Patent ID: 7516750

Claim:
A structure comprising: (a) a first panel, a second panel, a third panel and a fourth panel, each of the panels having: a flexible loop member defining a closed loop and having a first edge and a second edge, the loop member adapted to assume an expanded position and a collapsed position; a fabric for partially covering the loop member, with the loop member substantially supporting the fabric in particular areas so that the fabric assumes the particular configuration of the loop member when in the expanded position of the loop member; and a left side and a right side defined by the loop member and the associated fabric; (b) wherein the loop members of the first and second panels overlap each other at a first overlapping point along the first edges of the loop members of the first and second panels, and at a second overlapping point along the second edges of the loop members of the first and second panels, the overlapping loop members defining a hinge portion about which the first and second loop members of the first and second panels are pivotable; (c) wherein the loop members of the third and fourth panels overlap each other at a third overlapping point along the first edges of the loop members of the third and fourth panels, and at a fourth overlapping point along the second edges of the loop members of the third and fourth panels, the overlapping loop members defining a hinge portion about which the third and fourth loop members of the third and fourth panels are pivotable; and (d) wherein portions of each of the first, second, third and fourth panels define an interior space.