Patents by Inventor Karsten Schwuchow

Karsten Schwuchow 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).

  • Patent number: 9879952
    Abstract: An igniter carrier (4) for an igniter unit (1), particularly for a gas generator, including a first receptacle section (8) for an igniter (2), a second receptacle section (9) and a connecting section (7) for attaching the igniter unit (1), wherein the igniter carrier (4) is prefabricated from a plurality of individual parts joined together and can be assembled in an assembly process as an individual part (4) of an assembly (1) together with an igniter (2) and a connector part (3) is provided. An igniter unit (1), particular for a gas generator, including such an igniter carrier (4), to an igniter (2) and to a method for producing such an igniter unit (1) is provided.
    Type: Grant
    Filed: September 20, 2013
    Date of Patent: January 30, 2018
    Inventor: Karsten Schwuchow
  • Publication number: 20160169640
    Abstract: The invention relates to an igniter carrier (4) for an igniter unit (1), particularly for a gas generator, comprising a first receptacle section (8) for an igniter (2), a second receptacle section (9) and a connecting section (7) for attaching the igniter unit (1), wherein the igniter carrier (4) is prefabricated from a plurality of individual parts joined together and can be assembled in an assembly process as an individual part (4) of an assembly (1) together with an igniter (2) and a connector part (3). The invention further relates to an igniter unit (1), particular for a gas generator, comprising such an igniter carrier (4), to an igniter (2) and to a method for producing such an igniter unit (1).
    Type: Application
    Filed: September 20, 2013
    Publication date: June 16, 2016
    Inventor: Karsten SCHWUCHOW
  • Patent number: 8585792
    Abstract: A filter for use in a gas generator of a safety arrangement in vehicles, has several layers of a woven metal fabric consisting of metal wires which are woven together. The woven metal fabric is preferably calendered, wound to form a roll, and pressed to form said filter.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: November 19, 2013
    Assignee: TRW Airbag Systems GmbH
    Inventors: Werner Zengerle, Simon Schreiber, Karsten Schwuchow
  • Patent number: 8047567
    Abstract: A gas generator, particularly for a vehicle occupant restraint system, has at least one igniter (12), a pyrotechnic solid propellant bed (22), a combustion chamber (20) containing the propellant bed (22) and at least one wall part (24), the wall part (24) being arranged in the combustion chamber (20), which is moved by a gas stream generated on activation of the gas generator into the region of the propellant bed (22) which is not yet ignited, and in its interior (25) defines a gas-directing channel reaching into the propellant bed (22).
    Type: Grant
    Filed: August 7, 2008
    Date of Patent: November 1, 2011
    Assignee: TRW Airbag Systems GmbH
    Inventors: Werner Zengerle, Simon Schreiber, Karsten Schwuchow, Josef Leitl, Juergen Klimas
  • Patent number: 7759597
    Abstract: For manufacturing a gas generator (1), a tubular body (10) having an opening (14) in a circumferential wall (12) and a housing part (16) having an attachment end (26) are provided. The geometry of a proximate rim (20) of the opening (14) and that of the attachment end (26) are coordinated such that a first contact region encircling the opening (14) and a second contact region on the attachment end (26), which is circumferentially closed, are formed. The housing part (16) is placed onto the tubular body (10) such that the first contact region is in contact with the second contact region. Then the body (10) and the housing part (16) are joined to each other by capacitor discharge welding.
    Type: Grant
    Filed: April 6, 2006
    Date of Patent: July 20, 2010
    Assignee: TRW Airbag Systems GmbH
    Inventors: Christian Bibo, Georg Pfister, Karsten Schwuchow, Thomas Kapfelsperger, Matthias Hennig
  • Publication number: 20090039628
    Abstract: A gas generator, particularly for a vehicle occupant restraint system, has at least one igniter (12), a pyrotechnic solid propellant bed (22), a combustion chamber (20) containing the propellant bed (22) and at least one wall part (24), the wall part (24) being arranged in the combustion chamber (20), which is moved by a gas stream generated on activation of the gas generator into the region of the propellant bed (22) which is not yet ignited, and in its interior (25) defines a gas-directing channel reaching into the propellant bed (22).
    Type: Application
    Filed: August 7, 2008
    Publication date: February 12, 2009
    Inventors: Werner Zengerle, Simon Schreiber, Karsten Schwuchow, Josef Leitl, Juergen Klimas
  • Publication number: 20080264022
    Abstract: A filter for use in a gas generator of a safety arrangement in vehicles, has several layers of a woven metal fabric consisting of metal wires which are woven together. The woven metal fabric is preferably calendered, wound to form a roll, and pressed to form said filter.
    Type: Application
    Filed: January 28, 2008
    Publication date: October 30, 2008
    Inventors: Werner Zengerle, Simon Schreiber, Karsten Schwuchow
  • Patent number: 7360787
    Abstract: A gas generator comprises an oblong outer housing and an elongated combustion chamber insert with a tubular wall arranged in the outer housing. The combustion chamber insert contains a solid propellant, has a first and a second axial end and is held in the outer housing. The tubular wall of the combustion chamber insert is fixed at both axial ends by a form fit in radial and axial direction to the outer housing.
    Type: Grant
    Filed: September 16, 2004
    Date of Patent: April 22, 2008
    Assignee: TRW Airbag Systems GmbH
    Inventors: Karl Englbrecht, Thomas Kapfelsperger, Karsten Schwuchow, Andreas Zauhar
  • Patent number: 7240916
    Abstract: 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: Grant
    Filed: December 15, 2003
    Date of Patent: July 10, 2007
    Assignee: TRW Airbag Systems GmbH
    Inventors: Sebastian Bierwirth, Achim Hofmann, Karsten Schwuchow
  • Patent number: 7152321
    Abstract: 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: Grant
    Filed: August 27, 2003
    Date of Patent: December 26, 2006
    Assignee: TRW Airbag Systems GmbH
    Inventors: Sebastian Bierwirth, Karsten Schwuchow, Achim Hofmann, Thomas Kapfelsperger
  • Patent number: 7147249
    Abstract: 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: Grant
    Filed: September 2, 2003
    Date of Patent: December 12, 2006
    Assignee: TRW Airbag Systems GmbH
    Inventors: Achim Hofmann, Sebastian Bierwirth, Karsten Schwuchow
  • Patent number: 7137339
    Abstract: 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: Grant
    Filed: August 28, 2003
    Date of Patent: November 21, 2006
    Assignee: TRW Airbag Systems GmbH
    Inventors: Sebastian Bierwirth, Karsten Schwuchow, Rolf Ruckdeschel
  • Publication number: 20060225280
    Abstract: For manufacturing a gas generator (1), a tubular body (10) having an opening (14) in a circumferential wall (12) and a housing part (16) having an attachment end (26) are provided. The geometry of a proximate rim (20) of the opening (14) and that of the attachment end (26) are coordinated such that a first contact region encircling the opening (14) and a second contact region on the attachment end (26), which is circumferentially closed, are formed. The housing part (16) is placed onto the tubular body (10) such that the first contact region is in contact with the second contact region. Then the body (10) and the housing part (16) are joined to each other by capacitor discharge welding.
    Type: Application
    Filed: April 6, 2006
    Publication date: October 12, 2006
    Inventors: Christian Bibo, Georg Pfister, Karsten Schwuchow, Thomas Kapfelsperger, Matthias Hennig
  • Patent number: 7017943
    Abstract: A gas generating device comprises a gas generator (10) which has an outer housing (12), and a gas conduit pipe (50) which is connected to the gas generator (10) and via which a gas flows out from the gas generator (10). The outer housing (12) has at least two openings (40, 42) via which the gas conduit pipe (50) is fastened to the outer housing (12) and through which the gas can flow out when the gas conduit pipe (50) is not installed. The gas generator (10) is neutral with respect to thrust without the gas conduit pipe (50) arranged on it. The gas conduit pipe (50) projects into the interior of the gas generator (10) via at least one of the openings (40, 42).
    Type: Grant
    Filed: July 30, 2003
    Date of Patent: March 28, 2006
    Assignee: TRW Airbag Systems GmbH
    Inventors: Karl Englbrecht, Karsten Schwuchow
  • Publication number: 20050056182
    Abstract: A gas generator comprises an oblong outer housing and an elongated combustion chamber insert with a tubular wall arranged in the outer housing. The combustion chamber insert contains a solid propellant, has a first and a second axial end and is held in the outer housing. The tubular wall of the combustion chamber insert is fixed at both axial ends by a form fit in radial and axial direction to the outer housing.
    Type: Application
    Filed: September 16, 2004
    Publication date: March 17, 2005
    Inventors: Karl Englbrecht, Thomas Kapfelsperger, Karsten Schwuchow, Andreas Zauhar
  • Publication number: 20040126290
    Abstract: 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: Application
    Filed: December 15, 2003
    Publication date: July 1, 2004
    Applicant: TRW Airbag Systems GmbH
    Inventors: Sebastian Bierwirth, Achim Hofmann, Karsten Schwuchow
  • Publication number: 20040070186
    Abstract: A method of producing a gas generator housing part of a thin-walled tube (22, 24) and a connecting piece laterally mounted thereto, is characterized by the following steps: a) providing a tube (22, 24) having a wall thickness (WS) which amounts to a maximum of 10% of a tube external diameter (D) and a minimum tensile strength which amounts to at least approximately 800 N/mm2; b) providing a connecting piece having an external diameter (do) which amounts to between 15% and 40% of said tube external diameter (D); c) aligning said connecting piece radially to said tube (22, 24) such that an end face (78) of said connecting piece faces an outer face of said tube (22, 24); d) joining said tube (22, 24) and said connecting piece by friction welding, with producing a relative rotation between said tube (22, 24) and said connecting piece and moving said tube (22, 24) and said connecting piece towards each other, f) a maximum welding time amounts to less than 1 sec, preferably less than 0.
    Type: Application
    Filed: August 27, 2003
    Publication date: April 15, 2004
    Applicant: TRW Airbag Systems GmbH
    Inventors: Sebastian Bierwirth, Karsten Schwuchow, Achim Hofmann, Thomas Kapfelsperger
  • Publication number: 20040068980
    Abstract: 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 openings (50, 58).
    Type: Application
    Filed: August 28, 2003
    Publication date: April 15, 2004
    Applicant: TRW Automotive Safety Systems GmbH
    Inventors: Sebastian Bierwirth, Karsten Schwuchow, Rolf Ruckdeschel
  • Publication number: 20040050281
    Abstract: 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: Application
    Filed: September 2, 2003
    Publication date: March 18, 2004
    Applicant: TRW Airbag Systems GmbH
    Inventors: Achim Hofmann, Sebastian Bierwirth, Karsten Schwuchow
  • Publication number: 20040026910
    Abstract: A gas generating device comprises a gas generator (10) which has an outer housing (12), and a gas conduit pipe (50) which is connected to the gas generator (10) and via which a gas flows out from the gas generator (10). The outer housing (12) has at least two openings (40, 42) via which the gas conduit pipe (50) is fastened to the outer housing (12) and through which the gas can flow out when the gas conduit pipe (50) is not installed. The gas generator (10) is neutral with respect to thrust without the gas conduit pipe (50) arranged on it. The gas conduit pipe (50) projects into the interior of the gas generator (10) via at least one of the openings (40, 42).
    Type: Application
    Filed: July 30, 2003
    Publication date: February 12, 2004
    Applicant: TRW Airbag Systems GmbH
    Inventors: Karl Englbrecht, Karsten Schwuchow