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US5467715A Expired / Lapsed US ⏱️ 0.0 years remaining

Gas generant compositions

Assignee: Autoliv ASP Inc
•
Filing: 1994-03-08
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Granted: 1995-11-21
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Expires: 2014-03-08
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Abstract

Abstract A gas generant composition contains as a fuel a mixture of a major portion of a triazole or tetrazole and a minor portion of a water soluble fuel; and an oxidizer component, at least 20 wt % of said oxidizer component being a transition metal oxide, such as CuO.

Inventors

  • 👤 Robert D. Taylor
  • 👤 Thomas M. Deppert
  • 👤 Michael W. Barnes

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-07 20:20
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/06; C06B; C06B23/00; C06B23/009

Claims Analysis

Total Claims: 23
Claim 1
Independent Claim 111 words
A gas generant composition comprising between about 20 and about 40 wt % of fuel, said fuel comprising a tetrazole and/or triazole compound at between about 50 and about 85 wt % of said fuel and a water-soluble fuel at between about 15 and about 50 wt % of said fuel; between about 20 and about 80 wt % of oxidizer, at least about 20 wt % and up to 100% of said oxidizer being a transition metal oxide or mixture of transition metal oxides, the balance of said oxidizer being an alkali and/or alkaline earth metal nitrate, chlorate, perchlorate or mixture thereof; and, any balance comprising additional gas generant-compatible components.
Claim 2
Dependent Claim 111 words
A gas generant composition comprising between about 20 and about 40 wt % of fuel, said fuel comprising a tetrazole and/or triazole compound at between about 50 and about 85 wt % of said fuel and a water-soluble fuel at between about 15 and about 50 wt % of said fuel; between about 20 and about 80 wt % of oxidizer, at least about 20 wt % and up to 100% of said oxidizer being a transition metal oxide or mixture of transition metal oxides, the balance of said oxidizer being an alkali and/or alkaline earth metal nitrate, chlorate, perchlorate or mixture thereof; and, any balance comprising additional gas generant-compatible components.
Claim 3
Dependent Claim 21 words
A composition in accordance with claim 1 further comprising between about 0.2 and about 5 wt % of a binder material.
Claim 4
Dependent Claim 14 words
A composition in accordance with claim 2 wherein said binder material is molybdenum sulfide.
Claim 5
Dependent Claim 38 words
A composition in accordance with claim 3 wherein said oxidizer contains sufficient alkali metal nitrate to convert substantially all of the sulfur component of said molybdenum sulfide to alkali metal sulfate upon combustion of said gas generant composition.
Claim 6
Dependent Claim 14 words
A composition in accordance with claim 1 wherein said transition metal oxide is CuO.
Claim 7
Dependent Claim 25 words
A composition in accordance with claim 1 wherein in addition to said transition metal oxide, said oxidizer includes an alkali and/or alkaline earth metal nitrate.
Claim 8
Dependent Claim 37 words
A composition in accordance with claim 1 wherein said water soluble fuel is selected from the group consisting of guanidine nitrate, aminoguanidine nitrate, diaminoguanidine nitrate, semicarbazide nitrate, triaminoguanidine nitrate, ethylenediamine dinitrate, hexamethylene tetramine dinitrate, and mixtures thereof.
Claim 9
Dependent Claim 15 words
A composition in accordance with claim 7 wherein said water soluble fuel is guanidine nitrate.
Claim 10
Dependent Claim 130 words
A gas generant composition comprising between about 20 and about 40 wt % of fuel, said fuel comprising a tetrazole and/or triazole compound selected from the group consisting of 5-amino tetrazole, tetrazole, bitetrazole, 1,2,4-triazole-5-one, and 3-nitro 1,2,4-triazole-5-one, said tetrazole and/or triazole compound comprising between about 50 and about 85 wt % of said fuel; and a water-soluble fuel at between about 15 and about 50 wt % of said fuel; between about 20 and about 80 wt % of oxidizer, at least about 20 wt % and up to 100% of said oxidizer being a transition metal oxide or mixture of transition metal oxides, the balance of said oxidizer being an alkali and/or alkaline earth metal nitrate, chlorate, perchlorate or mixture thereof; and, any balance comprising additional gas generant-compatible components.
Claim 11
Dependent Claim 130 words
A gas generant composition comprising between about 20 and about 40 wt % of fuel, said fuel comprising a tetrazole and/or triazole compound selected from the group consisting of 5-amino tetrazole, tetrazole, bitetrazole, 1,2,4-triazole-5-one, and 3-nitro 1,2,4-triazole-5-one, said tetrazole and/or triazole compound comprising between about 50 and about 85 wt % of said fuel; and a water-soluble fuel at between about 15 and about 50 wt % of said fuel; between about 20 and about 80 wt % of oxidizer, at least about 20 wt % and up to 100% of said oxidizer being a transition metal oxide or mixture of transition metal oxides, the balance of said oxidizer being an alkali and/or alkaline earth metal nitrate, chlorate, perchlorate or mixture thereof; and, any balance comprising additional gas generant-compatible components.
Claim 12
Dependent Claim 21 words
A composition in accordance with claim 9 further comprising between about 0.2 and about 5 wt % of a binder material.
Claim 13
Dependent Claim 14 words
A composition in accordance with claim 9 wherein said transition metal oxide is CuO.
Claim 14
Dependent Claim 25 words
A composition in accordance with claim 9 wherein in addition to said transition metal oxide, said oxidizer includes an alkali and/or alkaline earth metal nitrate.
Claim 15
Dependent Claim 37 words
A composition in accordance with claim 9 wherein said water soluble fuel is selected from the group consisting of guanidine nitrate, aminoguanidine nitrate, diaminoguanidine nitrate, semicarbazide nitrate, triaminoguanidine nitrate, ethylenediamine dinitrate, hexamethylene tetramine dinitrate, and mixtures thereof.
Claim 16
Dependent Claim 15 words
A composition in accordance with claim 9 wherein said water soluble fuel is guanidine nitrate.
Claim 17
Dependent Claim 108 words
A gas generant composition comprising between about 20 and about 40 wt % of fuel, said fuel comprising 5-amino tetrazole at between about 50 and about 85 wt % of said fuel and a water-soluble fuel at between about 15 and about 50 wt % of said fuel; between about 20 and about 80 wt % of oxidizer, at least about 20 wt % and up to 100% of said oxidizer being a transition metal oxide or mixture of transition metal oxides, the balance of said oxidizer being an alkali and/or alkaline earth metal nitrate, chlorate, perchlorate or mixture thereof; and, any balance comprising additional gas generant-compatible components.
Claim 18
Dependent Claim 108 words
A gas generant composition comprising between about 20 and about 40 wt % of fuel, said fuel comprising 5-amino tetrazole at between about 50 and about 85 wt % of said fuel and a water-soluble fuel at between about 15 and about 50 wt % of said fuel; between about 20 and about 80 wt % of oxidizer, at least about 20 wt % and up to 100% of said oxidizer being a transition metal oxide or mixture of transition metal oxides, the balance of said oxidizer being an alkali and/or alkaline earth metal nitrate, chlorate, perchlorate or mixture thereof; and, any balance comprising additional gas generant-compatible components.
Claim 19
Dependent Claim 21 words
A composition in accordance with claim 15 further comprising between about 0.2 and about 5 wt % of a binder material.
Claim 20
Dependent Claim 14 words
A composition in accordance with claim 15 wherein said transition metal oxide is CuO.
Claim 21
Dependent Claim 25 words
A composition in accordance with claim 15 wherein in addition to said transition metal oxide, said oxidizer includes an alkali and/or alkaline earth metal nitrate.
Claim 22
Dependent Claim 37 words
A composition in accordance with claim 15 wherein said water soluble fuel is selected from the group consisting of guanidine nitrate, aminoguanidine nitrate, diaminoguanidine nitrate, semicarbazide nitrate, triaminoguanidine nitrate, ethylenediamine dinitrate, hexamethylene tetramine dinitrate, and mixtures thereof.
Claim 23
Dependent Claim 15 words
A composition in accordance with claim 15 wherein said water soluble fuel is guanidine nitrate.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1998-11-20 1999-05-22 1999-11-21 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 2002-11-20 2003-05-22 2003-11-21 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2006-11-20 2007-05-22 2007-11-21 $7700.00 Window Closed / Lapsed

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