Airbag Systems GmbHInventors: Sebastian Bierwirth, Karsten Schwuchow, Achim Hofmann, Thomas Kapfelsperger
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Patent number: 7147249Abstract: A gas generator comprises an elongated outer housing (10) that has end faces and a side wall, at least three stages (12, 14, 16; 112, 114, 116, 118) which can be activated independently of each other, and for each stage (12, 14, 16; 112, 114, 116, 118) an associated igniter unit (32, 34, 36; 132, 134, 136, 138). The igniter units (32, 34, 36; 132, 134, 136, 138) are mounted laterally to the side wall of the outer housing (10).Type: GrantFiled: September 2, 2003Date of Patent: December 12, 2006Assignee: TRW Airbag Systems GmbHInventors: Achim Hofmann, Sebastian Bierwirth, Karsten Schwuchow
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Patent number: 7137339Abstract: A gas generator comprises an elongated, preferably tubular outer housing (10), at least one combustion chamber (26, 28) provided therein and filled with a solid propellant (30; 30?), and at least one igniter unit (16, 18) generating ignition gas for igniting the solid propellant (30; 30?). The igniter unit (16, 18) is arranged laterally and externally on the outer housing (10) in such a way and, in relation to the outer housing (10), a preferably radial ignition transfer opening (50, 58) is provided in the outer housing so that ignition gas generated in the igniter unit (16, 18) flows into the interior of the outer housing (10) via the ignition transfer 1 openings (50, 58).Type: GrantFiled: August 28, 2003Date of Patent: November 21, 2006Assignee: TRW Airbag Systems GmbHInventors: Sebastian Bierwirth, Karsten Schwuchow, Rolf Ruckdeschel
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Publication number: 20060254454Abstract: A gas generator includes a generator housing (12), an igniter device mounting opening (18) which has an edge (22), an igniter device and a booster chamber (24) having a peripheral wall (26). The igniter device has a prefabricated igniter (16) sealed off towards the exterior, a booster charge (23) adjoining the igniter (16) and an injected plastic base (20). The edge (22) of the igniter device mounting opening (18) for fastening the igniter device to the generator housing (12) is embedded in the injected plastic base (20) during injecting. Connectors (14) leading to the igniter (16) are embedded into the plastic base (20) during injecting and the plastic base (20) continues in one piece into the booster chamber (24) by forming a peripheral wall (26) of the booster chamber (24) which the booster charge (23) directly adjoins.Type: ApplicationFiled: May 3, 2006Publication date: November 16, 2006Inventor: Sebastian Bierwirth