Patent ID: 8479666
Filing Date: 2013-07-09
Classification: B65D,Y10T

Abstract:
1. An element for interlocking top and bottom members in nested relation to form a force resisting structure, the top member comprising a base panel and a top member side portion foldably connected to one of the side edges of said top member base panel and the bottom member comprising a base panel and a bottom member side portion foldably connected to one of the side edges of said bottom member base panel, comprising: an access opening and a tuck flap formed in the side portion of either the top member side portion or the bottom member side portion; a retention flap extending from the other of the top member or the bottom member through the access opening of the side portion of the opposing top or bottom member to engage the top member and the bottom member; and a fastener for affixing said retention flap adjacent the tuck flap of the opposing member when said retention flap is folded through said access opening.