Patent ID: 9108789
Filing Date: 2015-08-18
Classification: B29C,B29K,B29L,B32B,B65D,H05B,Y10T

Abstract:
1. A method of adding a fusible material to a container wall of a self-heating container, wherein the fusible material is or contains a suppressant for a user-initiated exothermic chemical reaction, the method comprising: providing a product container having a metallic wall, wherein the product container is adapted to contain a food or beverage product to be heated by said exothermic chemical reaction, and wherein the product container is an inner cup of said self-heating container that comprises said inner cup and an outer cup; positioning the fusible material, in the form of a wax ring at a temperature at which the fusible material is a solid, in contact with an outer surface of said inner cup; heating at least a portion of the metallic wall with an electromagnetic induction ring surrounding said wax ring and said product container such that the portion of the metallic wall thereby heated causes an adjacent contacting surface of the fusible material to melt, wherein the heating of the portion of the metallic wall occurs by virtue of the electromagnetic induction ring inducing electrical current in the metallic wall; and enabling the melted fusible material at said adjacent contacting surface to cool and re-solidify, thereby adhering the fusible material to the metallic wall, wherein the fusible material adheres to a side of the metallic wall such that when the fusible material is exposed to heat from the exothermic chemical reaction and melts, the fusible material is released from the metallic wall, drops into the exothermic chemical reaction and at least partially suppresses the exothermic chemical reaction, and wherein the fusible material adhered to the metallic wall conforms to a shape of the metallic wall.