Method for creating a package pressure differential
AssigneeJames A. Donovan
InventorRaquel Carvallo
Life of this patent
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Abstract
A method for making a two component device where the two components are in separate containers with one container inside the other. The method includes placing a first container between the top and bottom of a second container in a die that draws a vacuum between the top and bottom of the second container when they are sealed to form the container. The vacuum preferably ranges from about 8 to about 13 psi. The two components are selected to react to achieve a result, such as the generation of heat.
Claims13
A method for making a two component system, comprising the steps of:
- forming a first container having a first component therein;
- placing a first and second portion of a second container in a die for forming a second container including a second component, the first container being positioned between the first and second portions of the second container and the die having an upper and lower portion adapted to come together;
- and
- drawing a vacuum in the lower portion of the die while moving the upper and lower portions together to seal the first and second portions of the second container together to form the second container with a vacuum pressure inside, the first container remaining inside the second container and having atmospheric pressure inside.
A method for making a two component system, comprising the steps of:
- forming a first container having a first component therein;
- placing a first and second portion of a second container in a die for forming a second container including a second component, the first container being positioned between the first and second portions of the second container and the die having an upper and lower portion adapted to come together;
- drawing a first vacuum in the upper portion of the die to retain the first portion of the second container on the upper portion of the die;
- and
- drawing a second vacuum in the lower portion of the die while moving the upper and lower portions together to seal the first and second portions of the second container together to form the second container with a vacuum pressure inside of from about 8 psi to about 13 psi, the first container remaining inside the second container and having atmospheric pressure inside.
Dependencies are inferred from the claim text.