Patents by Inventor Martin Oberstarr

Martin Oberstarr 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: 11766988
    Abstract: The invention relates to a hybrid gas generator (10) which comprises a compressed gas chamber (20) and an igniting unit (30), wherein the compressed gas chamber (20) is closed by a first igniter-side bursting membrane (21) and a second bursting membrane (22). According to the invention, a first, rapidly burning-off pyrotechnic agent (51) and a second pyrotechnic agent (52) burning off slowly in comparison to the first pyrotechnic agent (51) are located in the hybrid gas generator (10), wherein the second bursting membrane (22) is openable by positive pressure which can be generated in the compressed gas chamber (20) and the first pyrotechnic agent (51) is separated from the second pyrotechnic agent (52) in such a manner that the positive pressure in the compressed gas chamber (20) for opening the second bursting membrane (22) can be generated by the first pyrotechnic agent (51).
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: September 26, 2023
    Assignee: TRW AIRBAG SYSTEMS GMBH
    Inventors: Christian Jung, Sebastian Bierwirth, Johannes Ebner, Hans-Peter Neumayer, Martin Oberstarr, Daniel Hillmann, Uta Isenmann, Detlef Last
  • Patent number: 11155234
    Abstract: The invention relates to an inflator (10) comprising an ignition unit (30) having an igniter (31), a chamber (20) arranged axially downstream of the ignition unit (30) and a diffuser chamber (40) arranged axially downstream of the chamber (20) which is comprised by a diffuser (42), wherein a combustion chamber screen (50) having an igniter-side end (51) and a diffuser-side end (52) is disposed in the chamber (20), the combustion chamber screen (50) being tapered, especially conically, in the longitudinal direction (L) of the inflator (10) from the igniter (31) toward the diffuser (42).
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: October 26, 2021
    Assignee: TRW AIRBAG SYSTEMS GMBH
    Inventors: Sebastian Bierwirth, Johannes Ebner, Martin Oberstarr
  • Publication number: 20190359166
    Abstract: The invention relates to a hybrid gas generator (10) which comprises a compressed gas chamber (20) and an igniting unit (30), wherein the compressed gas chamber (20) is closed by a first igniter-side bursting membrane (21) and a second bursting membrane (22). According to the invention, a first, rapidly burning-off pyrotechnic agent (51) and a second pyrotechnic agent (52) burning off slowly in comparison to the first pyrotechnic agent (51) are located in the hybrid gas generator (10), wherein the second bursting membrane (22) is openable by positive pressure which can be generated in the compressed gas chamber (20) and the first pyrotechnic agent (51) is separated from the second pyrotechnic agent (52) in such a manner that the positive pressure in the compressed gas chamber (20) for opening the second bursting membrane (22) can be generated by the first pyrotechnic agent (51).
    Type: Application
    Filed: November 20, 2017
    Publication date: November 28, 2019
    Inventors: Christian Jung, Sebastian Bierwirth, Johannes Ebner, Hans-Peter Neumayer, Martin Oberstarr, Daniel Hillmann, Uta Isenmann, Detlef Last
  • Publication number: 20190291684
    Abstract: The invention relates to an inflator (10) comprising an ignition unit (30) having an igniter (31), a chamber (20) arranged axially downstream of the ignition unit (30) and a diffuser chamber (40) arranged axially downstream of the chamber (20) which is comprised by a diffuser (42), wherein a combustion chamber screen (50) having an igniter-side end (51) and a diffuser-side end (52) is disposed in the chamber (20), the combustion chamber screen (50) being tapered, especially conically, in the longitudinal direction (L) of the inflator (10) from the igniter (31) toward the diffuser (42).
    Type: Application
    Filed: November 8, 2017
    Publication date: September 26, 2019
    Inventors: Sebastian Bierwirth, Johannes Ebner, Martin Oberstarr
  • Patent number: 10336289
    Abstract: The invention relates to a hybrid inflator (10) comprising a combustion chamber (20) and a pressure gas tank (30), wherein in the idle state of the hybrid inflator (10) an outlet opening (31) of the pressure gas tank (30) is closed by a bursting element (32) which in the case of function of the hybrid inflator (10) can be destroyed by means of a penetration element (40), wherein a mixing chamber (70) is formed between the pressure gas tank (30) and the combustion chamber (20). In accordance with the invention, between the combustion chamber (20) and the mixing chamber (70) at least in portions a partition wall (80) having a combustion chamber side (81) and a mixing chamber side (82) is formed, wherein the partition wall (80) includes at least one combustion chamber opening (85) which in the idle state of the hybrid inflator (10) is closed by a cover (88) formed on the mixing chamber side (82) of the partition wall (80).
    Type: Grant
    Filed: February 3, 2017
    Date of Patent: July 2, 2019
    Assignee: TRW AIRBAG SYSTEMS GMBH
    Inventors: Johannes Ebner, Sebastian Bierwirth, Martin Oberstarr, Detlef Last
  • Publication number: 20170232923
    Abstract: The invention relates to a hybrid inflator (10) comprising a combustion chamber (20) and a pressure gas tank (30), wherein in the idle state of the hybrid inflator (10) an outlet opening (31) of the pressure gas tank (30) is closed by a bursting element (32) which in the case of function of the hybrid inflator (10) can be destroyed by means of a penetration element (40), wherein a mixing chamber (70) is formed between the pressure gas tank (30) and the combustion chamber (20). In accordance with the invention, between the combustion chamber (20) and the mixing chamber (70) at least in portions a partition wall (80) having a combustion chamber side (81) and a mixing chamber side (82) is formed, wherein the partition wall (80) includes at least one combustion chamber opening (85) which in the idle state of the hybrid inflator (10) is closed by a cover (88) formed on the mixing chamber side (82) of the partition wall (80).
    Type: Application
    Filed: February 3, 2017
    Publication date: August 17, 2017
    Inventors: Johannes Ebner, Sebastian Bierwirth, Martin Oberstarr, Detlef Last
  • Publication number: 20120292293
    Abstract: A method of manufacturing an inflator comprises the following steps: Providing a casing (12) that includes a tubular connecting portion (10) having a cylindrical wall (14), providing a closing member (19) that includes a closing portion (18) having a cylindrical contact surface (20) the cross-section of which has small oversize or undersize compared to the cross-section of the connecting portion (10), and axially pressing the closing member (19) into or onto the connecting portion (10) while simultaneously supplying electric current which flows between the cylindrical wall (14) and the contact surface (20) so that the closing member (19) is pressure-welded with the connecting portion (10).
    Type: Application
    Filed: April 19, 2012
    Publication date: November 22, 2012
    Inventors: Christian Bibo, Rainer Eggerdinger, Karl Englbrecht, Thomas Nobach, Martin Oberstarr, Johann Osl, Martin Sedlmeier, Stefan Siglreithmaier, Oskar Sponfeldner