Patent ID: 7950191

Claim:
A surface support structure comprising: at least one cell having a plurality of integral upright walls, a first of the plurality of upright walls having generally coplanar spaced face portions and an inwardly extending recessed portion to allow extension and contraction in multiple directions of the at least one cell, the recessed portion extending continuously and unintersected between and connecting the spaced face portions such that a void is present between the spaced face portions; wherein the plurality of upright walls of the at least one cell defines a perimeter such that the recessed portion extends towards a second wall of the plurality of upright walls and is within the perimeter; wherein the at least one cell further comprises: a first cell having a plurality of upright walls, each of the plurality of upright walls having a recessed portion to allow extension and contraction in multiple directions of the first cell; and a second cell having a plurality of upright walls, each of the upright walls having a recessed portion to allow extension and contraction in multiple directions of the second cell; wherein at least one of the plurality of upright walls of the first cell forms at least one of the plurality of upright walls of the second cell such that the recessed portion formed in the at least one of the plurality of upright walls of the first cell extends in a direction opposite to the recessed portion formed in the at least one of the plurality of upright walls of the second cell.