US4280408A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Projectile
Assignee: Diehl Verwaltungs Stiftung
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Filing: 1979-05-24
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Granted: 1981-07-28
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Expires: 1999-05-24
Abstract
Abstract A projectile with a penetrating member, in which a pyrotechnic composition is arranged ahead of and rearwardly of the penetrating member. The forward composition, preferably incendiary, is encompassed by a ballistic hood, the rearward composition being at least partially of explosive material is detonatable by an impact detonator. The head portion of the penetrating member is formed of two regions having different slopes to increase the activity of the projectile at flat striking angles against a target. The two regions are separated by a sharp-edged gripping edge. The penetrating member may also include in the interior thereof a plug of a pyrophorically acting metal or alloy.
Inventors
- 👤 Adolf Weber
- 👤 Siegfried Rhau
- 👤 Utz-Udo Ahlers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:09
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/36; F42B12/44
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
84 words
An antiaircraft projectile having a ballistic projectile hood (7) and a first pyrotechnic composition (13) with a primer charge (15) arranged below said hood, a penetrating member (1) which is open at its base and having two gripping edges (6, 17) at the outer circumference of cylindrical sections (1, 2) a base detonator (12) for a second pyrotechnic composition (14) arranged in said penetrating member (1), and an insert (16) located in the head portion of said penetrating member (1) formed of metallic zirconium.
Claim 2
Dependent Claim
84 words
An antiaircraft projectile having a ballistic projectile hood (7) and a first pyrotechnic composition (13) with a primer charge (15) arranged below said hood, a penetrating member (1) which is open at its base and having two gripping edges (6, 17) at the outer circumference of cylindrical sections (1, 2) a base detonator (12) for a second pyrotechnic composition (14) arranged in said penetrating member (1), and an insert (16) located in the head portion of said penetrating member (1) formed of metallic zirconium.
Claim 3
Dependent Claim
26 words
Projectile as claimed in claim 1, said first pyrotechnic composition comprising an incendiary composition, and said second pyrotechnic composition at least partially comprising an explosive material.
Claim 4
Dependent Claim
58 words
Projectile as claimed in claim 1 or 2, said penetrating member including a head portion forming a shell surface fairing into the outer projectile configuration, the frontal area of said head portion including inner and outer surfaces having different slopes, the inner surface having a larger generating angle, said outer surface extending approximately perpendicular to the projectile axis.
Claim 5
Dependent Claim
51 words
Projectile as claimed in claim 3, said inner surface subtending a generating angle of about 150° and having a diameter at the base surface thereof of about one-half the diameter of the frontal area of said penetrating member, said outer surface subtending an angle of about 90° with the shell surface.
Claim 6
Dependent Claim
49 words
Projectile as claimed in claim 1, said penetrating member including a head portion forming a shell surface fairing into the outer projectile configuration, said head portion having a smaller diameter than the remaining penetrating member and being separated therefrom by a preset rupturing location consisting of a sharp-edged recess.
Claim 7
Dependent Claim
31 words
Projectile as claimed in claim 5, said head portion of the penetrating member including a hollow; and a solid plug-shaped insert of a pyrophorically acting metal being arranged in said hollow.
Claim 8
Dependent Claim
17 words
Projectile as claimed in claim 6, said solid insert being constituted of a pyrophorically acting metal alloy.
Claim 9
Dependent Claim
16 words
Projectile as claimed in claim 2, said second pyrotechnic composition being exclusively constituted of explosive material.
Claim 10
Dependent Claim
31 words
Projectile as claimed in claim 6, wherein the separating location between said pyrophorically acting metal insert and said second pyrotechnic composition is located in immediate proximity to the preset rupturing location.
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) | 1984-07-27 | 1985-01-26 | 1985-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-27 | 1989-01-26 | 1989-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-27 | 1993-01-26 | 1993-07-28 | $7700.00 | Window Closed / Lapsed |