US4297152A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Energetic monopropellant
Assignee: United States Department of the Air Force
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Filing: 1980-01-10
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Granted: 1981-10-27
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Expires: 2000-01-10
Abstract
Abstract An energetic liquid monopropellant comprising a mixture of bis (2,2-dinitropropyl) acetal; bis (2,2-dinitropropyl) formal; and bis (2,2,2-fluorodinitroethyl) formal.
Inventors
- 👤 Milton B. Frankel
- 👤 Harry A. Arbit
- 👤 Glen D. Artz
- 👤 John C. Gray
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:37
CPC Classifications
C; C06; C06D; C06D5/00; C06D5/04; C06B; C06B25/00; C06B25/36; Y; Y10; Y10S; Y10S149/00; Y10S149/119
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
18 words
A liquid monopropellant composition comprising a mixture of bis (2,2-dinitropropyl) acetal, bis (2,2-dinitropropyl) formal and bis (2,2,2-fluorodinitroethyl) formal.
Claim 2
Dependent Claim
18 words
A liquid monopropellant composition comprising a mixture of bis (2,2-dinitropropyl) acetal, bis (2,2-dinitropropyl) formal and bis (2,2,2-fluorodinitroethyl) formal.
Claim 3
Dependent Claim
46 words
A liquid monopropellant composition in accordance with claim 1 wherein said mixture comprises (a) about 30 to 70 weight percent of a 50--50 weight ratio blend of bis (2,2-dinitropropyl) acetal and bis (2,2-dinitropropyl) formal, and (b) the balance of said mixture substantially all bis (2,2,2-fluorodinitroethyl) formal.
Claim 4
Dependent Claim
43 words
A liquid monopropellant composition in accordance with claim 1 wherein said mixture comprises (a) about 50 to 60 weight percent of a 50--50 weight ratio blend of bis (2,2-dinitropropyl) acetal and bis (2,2-dinitropropyl) formal and (b) the balance substantially all bis (2,2,2-fluorodinitroethyl) formal.
Claim 5
Dependent Claim
39 words
A liquid monopropellant composition consisting essentially of a mixture of (a) about 60 weight percent of a 50--50 weight ratio blend of bis (2,2-dinitropropyl) acetal and bis (2,2-dinitropropyl) formal; and (b) about 40 weight percent of bis (2,2,2-fluorodinitroethyl) formal.
Claim 6
Dependent Claim
39 words
A liquid monopropellant composition consisting essentially of a mixture of (a) about 60 weight percent of a 50--50 weight ratio blend of bis (2,2-dinitropropyl) acetal and bis (2,2-dinitropropyl) formal; and (b) about 40 weight percent of bis (2,2,2-fluorodinitroethyl) formal.
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) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |