| 摘要 |
A container body (10) for food or beverages has a peripheral wall (12), a top opening (14), and a re-entrant shaped base member (16). The base member (16) defines external cavity (20) which extends within the peripheral wall (12). The container body (10) is made from a sheet of metal by appropriate drawing, redrawing, wall lining and rolling processes such that it has a unitary construction. The container body (10) has the same external dimensions as conventional beverage or food cans so that it can be filled and processed on conventional filling lines. The provision of a container body (10) of unitary construction reduces the number of operations in the manufacturing process whereby the cost of manufacture of the container is reduced. The external cavity within the container can be used to enable a self-heating or self-cooling container to be produced. |
