Patent ID: 11946280
Assignee: POLYGROUP MACAU LIMITED (BVI)
Field: Civil engineering (Other fields)
Classification: CPC E  Y | IPC E

Claim 9:
10. A pool comprising:
a base;
a side wall joined to the base, together forming a collapsible fluid container, the side wall having an aperture and an interior surface, the interior surface of the side wall being a portion of the side wall exposed to an interior volume of the fluid container;
a porthole comprising a window sheet attached to a surface of the side wall, the window sheet covering the aperture in the side wall; and
a pocket adjacent to the porthole between the window sheet and a pocket sheet configured to extend below a waterline of the collapsible fluid container,
wherein the at least one porthole is attached to the interior surface, wherein the porthole is attached to the interior surface of the side wall by a weld continuous around a perimeter of the aperture.