Patents by Inventor Sébastien Kermarrec

Sébastien Kermarrec 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).

  • Gas generator with two pyrotechnic charges
    Patent number: 8720946
    Abstract: A gas generator has two pyrotechnic charges in two chambers having openings for gas outlet to the outside. Only the first chamber is provided with an igniter for first charge. The chambers are separated by a third wall with a through hole for permanent gas communication, sealed in an initial state by a cap. The cap is configured to be broken under the pressure of the combustion gases from first charge to keep the hole opened permanently and allow the combustion gases from the first charge to go via the hole kept permanently opened from a first chamber to a second chamber, where these gases induce the combustion of charge.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: May 13, 2014
    Assignee: Autoliv Development AB
    Inventors: Gérald Prima, Sébastien Kermarrec, Maxime Lejeune, Gildas Clech
  • Gas generator and its manufacturing process
    Patent number: 8720945
    Abstract: A gas generator includes a pyrotechnic charge contained in a chamber delimited by a wall and by two transversal walls. At least one of the walls comprises at least one through hole. A covering sheet in the form of a box is located facing the through hole. A seal gasket is provided between the sheet and one of the walls. The seal gasket is positioned between the first tubular part of the covering sheet and the wall for ensuring the seal between the box and the wall towards the through hole.
    Type: Grant
    Filed: April 15, 2011
    Date of Patent: May 13, 2014
    Assignee: Autoliv Development AB
    Inventors: Gérald Prima, Sébastien Kermarrec, Maxime Lejeune, Philippe Moullec
  • GAS GENERATOR WITH TWO PYROTECHNIC CHARGES
    Publication number: 20130036934
    Abstract: A gas generator has two pyrotechnic charges in two chambers having openings for gas outlet to the outside. Only the first chamber is provided with an igniter for first charge. The chambers are separated by a third wall with a through hole for permanent gas communication, sealed in an initial state by a cap. The cap is configured to be broken under the pressure of the combustion gases from first charge to keep the hole opened permanently and allow the combustion gases from the first charge to go via the hole kept permanently opened from a first chamber to a second chamber, where these gases induce the combustion of charge.
    Type: Application
    Filed: April 15, 2011
    Publication date: February 14, 2013
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventors: Gérald Prima, Sébastien Kermarrec, Maxime Lejeune, Gildas Clech
  • GAS GENERATOR AND ITS MANUFACTURING PROCESS
    Publication number: 20130039814
    Abstract: A gas generator includes a pyrotechnic charge contained in a chamber delimited by a wall and by two transversal walls. At least one of the walls comprises at least one through hole. A covering sheet in the form of a box is located facing the through hole. A seal gasket is provided between the sheet and one of the walls. The seal gasket is positioned between the first tubular part of the covering sheet and the wall for ensuring the seal between the box and the wall towards the through hole.
    Type: Application
    Filed: April 15, 2011
    Publication date: February 14, 2013
    Applicant: AUTOLIV DEVELOPMENT AB
    Inventors: Gérald Prima, Sébastien Kermarrec, Maxime Lejeune, Philippe Moullec