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특허 상세정보

Method for making a propellant having a relatively low burn rate exponent and high gas yield for use in a vehicle inflator

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) C06B-021/00    C06B-041/10    C06B-041/06   
미국특허분류(USC) 264/003.1 ; 264/003.2 ; 264/003.3 ; 149/019.7 ; 149/046 ; 149/060
출원번호 US-0406023 (1999-09-24)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Sheridan Ross P.C.
인용정보 피인용 횟수 : 10  인용 특허 : 30
초록

A method for making a propellant composition that results in a desirable gas output when combusted. The propellant can be part of an inflator used in a vehicle for inflating an air bag. The propellant has a relatively low burn rate exponent of no greater than about 0.7. The propellant is substantially dense, with the propellant having a density that is at least 85% of theoretical density. In making the propellant, its density can be reduced using a roller mill that flattens the propellant to a controlled thickness. The propellant preferably includes phas...

대표
청구항

[ What is claimed is:] [1.]1. A method for making propellant for use in an inflator located in a vehicle, comprising:providing phase-stabilized ammonium nitrate by integrating potassium nitrate with ammonium nitrate such that said ammonium nitrate and said potassium nitrate are fused together;mixing said phase-stabilized ammonium nitrate with at least fibrous cellulose to form a mixture, wherein said fibrous cellulose is between 6% and 12% by weight of said mixture of said phase-stabilized ammonium nitrate and said at least fibrous cellulose;forming a th...

이 특허에 인용된 특허 (30)

  1. Fleming Wayne C. (Glendale AZ). Ammonium nitrate propellants. USP1996125583315.
  2. Dillehay David R. (Marshall TX) Turner David W. (Marshall TX) Wingfield ; III Horace L. (Longview TX) Blackwell James A. (Shreveport LA). Composite gun propellant processing technique. USP1996015487851.
  3. Newman Kirk E. (Newport News VA) Gusack James A. (Williamsburg VA) Zehmer ; III John A. (Newport News VA). Continuous manufacture and casting. USP1992055114630.
  4. Lefumeux Alain,FRX ; Wiencek Dominique,FRX. Continuous process for solvent-free manufacture of heat-curable composite pyrotechnic products. USP1998115831339.
  5. Blomquist Harold R.. Cool burning ammonium nitrate based gas generating composition. USP2001056231702.
  6. Hamilton Brian K.. Dispensing fibrous cellulose material. USP2000096120626.
  7. Sudweeks Walter B. (Orem UT) Lawrence Lawrence D. (Sandy UT). Emulsion explosive manufacturing method. USP1989094867920.
  8. Scheffee Robert S. ; Wheatley Brian K.. Eutectic mixtures of ammonium nitrate and amino guanidine nitrate. USP1998035726382.
  9. Ciaramitaro David A. (Benson AZ) Moore Jack M. (Benson AZ). Explosive composition. USP1984034435232.
  10. Keith Donald G. (Mount Eliza AUX) Murray Robin S. (Ivanhoe AUX). Explosive composition and process with rheology modifying agent. USP1979024140561.
  11. Cartwright Richard V. (Sussex NJ). Extrudable gas generating propellants, method and apparatus. USP1992065125684.
  12. Rollyson Richard A. (Radford VA) Wesson Peter D. (Blacksburg VA) Zerwekh Paul S. (Radford VA). Extrusion, conveyance, and cutting system. USP1986044585600.
  13. Kaye John A. (Parkersburg WV). Fireplace starter composition. USP1989114878922.
  14. Knowlton Gregory D. ; Ludwig Christopher P. ; Haun Daniel. Gas generating compositions. USP1998075780768.
  15. Wilson Kimberly A. ; Wilson Michael A. ; Poole Donald R. ; Holland Gary F.. Low temperature autoigniting propellant composition. USP1999025866842.
  16. Krimmel Heinz (Korntal DEX) Muller-Sybrichs Manfred (Ditzinger DEX) Schilling Rolf (Gerlingen DEX) Weller Ulrich (Bietigheim-Bissingen DEX). Method and apparatus for protecting a screw extruder producing strand-shaped explosives and propellants. USP1990064931229.
  17. Mogendorf Klaus-Dieter (Waldkraiburg DEX) Miehling Wolfgang (Mhldorf am Inn DEX). Method and apparatus to prepare a tribasic propellat charge powder. USP1993115266242.
  18. Johnson ; Craig E. ; Dendor ; Paul F. ; Csanady ; Elmer R.. Method for making extruded, solventless, composite-modified double base propellant. USP1978074102953.
  19. Burns Sean P. ; Khandhadia Paresh S.. Nonazide gas generant compositions. USP1999025872329.
  20. Young Donald C. (Fullerton CA). Particulate high explosive of NH4NO3 - CaSO4 - sensitizer. USP1976053959044.
  21. Hamilton Brian K. (Littleton CO). Preparing air bag vehicle restraint device having cellulose containing sheet propellant. USP1995045403035.
  22. Mller Dietmar (Karlsruhe DEX). Process and apparatus for producing single- or multi-base propellants. USP1985064525313.
  23. Arni Paul (Hnibach CHX). Process for preparing a high power explosive, high power explosive produced thereby, and method for shaping a high power. USP1984014428786.
  24. Christmann Wolfgang (Bergisch-Gladbach-Paffrath DEX) Lindner Gerhard (Rosrath DEX) Lingens Paul (Odenthal DEX). Process for the production of compacted explosive devices for ammunition or explosive charges, especially those of a lar. USP1984064455914.
  25. Scheffee Robert S. ; Thibodeau Robert Lee ; Wheatley Brian K.. Pyrotechnic method of generating a particulate-free, non-toxic odorless and colorless gas. USP1998055747730.
  26. Menke Klaus (Bruchsal DEX) Bohnlein-Mauss Jutta (Speyer DEX) Schmid Helmut (Karlsruhe DEX) Bucerius Klaus M. (Karlsruhe DEX) Engel Walther (Woschbach DEX). Solid propellant based on phase-stabilized ammonium nitrate. USP1997015596168.
  27. Hamilton Brian K. ; Stang Peter L.. Substantially smoke-free and particulate-free inflator for inflatable safety restraint system. USP1999025868424.
  28. Holland Gary F. (Snohomish WA) Poole Donald R. (South Colby WA) Wolf Nicholas A. (Renton WA) Wilson Michael A. (Bothell WA). Thermally stable gas generating composition. USP1997065641938.
  29. 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.
  30. Howard, William M.. Triaminoguanidine nitrate-containing propellants. USP1983054381958.