Exothermic semi-rigid plastic stick

Abstract

A semi-rigid, portable, warming device contains chemical reactants that produce heat when mixed. The warming device includes at least two chambers, which contain the chemical reactants separately, until a force is applied to cause the reactants to mix.

1 . A self contained, personal warming device, comprising:
 a sealed outer tube;   a first reactant contained within the sealed outer tube; and   a second reactant contained within the sealed outer tube, the first and second reactants being maintained separated from one another,   wherein the first and second reactants are mixed with one another to create an exothermic reaction within the sealed outer tube.   
     
     
         2 . The self contained, personal warming device in accordance with  claim 1  wherein the first reactant is contained within the sealed outer tube and the second reactant is contained within a sealed frangible element within the sealed outer tube, and wherein the frangible element is fractured to mix the first and second reactants. 
     
     
         3 . The self contained, personal warming device in accordance with  claim 1  wherein the first and second reactant are contained within separate sealed frangible elements within the sealed outer tube, and wherein the frangible elements are fractured to mix the first and second reactants. 
     
     
         4 . The self contained, personal warming device in accordance with  claim 1  including reactants that, when mixed with one another, create a chemiluminescent reaction. 
     
     
         5 . A portable warming device, comprising:
 at least two chambers, the at least two chambers comprising a first chamber and a second chamber;   at least two chemical reactants contained in the at least two chambers, the at least two chemical reactants comprising a first reactant and a second reactant, wherein the first reactant is different from the second reactant, wherein the first reactant and the second reactant produce heat when mixed together,   wherein the first chamber contains the first reactant, and the second chamber contains the second reactant, and   wherein at least one of the first chamber and the second chamber is configured to release the reactant contained in the chamber when a force is applied, such that the first reactant and the second reactant are mixed together to produce heat.   
     
     
         6 . The portable warming device of  claim 5 , wherein the second chamber is arranged in a cavity of the first chamber, the second chamber being an ampoule; wherein the first reactant is contained in a portion of the cavity of the first chamber, and the second reactant is contained in the ampoule. 
     
     
         7 . The portable warming device of  claim 6 , wherein the first chamber is formed of a semi-rigid polymeric material that is bendable, and the ampoule is formed of a frangible material that ruptures when the portable warming device is bended or squeezed. 
     
     
         8 . The portable warming device of  claim 5 , wherein the portable warming device includes an outer container and a plurality of ampoules arranged in a cavity of the outer container, wherein the first chamber is a portion of the outer container that is not occupied by the ampoules, and the second chamber is one of the plurality of ampoules, wherein each of the ampoules contains a chemical reactant. 
     
     
         9 . The portable warming device of  claim 8 , wherein at least two of the plurality of ampoules contain reactants for a chemiluminescence reaction. 
     
     
         10 . The portable warming device of  claim 8 , wherein the outer container has a tubular shape and formed of a semi-rigid polymeric material; and each of the plurality of ampoules is formed of a frangible material that ruptures when a force is applied. 
     
     
         11 . The portable warming device of  claim 8 , wherein at least one of the plurality of ampoules contains calcium oxide, and at least another one of the plurality of the ampoules or the first chamber contains water. 
     
     
         12 . The portable warming device of  claim 11 , wherein the first chamber contains water, and at least one of the plurality of ampoules contains magnesium. 
     
     
         13 . A stick warmer, comprising:
 an outer container, the outer container containing a first chemical reactant;   at least one ampoule arranged in the outer container, at least one of the at least one ampoule containing a second chemical reactant that is different from the first chemical reactant;   wherein the first chemical reactant and the second chemical reactant produce heat when mixed.   
     
     
         14 . The stick warmer of  claim 13 , wherein the outer container has a tubular shape, and formed of a semi-rigid polymeric material that is bendable. 
     
     
         15 . The stick warmer of  claim 14 , wherein the at least one ampoule is formed of a frangible material, the at least one ampoule being surrounded by the first chemical reactant. 
     
     
         16 . The stick warmer of  claim 15 , wherein the at least one ampoule is configured to rupture when a force is applied on the outer container by bending, squeezing or twisting. 
     
     
         17 . The stick warmer of  claim 13 , further containing chemical reactants for a chemiluminescence reaction. 
     
     
         18 . The stick warmer of  claim 17 , wherein the stick warmer produces heat and light when a force is applied on the outer container by bending, squeezing or twisting. 
     
     
         19 . The stick warmer of  claim 13 , wherein the at least one ampoule comprises a first ampoule, a second ampoule, and a third ampoule arranged in the outer container, spaced from each other.