Patent ID: 7469431

Claim:
A nestable box spring foundation comprising: a generally rectangular perimeter frame having four sides; a grid having longitudinally and laterally extending grid wires secured at opposite ends to said perimeter frame to define a plurality of generally rectangular openings across said perimeter frame; and, pairs of generally U-shaped support members having a pair of legs joined at respective base ends thereof to a base portion and spaced apart at respective outer ends thereof opposite said respective base ends, said pairs of support wire members being welded at their outer ends to adjacent grid wires such that the base portions of each support wire member are fixedly held adjacent to each other, to thereby define a plurality of open generally pyramidal supports opening toward but extending away from said grid for supporting said grid and in turn said perimeter frame, wherein the paired wire support members are mounted within alternate grid openings only and do not extend across adjacent grid openings such that the paired wire support members are spaced apart by at least one grid opening, and wherein a plurality of said paired wire support members are positioned along each of the four sides of the box spring adjacent the generally rectangular frame; said supports being nestable in corresponding supports of an adjacent of said nestable box spring foundation.