US4305333A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Warhead for projectiles and rockets
Assignee: Rheinmetall Industrie AG
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Filing: 1979-08-10
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Granted: 1981-12-15
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Expires: 1999-08-10
Abstract
Abstract Warhead for projectiles and rockets in which the projectile or rocket casing can be relied upon to decompose into splinters of predetermined size, shape, and distribution. To accomplish this result, a thin-walled insert is positioned between the projectile or rocket casing and the explosive charge, such insert being provided with a number of ribs forming a series of saddle-roof shaped structures which exert a cutting charge effect on the casing on the detonation of the explosive charge.
Inventors
- 👤 Ernst-Wilhelm Altenau
- 👤 Wolfram Witt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:02
CPC Classifications
F; F42; F42B; F42B12/00; F42B12/02; F42B12/04; F42B12/10; F42B12/14; F42B12/20; F42B12/22
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
A warhead for a projectile or rocket, comprising an outer casing, a thin-walled inserted lining in at least a part of the casing, and an explosive charge within the casing inwardly of the lining, the insert being provided with a number of ribs forming a series of saddle-roof-shaped rib structures which exert a cutting charge effect on the projectile casing on the detonation of the explosive charge, and wherein the internal surface of the projectile casing which rests against the explosive charge is subdivided into a number of small fields defined by grooves therein, each rib-structure in the lining being associated with each groove in the casing, the rib-structures and grooves presenting in conjunction with one another a rhomboidal cross section of which the longitudinal diagonal is directed radially of the axis of the casing.
Claim 2
Dependent Claim
135 words
A warhead for a projectile or rocket, comprising an outer casing, a thin-walled inserted lining in at least a part of the casing, and an explosive charge within the casing inwardly of the lining, the insert being provided with a number of ribs forming a series of saddle-roof-shaped rib structures which exert a cutting charge effect on the projectile casing on the detonation of the explosive charge, and wherein the internal surface of the projectile casing which rests against the explosive charge is subdivided into a number of small fields defined by grooves therein, each rib-structure in the lining being associated with each groove in the casing, the rib-structures and grooves presenting in conjunction with one another a rhomboidal cross section of which the longitudinal diagonal is directed radially of the axis of the casing.
Claim 3
Dependent Claim
19 words
A warhead in accordance with claim 1, wherein the explosive charge intimately engages the inner surface of the lining.
Claim 4
Dependent Claim
16 words
A warhead in accordance with claim 2, wherein the explosive charge is cast into the lining.
Claim 5
Dependent Claim
14 words
A warhead in accordance with claim 1, wherein the lining consists of sheet material.
Claim 6
Dependent Claim
22 words
A warhead in accordance with claim 1, wherein the rib structures include grooves in the lining which form a cohesive grid network.
Claim 7
Dependent Claim
54 words
A warhead in accordance with claim 1, wherein the rib structures are positioned paraxially and chessboard-wise in the insert, the distance between the rib structures of adjacent rows being such that on the detonation of the explosive charge the rupture of rib structures leads to the formation of additional cracks in the projectile casing.
Claim 8
Dependent Claim
38 words
A warhead in accordance with claim 1, wherein at least a portion of the casing and a portion of the insert is subdivided into small fields by means of grooves or rib structures of arcuate triangular cross section.
Claim 9
Dependent Claim
23 words
A warhead in accordance with claim 1, wherein the rib structures of the insert rest against a smoothwalled internal surface of the casing.
Claim 10
Dependent Claim
22 words
A warhead in accordance with claim 8, wherein the explosive charge has a hollow therein facing the forward end of the casing.
References Cited (Backward Citations)
US3000309A
Cited
FR973780A
Cited
US3491694A
Cited
US3298308A
Cited
US3263612A
Cited
US4072107A
Cited
US3974771A
Cited
FR1593370A
Cited
DE1946990A1
Cited
US3667390A
Cited
FR2116781A6
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-14 | 1985-06-15 | 1985-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-14 | 1989-06-15 | 1989-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-14 | 1993-06-15 | 1993-12-15 | $7700.00 | Window Closed / Lapsed |