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특허 상세정보

Selective non-catalytic reduction (SNCR) of toxic gaseous effluents

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) D03D-023/00   
미국특허분류(USC) 149/108.4
출원번호 UP-0638606 (2000-08-15)
등록번호 US-7575648 (2009-08-31)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    L.C. Begin & Associates, PLLC.
인용정보 피인용 횟수 : 1  인용 특허 : 12
초록

Selective non-catalytic reducing (SNCR) compounds, independent of the gas generant composition, reduce the toxicity of effluent gases produced by combustion of nonazide gas generating compositions used to inflate vehicle occupant restraint systems. It is believed that reaction of the NH2 radical (formed from the SNCR compound) with NO in the combustion gas forms N2 thereby decreasing the concentration of toxic nitrogen oxides therein. Heterogeneous placement of the reducing compound proximate to the gas generant bed within a gas generator ensures intima...

대표
청구항

We claim: 1. A vehicle occupant restraint system comprising: an inflatable air bag; a gas generator for inflating said air bag; a nitrogen-containing gas generant composition within said gas generator that forms nitrogen oxide and/or nitrogen dioxide upon combustion thereof; and a selective non-catalytic reducing compound placed within said gas generator in heterogeneous relation to said gas generant composition, wherein said selective non-catalytic reducing compound is selected from the group consisting of ammonium salts and amine-containing compounds,...

이 특허에 인용된 특허 (12)

  1. Poole, Donald R.. Azide-free gas generant composition with easily filterable combustion products. USP1991075035757.
  2. Highsmith Thomas K. (North Ogden UT) Blau Reed J. (Richmond UT) Lund Gary K. (Ogden UT). Bitetrazoleamine gas generant compositions. USP1997105682014.
  3. Poole Donald R. (Woodinville WA). Composition for controlling oxides of nitrogen. USP1992085139588.
  4. Blomquist Harold R.. Cool burning gas generating composition. USP2000116143104.
  5. Cabrera Raul. Filtration system for gas generators. USP2000056065774.
  6. Pacanowsky Eugene J. (Elkton MD) Martino Eugene A. (Newark DE). Gas generating compositions containing ammonium sulfate acceleration force desensitizer. USP1976113993514.
  7. Gibbons Francis X. ; Huhmann Alexander L. ; Wallace Albert J.. Hybrid SCR/SNCR process. USP1998125853683.
  8. Chawla Jogindar M. (Ettlingen DEX) von Bergman ; deceased Joachim (late of Mulheim/Ruhr DEX by Marina von Bergmann ; administratrix) Pachaly Reinhard (Kerpen DEX). Process for minimizing pollutant concentrations in combustion gases. USP1995125478542.
  9. Burns Sean P. ; Khandhadia Paresh S.. Smokeless gas generant compositions. USP2000066074502.
  10. Katzakian ; Jr. Arthur ; Cheung Henry ; Grix Charles E. ; McGehee Donald C.. Solid solution vehicle airbag clean gas generator propellant. USP1998125847315.
  11. Poole Donald R. (South Colby WA) Holland Gary F. (Snohomish WA) Wolf Nicholas A. (Renton WA) Wilson Michael A. (Bothell WA). Thermally stable gas generating composition. USP1996085545272.
  12. Khandhadia Paresh S. ; Burns Sean P.. Thermally stable nonazide automotive airbag propellants. USP2001106306232.

이 특허를 인용한 특허 피인용횟수: 1

  1. Hordos, Deborah L.. Gas generator. USP2017019556078.