US3940298A
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Thermal laser pumped with high nitrogen content propellants
Assignee: United States Department of the Navy
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Filing: 1974-12-06
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Granted: 1976-02-24
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Expires: 1994-12-06
Abstract
Abstract Thermal lasers use aliphatic polynitro compounds and polynitroamines as oxidizers and tetrazoles, ditetrazolyls, tetrazines, triazines and guanidines as fuel.
Inventors
- 👤 Werner F. Beckert
- 👤 Ottmar H. Dengel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:37
CPC Classifications
H; H01; H01S; H01S3/00; H01S3/09; H01S3/095; C; C06; C06B; C06B25/00; C06B25/34; C06D; C06D5/00; C06D5/06
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
84 words
In a method of pumping thermal lasers comprising: a. combusting a fuel and an oxidizer and (b) expanding the combustion products through a supersonic nozzle to produce a laser effect, the improvement wherein (1) said fuel comprises at least one selected from the group consisting of a tetrazole derivative, a ditetrazolyl derivative, a tetrazine derivative, a triazine derivative and a guanidine derivative, (2) said oxidizer comprises at least one selected from the group consisting of a high-energy aliphatic polynitro compound and a polynitroamine compound.
Claim 2
Dependent Claim
84 words
In a method of pumping thermal lasers comprising: a. combusting a fuel and an oxidizer and (b) expanding the combustion products through a supersonic nozzle to produce a laser effect, the improvement wherein (1) said fuel comprises at least one selected from the group consisting of a tetrazole derivative, a ditetrazolyl derivative, a tetrazine derivative, a triazine derivative and a guanidine derivative, (2) said oxidizer comprises at least one selected from the group consisting of a high-energy aliphatic polynitro compound and a polynitroamine compound.
Claim 3
Dependent Claim
12 words
The method of claim 1 wherein the polynitroamine compound is tetranitroethylene diamine.
Claim 4
Dependent Claim
21 words
The method of claim 1 wherein the aliphatic polynitro compound is selected from the group consisting of tetranitromethane, trinitromethane, and hexanitroethane.
Claim 5
Dependent Claim
24 words
The method of claim 1 wherein the tetrazole derivative is selected from the group consisting of tetrazole, 5-azidotetrazole, 5-dinitromethyl tetrazole, 5-cyanotetrazole, 5-aminotetrazole, and 5-nitraminotetrazole.
Claim 6
Dependent Claim
15 words
The method of claim 1 wherein the ditetrazolyl derivative has the following structural formula ##EQU6##
Claim 7
Dependent Claim
20 words
The method of claim 1 wherein the ditetrazolyl derivative is selected from the group consisting of ditetrazolylamine, 5,5'-hydrazotetrazolyl, and 1,3-ditetrazolyltriazene.
Claim 8
Dependent Claim
19 words
The method of claim 1 wherein the tetrazine derivative is selected from the group consisting of diaminotetrazine and dihydrazinotetrazine.
Claim 9
Dependent Claim
11 words
The method of claim 1 wherein the guandine derivative is nitroaminoguanidine.
Claim 10
Dependent Claim
67 words
A composition comprising a fuel and an oxidizer suitable for use in a thermal laser: a. said fuel being at least one selected from the group consisting of a guanidine derivative, a triazine derivative, a tetrazine derivative, a ditetrazolyl derivative, and a tetrazole derivative; and b. said oxidizer being at least one selected from the group consisting of a high energy aliphatic polynitro compound and a polynitroamine.
Claim 11
Dependent Claim
67 words
A composition comprising a fuel and an oxidizer suitable for use in a thermal laser: a. said fuel being at least one selected from the group consisting of a guanidine derivative, a triazine derivative, a tetrazine derivative, a ditetrazolyl derivative, and a tetrazole derivative; and b. said oxidizer being at least one selected from the group consisting of a high energy aliphatic polynitro compound and a polynitroamine.
Claim 12
Dependent Claim
10 words
The composition of claim 9 wherein the polynitroamine is tetranitroethylenediamine.
Claim 13
Dependent Claim
21 words
The composition of claim 9 wherein the aliphatic polynitro compound is selected from the group consisting of tetranitromethane, trinitromethane, and hexanitroethane.
Claim 14
Dependent Claim
11 words
The composition of claim 9 wherein the guanidine derivative is nitroaminoguanidine.
Claim 15
Dependent Claim
13 words
The composition of claim 9 wherein the triazine derivative is cyanuric acid triazide.
Claim 16
Dependent Claim
19 words
The composition of claim 9 wherein the tetrazine derivative is selected from the group consisting of diaminotetrazine and dihydrazinotetrazine.
Claim 17
Dependent Claim
20 words
The composition of claim 9 wherein the ditetrazolyl derivative is selected from the group consisting of ditetrazolylamine; 1,3-ditetrazolyltriazene; and 5,5'-hydrazotetrazolyl.
Claim 18
Dependent Claim
15 words
The composition of claim 9 wherein the ditetrazolyl derivative has the following structural formula: ##EQU7##
Claim 19
Dependent Claim
9 words
The composition of claim 9 additionally including a binder.
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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) | 1979-02-23 | 1979-08-25 | 1980-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-02-23 | 1983-08-25 | 1984-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-02-23 | 1987-08-25 | 1988-02-24 | $7700.00 | Window Closed / Lapsed |