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US3742859A
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Explosive charge
Assignee: United States Department of the Navy
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Filing: 1965-04-02
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Granted: 1973-07-03
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Expires: 1985-04-02
Abstract
Abstract A dual explosive charge comprising concentric layers of differing detonation velocity compositions for use against armoured targets, in underwater ordnance and for cratering. The charge consists of a core composed of a composition having a detonation velocity of less than 5,000 meters per second and an annulus having a detonation velocity above 5,000 meters per second.
Inventors
- 👤 W Finnegan
- 👤 L Burkardt
- 👤 W Mclean
- 👤 W Mcewan
- 👤 E Larocca
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:23
CPC Classifications
F; F42; F42B; F42B1/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
53 words
An explosive charge comprising a plurality of concentric layers of low detonation velocity compositions and high detonation velocity compositions; the innermost layer being a low detonation velocity composition consisting essentially of magnesium and hexachloroethane; and the outermost layer being a high detonation velocity composition consisting essentially of cyclotrimethylenetrinitramine, mononitrotoluene, dinitrotoluene, trinitrotoluene and tetryl.
Claim 2
Dependent Claim
47 words
An explosive charge comprising two concentric layers of explosive composition; the inner layer consisting essentially of Percent Ingredients by weight Aluminum powder 21.06 Sulfur 12.16 Potassium perchlorate 66.78;and the outer layer consisting essentially of Percent Ingredients by weight Cyclotrimethylenetrinitramine 55.2 Trinitrotoluene 40.0 Polyisoluctylene and 1.2 Wax 0.6.
Claim 3
Dependent Claim
30 words
An explosive charge comprising two concentric layers of material, the inner layer consisting essentially of lithium and water the outer layer consisting essentially of cyclotrimethylenetrinitramine, mononitrotoluene, dinitrotoluene, trinitrotoluene and tetryl.
Claim 4
Dependent Claim
57 words
An explosive charge comprising two concentric layers of explosive composition, the inner layer consisting essentially of Ingredients Percent by weight Aluminum 60 Ammonium nitrate 40; and the outer layer consisting of Ingredients Percent by weight Cyclotrimethylenetrinitramine 78 + or - 2 Explosive plasticizer 22 + or - 2 said plasticizer consisting of mononitrotoluene, dinitrotoluene, trinitrotoluene and tetryl.
Claim 5
Dependent Claim
55 words
An explosive charge comprising two concentric layers of explosive composition; the inner layer consisting essentially of a stoichiometric mixture of aluminum and carbon tetrachloride; and the outer layer consisting of 78.0 + or - 2.0 percent cyclotrimethylenetrinitramine and 22.2 + or - 2.0 percent explosive plasticizer; said plasticizer consisting of mononitrotoluene, dinitrotoluene, trinitrotoluene, and tetryl.
References Cited (Backward Citations)
US3082689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-02 | 1977-01-01 | 1977-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-02 | 1981-01-01 | 1981-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-02 | 1985-01-01 | 1985-07-03 | $7700.00 | Window Closed / Lapsed |