Armour constructions

• US 6,962,102 B1
• Filed: 11/14/1991
• Issued: 11/08/2005
• Est. Priority Date: 11/19/1990
• Status: Expired due to Term

• Current Assignee: BAE Systems Plc
• Original Assignee: BAE Systems Plc
• Inventors: Leaman, Paul Stuart, Johnston, Cameron Lindsay
• Primary Examiner(s): JOHNSON, STEPHEN
• Application Number:
  US07/799,782
• Time in Patent Office: 5,108 Days
• Field of Search: 89/361.7, 89/360.2, 89/360.1, 89/360.8, 109/36, 109/37, 109/49.5
• US Class Current: 89/36.17
• CPC Class Codes: F41H 5/007 Reactive armour; Dynamic armour
• CPC Class Codes: F41H 5/013 Mounting or securing armour plates

Abstract

An applique armour panel for fitting to a substrate and for protecting the substrate from missile or other projectile attack which panel comprises an exterior plate (1), an interior plate (4) and a layer or layers (7) of explosive material therebetween. The explosive material is detonated by an incoming missile to cause disruption of the incoming missile and reduce its penetrative effect. The panel is constructed so that upon reactive explosion the interior and exterior plates are driven apart more rapidly at one edge of the panel than at an opposite edge by a rotating moment of one plate relative to the other.

Claims

1. An applique armour panel for fitting to a substrate and for protecting the substrate from projectile attack which panel comprises:

an exterior plate,

an interior plate, said plates having juxtaposed faces and

at least a first layer of explosive material located at least partially between said plates, [which] said explosive material is detonated by said projectile attack to cause the panel to disrupt the projectile attack by reducing any penetrative effect thereof, said panels and said explosive material comprising a means, upon reactive explosion, for driving the interior and exterior plates apart more rapidly at one edge of the panel than at an opposite edge by at least partially including a rotating moment of one plate relative to the other and for enhancing the disruptive effect upon the projectile attack.

2. An applique armour panel according to claim 1 wherein the layer of explosive material is substantially coplanar with the juxtaposed faces of said interior and exterior plates.

3. An applique armour panel according to claim 2 wherein the layer of explosive material is tapered so that it decreases in thickness in a direction extending from said one edge towards said opposite edge.

4. An applique armour panel according to claim 2 wherein the layer of explosive material is perforate, and in which the size of the perforations graded so that they are of increased size in a direction extending from said one edge towards said opposite edge.

5. An applique armour panel according to claim 4 wherein the perforations are graded in rows.

6. An applique armour panel according to claim 2 wherein an additional layer of explosive material is superposed upon said first layer of explosive material so as to at least partially cover said first layer.

7. An applique armour panel according to claim 6 wherein the additional layer of explosive material is perforate.

8. An applique armour panel according to claim 7 wherein the size of the perforations in said additional layer of explosive material are graded so that they are of increased size in a direction extending from said one edge towards said opposite edge.

9. An applique armour panel according to claim 6 wherein the additional layer of explosive material is in the form of discrete strips.

10. An applique armour panel according to claim 9 wherein said strips are graded so that they are of decreasing width in a direction extending from said one edge towards said opposite edge.

11. An applique armour panel according to claim 1 wherein said panel is substantially rectangular in shape and said one edge is a transverse edge of the panel.

12. An applique armour panel according to claim 1 wherein said panel is substantially rectangular in shape and said one edge is a longitudinal edge of the panel.

13. An applique armour panel for fitting to a substrate and for protecting the substrate from projectile attack which panel comprises:

an exterior plate.

an interior plate, said plates having juxtaposed faces and

at least a first layer of explosive material located at least partially between said plates, said explosive material is detonated by said projectile attack to cause the panel to disrupt the projectile attack by reducing any penetrative effect thereof, said panels and said explosive material comprising a means, upon reactive explosion, for driving the interior and exterior plates apart more rapidly at one edge of the panel than at an opposite edge by at least partially including a rotating moment of one plate relative to the other and for enhancing the disruptive effect upon the projectile attack wherein, restraining means are provided to restrain the interior and exterior plates against being driven apart to a lesser degree at said one edge than at said opposite edge.

14. An applique armour panel for fitting to a substrate and for protecting the substrate from projectile attack which panel comprises:

an exterior plate,

an interior plate, said plates having juxtaposed faces and

at least a first layer of explosive material located at least partially between said plates, said explosive material is detonated by said projectile attack to cause the panel to disrupt the projectile attack by reducing any penetrative effect thereof, said panels and said explosive material comprising a means, upon reactive explosion, for driving the interior and exterior plates apart more rapidly at one edge of the panel than at an opposite edge by at least partially including a rotating moment of one plate relative to the other and for enhancing the disruptive effect upon the projectile attack, wherein the layer of explosive material is substantially coplanar with the juxtaposed faces of said interior and exterior plates, and an additional layer of explosive material is superposed upon said first layer of explosive material so as to at least partially cover said first layer, wherein the additional layer of explosive material is of chevron shape in which the base of the chevron is disposed adjacent said one edge and the apex of the chevron towards, but stops short of, or is disposed adjacent said opposite edge.