US3775199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nitrogen generator
Assignee: United States Department of the Navy
•
Filing: 1972-10-13
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Granted: 1973-11-27
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Expires: 1992-10-13
Abstract
Abstract A material for generating hot nitrogen gas comprising sodium azide and sulfur in the presence of a conventional solid propellant ignitor.
Inventors
- 👤 C Boyars
- 👤 C Zovko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:29
CPC Classifications
C; C06; C06B; C06B35/00; C06D; C06D5/00; H; H01; H01S; H01S3/00; H01S3/09; H01S3/095
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
11 words
The composition of claim 1 wherein said azide is sodium azide.
Claim 2
Dependent Claim
18 words
The composition of claim 1 which additionally contains a substance or mixture of substances which can produce CO2.
Claim 3
Dependent Claim
11 words
The composition of claim 3 wherein said substance is a carbonate.
Claim 4
Dependent Claim
17 words
The composition of claim 1 wherein said azide and said sulfur are present in about stoichiometric quantities.
Claim 5
Dependent Claim
17 words
The composition of claim 3 wherein said azide and said sulfur are present in about stoichiometric quantities.
Claim 6
Dependent Claim
26 words
The composition of claim 1 wherein the quantity of either said azide or said sulfur is not less than about 20 percent of the stoichiometric quantity.
Claim 7
Dependent Claim
26 words
The composition of claim 3 wherein the quantity of either said azide or said sulfur is not less than about 20 percent of the stoichiometric quantity.
Claim 8
Dependent Claim
25 words
The composition of claim 1 wherein the quantity of said azide or said sulfur is not less than about 75 percent of the stoichiometric quantity.
Claim 9
Dependent Claim
26 words
The composition of claim 3 wherein the quantity of either side sulfur or said azide is not less than about 75 percent of the stoichiometric quantity.
Claim 10
Dependent Claim
14 words
A method of generating hot nitrogen gas comprising igniting the composition of claim 1.
Claim 11
Dependent Claim
15 words
A method of generating hot nitrogen and CO2 comprising igniting the composition of claim 3.
Claim 12
Dependent Claim
23 words
A method of generating hot nitrogen which is capable of use in a gas dynamic laser comprising igniting the composition of claim 5.
Claim 13
Dependent Claim
25 words
A method of generating hot nitrogen and CO2 which is capable of use in a gas dynamic laser comprising igniting the composition of claim 6.
References Cited (Backward Citations)
US2981616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |