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Gas generator

  • US 6,553,914 B2
  • Filed: 04/10/2001
  • Issued: 04/29/2003
  • Est. Priority Date: 04/10/2001
  • Status: Expired due to Term
First Claim
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1. A gas generator comprising:

  • an igniter subassembly comprising an igniter for receiving an electrical current and having one igniter charge for igniting a gas generant, the igniter is molded into a polymeric gas generator body having a combustion chamber wall, igniter subassembly further comprises a polymeric flange integrally formed with said polymeric gas generator body and extending radially therefrom; and

    a polymeric interior annular portion extending into a combustion chamber to substantially an end of a tubular side wall of the igniter, said polymeric annular portion forming an annular recess with an interior wall of said combustion chamber wall, said annular recess forming a part of said combustion chamber;

    a polymeric closure attached to said polymeric gas generator body;

    the combustion chamber for receiving a gas generant, said combustion chamber defined by said igniter, said polymeric closure and said polymeric combustion chamber wall; and

    one gas generant disposed in said combustion chamber, wherein the gas generant and the igniter charge are the only two pyrotechnic materials in the gas generator, wherein the igniter charge is isolated from the gas generant by a seal.

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