US4376002A
Expired / Lapsed
US
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Multi-ingredient gas generators
Assignee: Orica Explosives Technology Pty Ltd
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Filing: 1981-04-21
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Granted: 1983-03-08
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Expires: 2001-04-21
Abstract
Abstract An improved nitrogen gas generating pyrotechnic composition is provided which consist of a stoichiometric mixture of an alkali metal azide or alkaline earth metal axide fuel and an oxidant consisting of a mixture of at least two metal oxides selected from the oxides of iron, silicon, manganese, tantalum, niobium and tin. The mixed metal oxides provide a synergistic effect and result in a composition having improved ignition delay time, burn rate and gas pressure as well as a reduction in toxic by-products and dust.
Inventors
- 👤 Lechoslaw A. M. Utracki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:25
CPC Classifications
C; C06; C06B; C06B35/00; C06D; C06D5/00; C06D5/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A solid nitrogen gas generating composition comprising a substantially stoichiometric admixture of (a) a fuel selected from the group consisting of alkali metal azides and alkaline earth metal azides, (b) a synergistically acting primary oxident component consisting of a mixture of at least two metal oxides selected from the group consisting of the oxides of iron, silicon, manganese, tantalum, niobium and tin, and (c) a residue control agent comprising a secondary metal oxide selected from the group consisting of the oxides of titanium, aluminium and zinc or mixtures of these.
Claim 2
Dependent Claim
90 words
A solid nitrogen gas generating composition comprising a substantially stoichiometric admixture of (a) a fuel selected from the group consisting of alkali metal azides and alkaline earth metal azides, (b) a synergistically acting primary oxident component consisting of a mixture of at least two metal oxides selected from the group consisting of the oxides of iron, silicon, manganese, tantalum, niobium and tin, and (c) a residue control agent comprising a secondary metal oxide selected from the group consisting of the oxides of titanium, aluminium and zinc or mixtures of these.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-03-07 | 1986-09-06 | 1987-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-03-07 | 1990-09-06 | 1991-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-03-07 | 1994-09-06 | 1995-03-08 | $7700.00 | Window Closed / Lapsed |