Patent ID: 7407425

Claim:
A walled structure apparatus orientated perpendicular to a horizontal surface comprising: a plurality of panels each said panel having a major plane with a first corner and a notch therein and a second corner having a projecting tab adapted for receipt within said notch, whereby said tab of a first panel rests within said notch of a second panel, each said first corner presented at the intersection of a top edge and one of a pair of straight edges extending vertically downward from said notch to the bottom of the panel, said top edge extending horizontally from said notch to said tab, said second straight edge extending vertically downward from said tab to the bottom of the panel, a hinge structure in said notch uniting said panels for relative movement of each panel to any one of a number of selected positions and said structure including interengaged flexible components in said notch and said tab permitting said relative movement inwardly and outwardly to said selected position to exhibit a deformed structure.