Patent ID: 8499677

Claim:
A blast-resistant structure for the hull of a land vehicle, the structure comprising: a base, comprising: two vertex structures, each vertex structure being defined by an inwardly inclined inside wall connected to an outwardly inclined outside wall at a vertex; and a concave structure having at least one substantially flat surface; wherein the concave structure is supported by the two vertex structures and is positioned laterally intermediate the two vertexes, is concave in a downward direction and has outer portions defined in part by the inside wall of each vertex structure, the outer portions being connected by the at least one substantially flat surface, wherein the base has a constant cross-section along a longitudinal length of at least a portion of the vehicle where blast protection is required, wherein the base, when subjected to an explosion between the two vertex structures, deforms along at least one of the inside walls to create a downward force on the at least one substantially flat surface of the concave structure, and wherein at least a portion of the concave structure is higher than an axle of the vehicle and the vertexes of the vertex structures are lower than the axle of the vehicle.