Patent ID: 8302363

Claim:
An interlocking support structure, comprising: an array of rectangular cells arranged in at least one layer, each cell having four sides, opposite ends, and eight corners, and sharing common sides and corners with any adjacent cells; the cells being formed by a first set of elongate structural members extending parallel to one another in at least two spaced planes, a second set of elongate structural members extending parallel to one another and at an angle to the first set in the same two spaced planes, the first and second set of structural members intersecting at the corners of the array of cells, and a third set of elongate structural members extending parallel to one another between the two planes at the corners formed by the first and second sets of structural members and interlocking with the first and second sets of structural members to form corner joints at each intersection of the first, second, and third sets of structural members; each structural member having a hollow interior at least at the joints and communicating with the other structural members at least at the corner joints to form a hollow corner joint; and wherein the structural members have end stops within the hollow interior at predetermined spacings from the center of each joint and a single monolithic adhesive plug filling the hollow corner joint and the hollow interior of the structural members at each corner joint up to the end stops and adhered to internal surfaces of the structural members at the joint to secure the structural members together at the joints.