Patent ID: 6684591
Filing Date: 2004-02-03
Classification: A63H,E04B

Abstract:
A construction element for use in constructing three dimensional objects, the construction element comprising:a generally planar main body, said main body having an upper marginal edge, a lower marginal edge, and first and second side marginal edges; an upper recess formed in said upper marginal edge intermediate said side marginal edges; a lower recess formed in said lower marginal edge intermediate said first and second side marginal edges; a first upper tab formed adjacent the intersection of said upper marginal edge and first side marginal edge; a second upper tab formed adjacent the intersection of said upper marginal edge and said second side marginal edge; a first lower tab formed adjacent the intersection of said lower marginal edge and said first side marginal edge; a second lower tab formed adjacent the intersection of said lower marginal edge and said second side marginal edge; and said first and second upper tabs being sized to fit within upper recesses formed in adjacent construction elements and said first and second lower tabs being sized and arranged to fit within lower recesses formed in adjacent structural construction elements, each of said upper and lower tabs extending outwardly of respective side marginal edges and each of said side marginal edge between respective upper and lower tabs having a profile which remains inwardly of said tabs.