Patent ID: 7021008

Claim:
An inflatable device, comprising: an inflatable interior frame having a pair of side walls, a pair of end wall interconnected to the side walls, a center wall extending parallel to the side walls and interconnecting with the end walls at opposite ends, and a rib wall extending parallel to the end walls and interconnecting with the side walls at opposite ends, said rib wall interconnecting with the center wall at a midpoint, each of said end walls, said rib wall, and said center wall having a pair of air passages defined therein; a valve disposed in one of said end walls for receiving an air pump; an outer inflatable structure substantially encasing said interior frame to define a main air chamber, said outer structure having an opening defined therein; whereby, upon inflating the interior frame ambient air is drawn tbrnugh the opening of the outer structure into the main chamber and the interior frame become sufficiently rigid to support the outer structure.