Patent ID: 6899398

Claim:
An assembly comprising: a substantially rigid frame including at least one of a plurality of frame indices and a plurality of frame index recesses; a flexible carrier including at least one of a plurality of carrier indices and a plurality of carrier index recesses; and a load-bearing fabric joined with the flexible carrier, the load-bearing fabric having an expanded state and a relaxed state, wherein said carrier is mounted to the substantially rigid frame so that the at least one of the plurality of frame indices and plurality of frame index recesses cooperate with the at least one of the plurality of carrier indices and the plurality of carrier index recesses to maintain the fabric in the expanded state, wherein at least one of the plurality of frame indices, the plurality of frame index recesses, the plurality of carrier indices, and the plurality of carrier index recesses include a side, the side including a taper corresponding to an amount of expansion of the carrier and the fabric when the carrier is mounted to the frame.