EP0041271A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Composite ceramic armor
Assignee: Individual
•
Filing: 1981-06-02
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Granted: —
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Expires: 2001-06-02
Abstract
Abstract A composite armor for fragmenting the hard core of armor piercing projectiles has a matrix (M) of elastomeric material having a percent elongation of about 400 to about 600 embedded in which are at least two rows of parallel elongate cylindrical rods (R) formed of a hard ceramic projectile-fragmenting material. The elastomeric material of the matrix is the only substance that flows between adjacent ceramic rods.
Inventors
- 👤 Alvin Eugene Gorum
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-04 14:23
CPC Classifications
F; F41; F41H; F41H5/00; F41H5/02; F41H5/04; F41H5/0414; F41H5/0492
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
179 words
A composite armor for fragmenting the hard core of an armor piercing projectile, the armor being of the type having a matrix of polymeric material, in which is included at least two rows of parallel, elongate, rounded section cylindrical rods formed of a hard ceramic projectile, fragmenting material embedded in the matrix, wherein all of the rods are spaced from one another by a distance which is substantially less than the thickness of the rods, characterized in that matrix is formed of a homogenous body of elastomeric material having a percent elongation which is in the range of about 400 to about 600, that the elastomeric material of the matrix is the only substance disposed between and along the major length of adjacent ceramic rods, that the elastomeric material has a sonic velocity that is much smaller than that of the ceramic rods, thereby restricting rod fracture to substantially those portions of the rods which are impacted by the projectile without substantial fracture of the non-impacted rods by the transmission of shock waves from impacted rods through the matrix.
Claim 2
Dependent Claim
179 words
A composite armor for fragmenting the hard core of an armor piercing projectile, the armor being of the type having a matrix of polymeric material, in which is included at least two rows of parallel, elongate, rounded section cylindrical rods formed of a hard ceramic projectile, fragmenting material embedded in the matrix, wherein all of the rods are spaced from one another by a distance which is substantially less than the thickness of the rods, characterized in that matrix is formed of a homogenous body of elastomeric material having a percent elongation which is in the range of about 400 to about 600, that the elastomeric material of the matrix is the only substance disposed between and along the major length of adjacent ceramic rods, that the elastomeric material has a sonic velocity that is much smaller than that of the ceramic rods, thereby restricting rod fracture to substantially those portions of the rods which are impacted by the projectile without substantial fracture of the non-impacted rods by the transmission of shock waves from impacted rods through the matrix.
Claim 3
Dependent Claim
37 words
The armor of claim 1; comprising a backing plate of tough, non-spalling material juxtaposed against the rear face of said matrix with a layer of matrix material disposed between the innermost row of rods and said plate.
Claim 4
Dependent Claim
14 words
The armor of claim l; wherein said matrix-is formed of a cured polyurethane resin.
Claim 5
Dependent Claim
12 words
The armor of claim 1; wherein said matr,ix is formed of rubber.
Claim 6
Dependent Claim
15 words
The armor of claim l; wherein said matrix has a Shore durometer of about 70-A.
Claim 7
Dependent Claim
15 words
The armor of claim 1; wherein said matrix has a percent elongation of about 600.
Claim 8
Dependent Claim
28 words
The armor of claim l; wherein said rods are substantially circular in section with the rods of each layer being staggered relative to those of an adjacent layer.
Claim 9
Dependent Claim
12 words
The armor of claim 7; wherein there are two layers of rods.
Claim 10
Dependent Claim
54 words
The armor of claim 8; wherein all of the rods in the outermost row of rods are of substantially circular section, their being a rod of substantially semi-circular section at each side of the underlying row of rods with the remainder of the rods in said underlying row also being of substantially circular section.
Claim 11
Dependent Claim
28 words
The armor of claim 1; wherein said rods are spaced from one another by a distance that is about 1/8 of the major cross-sectional dimension of a rod.
Claim 12
Dependent Claim
36 words
The armor of claim 1; wherein said rods are elliptical in section, the major axes of the rod sections being inclined to the face of the armor at angles of about · 30° to about 60°:
Claim 13
Dependent Claim
14 words
The armor of claim 11; wherein said inclination angle is about 45 0 .
Claim 14
Dependent Claim
81 words
A composite armor as in claim 1 wherein the matrix and the embedded rods are formed as a discrete panel, characterized in that the panel is in the form of a box-like member having a bottom wall and side walls formed of a tough armor material that enclose the matrix, that there is a layer of matrix material between the rods and the walls of the box-like member, and that means is provided for attaching the panel 'to a vehicle structure.
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