US 12,319,620 B2
Double-walled beverage container and method of forming the same
John Paul Leimone, Oakland, CA (US)
Assigned to Pacific Market International, LLC, Seattle, WA (US)
Filed by Pacific Market International, LLC, Seattle, WA (US)
Filed on Apr. 29, 2022, as Appl. No. 17/733,697.
Application 17/733,697 is a continuation of application No. 16/508,156, filed on Jul. 10, 2019, granted, now 11,338,986.
Claims priority of provisional application 62/696,296, filed on Jul. 10, 2018.
Prior Publication US 2022/0250828 A1, Aug. 11, 2022
Int. Cl. C04B 33/32 (2006.01); A47G 19/22 (2006.01); B65D 13/02 (2006.01); B65D 81/38 (2006.01); B65D 85/72 (2006.01)
CPC C04B 33/32 (2013.01) [A47G 19/2255 (2013.01); B65D 13/02 (2013.01); B65D 81/3869 (2013.01); B65D 85/72 (2013.01); B65D 2205/02 (2013.01)] 18 Claims
OG exemplary drawing
 
1. 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.