Refrigerant-containing food or beverage container

Claim 1

A SELF-COOLING FOOD OR BEVERAGE HOLDER COMPRISING: (A) A SEALED OUTER CONTAINER FOR MATERIAL TO BE COOLED (B) AN INNER CONTAINER CARRIED BY A WALL OF THE OUTER CONTAINER AND FILLED WITH EXPANSIBLE REFRIGERANT, SAID INNER CONTAINER ENCOMPASSED BY SAID MATERIAL, AND (C) A FILLER TUBE FOR REFRIGERANT UNDER PRESSURE AND EXTENDING FROM THE INNER CONTAINER, SAID TUBE BEING PROVIDED WITH A CRIMP TO CLOSE THE SAME, THEREBY SEALING THE REFRIGERANT UNDER PRESSURE WITHIN THE INNER CONTAINER, (D) SAID TUBE BEING FRANGIBLE AND ADAPTED TO BE BROKEN AT SAID CRIMP TO VENT THE INNER CONTAINER TO ATMOSPHERE FOR INSTITUTING COOLING OF SAID MATERIAL AS A RESULT OF EXPANSION AND CONVERSION OF THE REFRIGERANT TO A VAPOR AS IT VENTS FROM THE BROKEN END OF THE TUBE, (E) SAID EXPANSION PROMOTING HEAT ABSORPTION IN THE INNER CONTAINER AND HEAT-EXCHANGE COOLING OF SAID MATERIAL, (F) THE OUTER CONTAINER BEING PROVIDED WITH OPPOSITE CLOSURES, ONE OF SAID CLOSURES BEING RECESSED INWARDLY FROM THE ADJACENT END OF SAID CONTAINER FURTHER THAN THE OTHER CLOSURE IS RECESSED FROM ITS ADJACENT END, THEREBY FORMING A WELL, (G) THE CENTRAL PORTION OF SAID ONE CLOSURE CONSTITUTING ONE END CLOSURE OF THE INNER CONTAINER AND THROUGH WHICH THE FILLER TUBE EXTENDS OUTWARDLY, (H) SAID FILLER TUBE, FROM A STRAIGHT FILLING CONDITION, BEING BENT TOWARD THE CLOSURE FROM WHICH IT EXTENDS TO RESIDE WHOLLY WITHIN SAID WELL.