Patent ID: 7299736

Claim:
A controlled harm explosive reactive armor (COHERA) operative in association with a structure having an interior and an exterior, the COHERA being disposed on the exterior of the structure, comprising: a stack of plate elements having a front plate, an intermediate plate providing a fast exothermic reaction, and a back plate, the stack of plate elements reacting explosively to disrupt the trajectory of and/or to break an incoming projectile impinging on the front plate, and at least one plate out of the stack of plate elements being configured to shatter in predetermined fragment size distribution according a selected harm prevention criteria including harm specification parameters when the COHERA reacts explosively for providing protection selected alone and in combination from the group consisting of protection to personnel in the interior of the structure, protection to the structure, and protection to personnel and/or to equipment on the exterior of the structure, whereby the COHERA forms an explosive reactive armor cassette for controlled harm prevention.