Patent ID: 11857078
Assignee: POLYGROUP MACAU LIMITED (BVI)
Field: Furniture, games (Other fields)
Classification: CPC A | IPC A

Claim 8:
9. An inflatable mattress comprising:
an outer chamber having:
four sides, each side in airtight connection with two respective adjacent sides and forming a corner with each of the two respective adjacent sides, each corner having an interior surface;
a top in air-tight connection with the four sides; and
a bottom in air-tight connection with the four sides;
an inner chamber having four inner support walls, each of the inner support walls being air-permeable and attached to the top and the bottom;
a plurality of air-permeable corner support walls, each air-permeable corner support wall extending from a respective interior surface of a corner to a respective corner of the inner chamber;
a first lateral support beam attached to a first inner support wall of the four inner support walls and to a first side of the four sides; and
a second lateral support beam attached to the first inner support wall of the four inner support walls and to the first side of the four sides;
wherein each of the first and second lateral support beams is approximately equal to a length of the respective side panel.