Patent ID: 8418285

Claim:
An inflatable device comprising: a first surface; a second surface, opposite said first surface; a first side wall between said first and second surfaces; a second side wall opposite said first side wall and between said first and second surfaces; a plurality of columns extending from the interior of said first surface toward the interior of said second surface and extending along said interior of said first surface for a substantial portion of the distance between said first side wall and said second side wall; and a plurality of channels, wherein each of said channels substantially occupies the space between two of said columns and said interior of said first surface and extending along said interior of said first surface for a substantial portion of said distance between said first side wall and said second side wall, wherein said columns are capable of containing the inflation pressure of said inflatable device in such a way as to allow a fluid to flow through each of said channels at substantially lower pressure levels than said inflation pressure, wherein said plurality of said channels is configured to form a single path capable of allowing each of said channels to carry said fluid with equal flow rate.