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Pyrotechnic tensioner

  • US 9,381,887 B2
  • Filed: 02/11/2013
  • Issued: 07/05/2016
  • Est. Priority Date: 02/14/2012
  • Status: Active Grant
First Claim
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1. A pyrotechnic pretensioner (10) for a safety system in a vehicle comprising:

  • an inflator (22) including a propelling charge (26) as well as an igniter (32);

    a housing (12) in which a pressure chamber (14) is provided into which gas from the inflator (22) flow and in which a piston is displaced by the gas, the housing (12) including metallic tube (38, 40); and

    an end piece (16) closing the pressure chamber (14) and having a wall extending towards the igniter (32) to form a chamber (24) for the propelling charge (26),wherein the end piece (16) connects one of the metallic tubes (38) to another of the metallic tubes (40).

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