Patent ID: 7318764
Filing Date: 2008-01-15
Classification: A63F,A63H,B44C

Abstract:
1. A 3-dimensional structure formed from three separate pieces, the pieces being generally planar and being configured so as to be slidably engageable such that each of the three pieces is disposed generally perpendicular to the remaining two pieces and such that the three pieces share a common point of intersection and such that the three pieces do not share a common line of intersection; wherein each of the three pieces has a first slot extending inwardly from an edge thereof and a second slot extending inwardly from an edge thereof and generally perpendicular to the first slot; and wherein simultaneously: the first slot of the first piece engages the second slot of the second piece, the first slot of the second piece engages the second slot of the third piece, and the first slot of the third piece engages the second slot of the first piece.