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

Claim 15:
16. An inflatable mattress comprising:
an outer chamber having:
four sides, each side (i) having first, second, and third arc-shaped segments, wherein the first arc-shaped segment and the second arc-shaped segment are joined together at a first vertex, and the second arc-shaped segment and the third arc-shaped segment are joined together at a second vertex and (ii) 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 first lateral support beam attached to a first inner support wall and to an interior surface of a first side of the four sides;
a second lateral support beam attached to a second inner support wall and to an interior surface of a second side of the four sides;
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; and
a plurality of internal support beams, each internal support beam extending between an interior surface of the bottom and an interior surface of the top at an angle that, when the inflatable mattress is inflated, is non-normal to the top and the bottom,
wherein each of the first and second lateral support beams is approximately equal to a length of a respective one of the four sides.