Container and method of forming a container

A method of forming an insulated container comprising:

• forming a metallic outer shell with a first opening at a top end of the outer shell, wherein the outer shell comprises an outer sidewall, an outer bottom wall, and a lower cavity on the outer bottom wall, wherein the lower cavity is spaced inward from the outer sidewall;
• forming a metallic inner shell with a second opening at a top end of the inner shell, wherein the inner shell has an inner sidewall and an inner bottom wall;
• placing a support member onto the outer bottom wall of the outer shell, wherein the support member comprises a ceramic material, wherein the support member is free of contact with the outer sidewall;
• placing the inner shell into the first opening of the outer shell, wherein the inner bottom wall of the inner shell contacts an upper surface of the support member;
• positioning an upper edge of the inner shell to align with an upper edge of the outer shell to compress the support member, wherein the support member is compressed to reduce a height of the support member at least 30 percent from a height of the support member in an uncompressed state;
• integrally joining the upper edge of the inner shell to the upper edge of the outer shell;
• and
• evacuating a mass of gas from a cavity between the outer shell and the inner shell to form a vacuum sealed cavity between the outer shell and the inner shell.

An insulated container comprising:

• a metallic outer shell comprising an outer sidewall and an outer bottom wall, wherein the outer bottom wall has a lower ring-shaped cavity spaced inward from the outer sidewall, the lower ring-shaped cavity including an inner cavity wall, an outer cavity wall, and a bottom cavity wall;
• a metallic inner shell defining an inward facing surface comprising an inner sidewall and an inner bottom wall, wherein the inner bottom wall includes a planar central region;
• the outer shell being integrally joined to the inner shell forming an insulated double wall structure with a sealed vacuum cavity between the outer shell and the inner shell, wherein an upper edge of the outer shell is integrally joined to an upper edge of the inner shell;
• the insulated container having a top opening extending into a storage cavity, wherein the storage cavity has a volume within a range of 1800 cubic centimeters and 4000 cubic centimeters;
• and
• a support member located between the outer bottom wall and the inner bottom wall, wherein the support member is located adjacent to the inner cavity wall and contacts the inner shell and the outer shell, wherein the support member is free of contact with the outer sidewall, and wherein a height of the support member is compressed greater than 30 percent from an uncompressed state.