Refrigeration – Chemical reaction or solids dissolving
Patent
1995-10-30
1997-05-06
Doerrler, William
Refrigeration
Chemical reaction or solids dissolving
62371, 12626301, 12626308, F25D 500
Patent
active
056260229
ABSTRACT:
An container for holding a material, such as a food, beverage or medicine, includes a cap and a container body. The container body has a material cavity unitarily formed with a reactant cavity. The reactant cavity contains a solid reactant, and the cap contains a liquid reactant 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 closing one end and a breakable barrier closing the other end. With the exception of the barrier, the cap is of unitary construction. The cap has one or more prongs 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 of the container that defines the reactant cavity may be pleated or corrugated to promote heat transfer.
REFERENCES:
patent: 3970068 (1976-07-01), Sato
patent: 4784678 (1988-11-01), Rudick et al.
patent: 5088870 (1992-02-01), Fukuhara et al.
patent: 5255812 (1993-10-01), Hsu
patent: 5461867 (1995-10-01), Scudder et al.
Berntsen James L.
Scudder James A.
Doerrler William
Insta-Heat, Inc.
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