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Cold-gas pyrotechnic generator

  • US 5,139,280 A
  • Filed: 06/27/1990
  • Issued: 08/18/1992
  • Est. Priority Date: 07/05/1989
  • Status: Expired due to Term
First Claim
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1. Cold-gas pyrotechnic generator (1) comprising a casing (2) of revolution having a central axis, said casing being provided with outer orifices (22) and including a base (10) and a cover (20) fastened together transversely, said base (10) and said cover (20) together forming:

  • an inner ignition channel (80) into which an ignition device (80) is placed;

    an annular intermediate chamber (70) employed as a combustion chamber and containing elements (40) of a gas-generating pyrotechnic composition;

    an annular peripheral chamber (60) employed as a cooling and filtering chamber, said peripheral chamber containing filtering means;

    wherein said intermediate chamber and said peripheral chamber are in communication through intermediate orifices (24) therebetween, and said peripheral chamber is in communication with the outside through said outer orifices (22), and wherein said casing (2) defines, between said inner ignition channel (80) and said intermediate chamber (70), a lateral opening (71) whose height is greater than the largest dimension of said elements of gas-generating pyrotechnic composition, wherein said lateral opening (72) is continuous about said central axis.

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