SELF-HEATING OR SELF-COOLING CONTAINERS

摘要

A self-heating or self-cooling container has a sealed can (10) assembled within an outer container (20). The outer container is divided into two chambers (22, 24) divided by a partition (26). Relative movement of the two parts (34, 32) of the outer container (20) causes engagement between the rupturable membrane (26) and piercing means (38) whereby the contents of the two chambers (22, 24) are mixed. For a self-heating container, one of the chambers (24) will contain water and the other (22) quicklime.