Chemical thermal package with three separate chambers

Claim 1

A CHEMICAL PACKAGE A CONTAINING AT LEAST ONE CHEMICAL REACTANT (72) AND AN ACTIVATING LIQUID (60) AND COMPRISING THREE GENERALLY RECTANGULAR OUTER, SECOND AND INNER CONTAINERS, EACH OF SAID CONTAINERS BEING CONSTRUCTED FROM A THIN FLEXIBLE MATERIAL AND HAVING A CONTINUOUS SIDEWALL WITH THE ENDS THEREOF HERMETICALLY SEALED BY LATERAL SEAMS, THE OUTER CONTAINER, BEING A PROTECTIVE COVER ENVELOPING THE SECOND CONTAINER, THE SECOND CONTAINER CONTAINING A PREDETERMINED ANOUT OF A CHEMICAL REACTANT AND ENVELOPING THE INNER CONTAINER, THE INNER CONTAINER CONTAINING A PREDETERMINED AMOUNT OF THE ACTIVATING LIQUID, ONE END OF SAID INNER CONTAINER BEING CLOSED AFTER FILLING WITH THE ACTIVATING LIQUID BY A LATERAL SEAM (66) SPACED AT A DISTANCE FROM SAID LIQUID SO AS TO PROVIDE ROOM FOR EXPANSION THEREOF, SAID ONE END OF SAID INNER CONTAINER BEING POSITIONED AT ONE END OF SAID SECOND CONTAINER BY A LATERAL SEAM (70) ON SAID SECOND CONTAINER, SAID DUAL LATERAL SEAMS ASSURING THAT THE ACTIVATING LIQUID WILL NOT FLOW FROM THE INNER CONTAINER IN THE EVENT ONE OF SAID DUAL LATERAL SEAMS SHOULD BE BROKEN, SAID INNER AND SECOND CONTAINERS BEING POSITIONED AT ONE END OF SAID OUTER CONTAINER BY A LATERAL SEAM (78) ASSURING THAT SAID INNER CONTAINER HOLDING SAID ACTIVATING LIQUID AND SAID SECOND CONTAINER HOLDING SAID CHEMICAL REACTANT WILL NOT FLOAT WITHIN SAID OUTER CONTAINER, AND FURTHER ASSURING THAT THE ACTIVATING LIQUID WILL NOT FLOW FROM THE INNER CONTAINER IN THE EVENT BOTH OF SAID DUAL LATERAL SEAMS SHOULD BE BROKEN.