US4402775A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hybrid gun propellant
Assignee: United States Department of the Navy
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Filing: 1982-06-24
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Granted: 1983-09-06
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Expires: 2002-06-24
Abstract
Abstract A hybrid gun propellant containing an oxidizer rich liquid monopropellant and an oxidizer deficient single based solid propellant.
Inventors
- 👤 Stanley E. Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:40
CPC Classifications
C; C06; C06B; C06B47/00; C06B23/00; C06B23/04; C06B47/14
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
38 words
A gun propellant composition comprising: an oxidizer rich liquid selected from the group consisting of a hydroxylammonium nitrate and water admixture and a hydroxylammonium nitrate, ammonium nitrate and water admixture; and an oxidizer deficient single based solid propellant.
Claim 2
Dependent Claim
38 words
A gun propellant composition comprising: an oxidizer rich liquid selected from the group consisting of a hydroxylammonium nitrate and water admixture and a hydroxylammonium nitrate, ammonium nitrate and water admixture; and an oxidizer deficient single based solid propellant.
Claim 3
Dependent Claim
20 words
A gun propellant composition according to claim 1 wherein said oxidizer rich liquid is a hydroxylammonium nitrate and water admixture.
Claim 4
Dependent Claim
22 words
A gun propellant composition according to claim 1 wherein said oxidizer rich liquid is a hydroxylammonium nitrate, ammonium nitrate and water admixture.
Claim 5
Dependent Claim
28 words
A gun propellant according to claim 1 or 3 wherein said hydroxylammonium nitrate, ammonium nitrate and water admixture is 6.5 molar hydroxylammonium nitrate and 5.5 molar ammonium nitrate.
Claim 6
Dependent Claim
22 words
A gun propellant composition according to claim 1 wherein said oxidizer rich liquid is 30-55% by weight of 13 molar hydroxylammonium nitrate.
Claim 7
Dependent Claim
22 words
A gun propellant composition according to claim 1 or 2 wherein said hydroxylammonium nitrate and water admixture is 13 molar hydroxylammonium nitrate.
Claim 8
Dependent Claim
28 words
A gun propellant according to claim 4 wherein said hydroxylammonium nitrate, ammonium nitrate and water admixture as the oxidizer rich liquid is 30-55% by weight of said composition.
Claim 9
Dependent Claim
26 words
A gun propellant according to claim 6 wherein said hydroxylammonium nitrate and water admixture as the oxidizer rich liquid is 30-55% by weight of said composition.
References Cited (Backward Citations)
US3234729A
Cited
US3962001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-09-05 | 1987-03-07 | 1987-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-09-05 | 1991-03-07 | 1991-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-09-05 | 1995-03-07 | 1995-09-06 | $7700.00 | Window Closed / Lapsed |