Patent ID: 7234184

Claim:
An inflatable air cushion comprising: a cover comprising an outer surface and an inner surface; a gas containment chamber capable of forming a three-dimensional space filled with gas, first direction axis, a second direction axis and a third axis defining the three-dimensional space, wherein all axes are perpendicular to each other; an inflation device installed on the cover; a plurality of first tension members, wherein each first tension member is a strap member and comprises at least two ends, the two ends of each first tension member are connected to the inner surface of the cover so that the first tension members along the first direction axis come under tension when the inflatable air cushion is inflated; and a plurality of second tension members, wherein each second tension member is a sheet member having a plurality of apertures and each first tension member being disposed through apertures of the second tension members, and each second tension member comprises at least two ends, the two ends of each second tension member connected to the inner surface of the cover so that the second tension members along the second axis come under tension when the inflatable air cushion is inflated.