This is U. S. Patent 4000996
                 Refrigerating package

Abstract

A refrigerating package is disclosed which comprises a multicompartment gussetted design in which the gusset is formed of a folded in or pleated section, with liquid being placed therein. The gussetted compartment is folded into another compartment and is sealed, the other compartment receiving a refrigerating chemical, the opening of the other compartment being sealed after the refrigerating chemicals are loaded therein. By direct application of pressure to the gussetted compartment, a rupture takes place allowing the liquid container therein to mix with the refrigerating chemical thus producing an endothermic or exothermic reaction, as desired.























Description


BACKGROUND OF THE INVENTION

This invention relates to a refrigerating package, and more particularly, to a refrigerating package which is portable in construction and easy to utilize.

Refrigerating packages for cooling or heating are generally well known in which refrigerating chemicals which produce an endothermic or exothermic reaction, respectively, are intermixed with liquid, such as water. Generally, such packages comprise inner and outer bags, with the inner bag containing water while the outer bag contains the refrigerating chemical. The direct pressure is applied to the outer bag causing a rupture of the inner bag and this two bag construction enables portable use to be provided.

The cost of such a two bag construction as well as the method of assembly is somewhat cumbersome and problematic, and improvements over that construction is sought to be made, such as providing a multicompartment of refrigerating package made of a single sheet of material.

































































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