摘要 |
<p>A container for holding a material, such as food, beverage or medicine, includes a cap and a container body. The container body has a material cavity (214) unitarily formed with a reactant cavity (216). The reactant cavity contains a solid reactant (246), and the cap (212) contains a liquid reactant (236) that, when mixed, produce an endothermic or exothermic reaction, depending upon the reactants selected. The cap has a tubular body section with an actuator disc (228) closing one end and a breakable barrier (234) closing the other end. With the exception of the barrier, the cap is of unitary construction. The cap has one or more prongs (230) extending from the inner surface of the disc toward the barrier. When a user depresses the actuator disc, it flexes inwardly and moves the prongs toward the barrier. The reactants mix when the prongs puncture the barrier. Heat transferred between the two cavities heats or cools the material The wall (224) of the container that defined the reactant cavity may be pleated (216) or corrugated to promote heat transfer.</p> |