Double-walled beverage container and method of forming the same
AssigneePacific Market International, LLC
InventorJohn Paul Leimone
Life of this patent
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Abstract
Provided are ceramic compositions and containers, in each case comprising a ceramic (e.g., porcelain, stoneware, porcelain, or ceramic composition having properties of both) composition to which an amount of alumina has been added to provide a ceramic composition comprising 20% to 25% (wt./wt.) alumina, preferably about 22% (wt./wt.) alumina, providing a stronger material, such that wall thicknesses (e.g., of double-walled beverage containers) can be reduced or minimized to create a lighter double-walled ceramic container. The disclosed containers have a chemical and porous structure suitable for a wide array of stoneware glazes, and display water absorption rate properties comparable to stoneware. Methods of making same are provided.
Claims18
A method of forming a beverage container, comprising:
- obtaining a porcelain composition;
- adding an amount of alumina to the porcelain composition, forming a ceramic composition comprising between 20% to 25% (wt./wt.) alumina;
- forming a double-walled beverage container using the ceramic composition;
- firing the double-walled beverage container formed of the ceramic composition at a temperature in a range of 1,210° C. to 1,230° C. using an oxidation atmosphere, forming a fired ceramic product, wherein the fired ceramic product has a water absorption in a range of 0.7% to 1.1% (wt./wt.);
- and
- glazing the double-walled beverage container with a stoneware glaze.
Dependencies are inferred from the claim text.