Patent US4015529A successfully refreshed from Google Patents.
US4015529A
Expired / Lapsed
US
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Illuminative and incendiary explosive munitions
Assignee: United States Department of the Army
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Filing: 1976-01-16
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Granted: 1977-04-05
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Expires: 1996-01-16
Abstract
Abstract This invention involves the incorporation of a relatively small quantity of zirconium or other pyrophoric material in the high explosive composition of a munition, which provides incendiary, terrain illumination, spotting, and enhanced antipersonnel properties to the munition with little or no diminution of its explosive and fragmentation power.
Inventors
- 👤 Charles A. Knapp
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:29
CPC Classifications
C; C06; C06C; C06C15/00; C06B; C06B33/00; C06B33/08; C06C9/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
60 words
In a shaped charge, a composition having illuminating and incendiary properties comprising a high explosive and a pyrophoric metal selected from the group consisting of zirconium, titanium and misch metal, wherein said pyrophoric metal possesses a particle size of at least about 1/10 inch and is attached to the shaped charge liner on the side adjacent to said high explosive.
Claim 2
Dependent Claim
60 words
In a shaped charge, a composition having illuminating and incendiary properties comprising a high explosive and a pyrophoric metal selected from the group consisting of zirconium, titanium and misch metal, wherein said pyrophoric metal possesses a particle size of at least about 1/10 inch and is attached to the shaped charge liner on the side adjacent to said high explosive.
Claim 3
Dependent Claim
11 words
The shaped charge of claim 1, wherein the metal is zirconium.
Claim 4
Dependent Claim
11 words
The shaped charge of claim 1, wherein the metal is titanium.
Claim 5
Dependent Claim
20 words
The charge of claim 1, wherein the metal possesses a particle size between about 1/10 inch and about 3/4 inch.
Claim 6
Dependent Claim
18 words
The shaped charge of claim 1, wherein the high explosive consists of 2,4,6-trinitrotoluene and the metal is zirconium.
Claim 7
Dependent Claim
24 words
The shaped charge of claim 1, wherein the metal amounts to from about 5% to about 30% by weight of the total explosive/metal content.
Claim 8
Dependent Claim
86 words
The shaped charge of claim 1, wherein the high explosive is selected from the group consisting of at least one of the following: 1. mixtures of cyclotrimethylenetrinitramine and 2,4,6-trinitrotoluene in the weight ratios resp. of 75/25, 70/30, 65/35 and 60/40; 2. a mixture of 91 parts cyclotrimethylenetrinitramine and 9 parts wax; 3. a mixture of 60 parts cyclotrimethylenetrinitramine and 40 parts 2,4, 6-trinitrotoluene and 1% added wax; 4. a mixture of 80 parts 2,4,6-trinitrotoluene and 20 parts aluminum; 5. lead azide; 6. cyclotrimethylenetrinitramine; and 7. 2,4,6-trinitrotoluene.
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) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |