METHODS FOR MAKING A CONTAINER, AND RELATED SYSTEMS
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United States of America Patent
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Issued Date -
Jul 27, 2023
app pub date -
Jan 4, 2021
filing date -
Jan 3, 2020
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Abstract
A method for making a container includes forming a first cavity of a container by shaping an inner wall so that a first surface of the inner wall defines the first cavity; forming a second cavity of the container by shaping an outer wall so that a third surface of the outer wall surrounds a second surface of the inner wall such that together the third and second surfaces define the second cavity; and connecting the inner and outer walls together. The method then includes forming a hole through the outer wall to expose the second cavity to the outside ambient environment and then applying an enamel coating, while preventing the enamel coating from being deposited in the hole. After the enamel coating is applied, the method includes heating the container to glaze the enamel coating and fix the coating to the one or more surfaces.
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