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Method of and apparatus for gas generation

  • US 4,296,084 A
  • Filed: 10/29/1979
  • Issued: 10/20/1981
  • Est. Priority Date: 10/29/1979
  • Status: Expired due to Term
First Claim
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1. A method of generating clean nitrogen gas in which most of the combustion residue product has been removed comprisinga. providing a combustible composition essentially 60-80% sodium azide, 2-26% ferric oxide, 2-26% molybdenum disulfide and 0-6% sulfur,b. placing said combustible composition in a combustion chamber having gas discharge orifices,c. raising the temperature of said combustible composition sufficiently to ignite it, andd. providing filtering means and cooling means between said combustible composition and said gas discharge orifices, said filtering means being selected for its compatibility with the combustion process and for its characteristic property at the combustion temperature of said composition of becoming less porous for a short interval during an early stage of the combustion function time thereby, during such interval, to increase the restrictive effect thereof and to retard the flow of combustion products out of said gas discharge orifices to allow such combustion products to be cooled by and condensed on said cooling means.

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