Patents by Inventor Andreas Zehentmeier

Andreas Zehentmeier 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).

  • Pyrotechnic drive unit and method for the production of such a unit
    Patent number: 8596179
    Abstract: A pyrotechnic drive unit includes a cylinder tube (12) having an axial end (28), a piston (14) guided in the cylinder tube (12), a pyrotechnic igniter (16) which is adjacent to the piston (14) and constitutes the pyrotechnic drive, and a plastic part (18). The plastic part (18) is injection-molded to the igniter (16) and to the axial end (28) of the cylinder tube (12) so that it fastens the igniter (16) to the cylinder tube (12) and tightly closes the axial end (28) of the cylinder tube (12), the plastic part (18) engaging the piston (14) in an initial position of the drive unit (10).
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: December 3, 2013
    Assignee: TRW Airbag Systems GmbH
    Inventors: Ernst Enzmann, Silvia Michl, Achim Hofmann, Rolf Ruckdeschl, Peter Roemer, Andreas Zehentmeier
  • Pyrotechnic drive unit and method for the production of such a unit
    Publication number: 20080236436
    Abstract: A pyrotechnic drive unit includes a cylinder tube (12) having an axial end (28), a piston (14) guided in the cylinder tube (12), a pyrotechnic igniter (16) which is adjacent to the piston (14) and constitutes the pyrotechnic drive, and a plastic part (18). The plastic part (18) is injection-molded to the igniter (16) and to the axial end (28) of the cylinder tube (12) so that it fastens the igniter (16) to the cylinder tube (12) and tightly closes the axial end (28) of the cylinder tube (12), the plastic part (18) engaging the piston (14) in an initial position of the drive unit (10).
    Type: Application
    Filed: March 25, 2008
    Publication date: October 2, 2008
    Inventors: Ernst Enzmann, Silvia Michl, Achim Hofmann, Rolf Ruckdeschl, Peter Roemer, Andreas Zehentmeier
  • Gas generator
    Patent number: 6682708
    Abstract: The invention relates to a gas generator for generating gases, comprising a housing which has an interior space and at least one combustion chamber filled with a predetermined quantity of solid propellant. The propellant consists of a plurality of solid propellant parts arranged in the combustion chamber in an irregular manner. The compressed gas is stored in a predetermined quantity in the combustion chamber and the combustion chamber constructed as a pressure chamber sealed hermetically toward outside in a non-activated state of the gas generator.
    Type: Grant
    Filed: June 16, 2000
    Date of Patent: January 27, 2004
    Assignee: TRW Airbag Systems GmbH & Co. KG
    Inventors: Siegfried Zeuner, Achim Hofmann, Roland Schropp, Josef Werneth, Andreas Zehentmeier