Patent ID: 11959301
Assignee: BELGRAVIA WOOD LIMITED
Field: Civil engineering (Other fields)
Classification: CPC E | IPC E

Claim 11:
12. A fluid container, comprising:
a base comprising a bottom portion defined by a base of a bottom of a predetermined volume, a side portion defined by a side of the predetermined volume, a first end wall defined by an inner side of the predetermined volume, a second end wall defined by an outer side of the predetermined volume;
a first air chamber joined to the base and disposed between the first end wall and the second end wall; and
a second air chamber at least partially above the first air chamber, wherein the second air chamber is joined to the first air chamber, and wherein the second air chamber is disposed between the first end wall and the second end wall;
wherein the side portion includes a recess to accommodate a portion of the side of the predetermined volume.