Double wall stainless steel drinking container
A drinking container having a stainless steel inner wall having an inner surface and an outer surface and a stainless steel outer wall having an inner surface and an outer surface, wherein a gap is formed between the outer surface of the inner wall and the inner surface of the outer wall and wherein a vacuum is pulled in the gap, wherein the outer surface of the outer wall is coated with a ceramic-like sol-gel coating as an outer coating. The drinking container may also include a lower bushing placed along a top side of the bottom surface of the inner wall, a ceramic insert placed over the lower bushing, an upper bushing placed over a top edge of the ceramic insert and a collar locked on one of the inner wall, the outer wall, or a combination thereof, the collar positioned over the upper bushing.
1. A drinking container, comprising:
a stainless steel inner wall having an inner surface and an outer surface; and
a stainless steel outer wall having an inner surface and an outer surface, wherein a gap is formed between the outer surface of the inner wall and the inner surface of the outer wall and wherein a vacuum is pulled in the gap,
wherein the outer surface of the outer wall is coated with a ceramic-like sol-gel coating as an outer coating,
wherein hardness, abrasion resistance and durability of the drinking container is based on a density of the ceramic-like sol-gel coating applied as a dry-film to the outer surface of the outer wall.
2. The drinking container of claim 1 , wherein the outer coating has a maximum heat tolerance of 930° F. and has a curing temperature of 535° F.
3. The drinking container of claim 1 , wherein the outer coating has a thickness ranging from 25 to 70 microns.
4. The drinking container of claim 1 , wherein the outer coating is waterborne and has a hardness to prevent the outer coating from being chipped or otherwise removed.
5. The drinking container of claim 1 , wherein the inner surface of the inner wall is coated with a ceramic-like sol-gel coating as an inner coating.
6. The drinking container of claim 5 , wherein the inner coating has a maximum heat tolerance of 850° F.
7. The drinking container of claim 5 , wherein the inner coating is waterborne and has a hardness to prevent the inner coating from being chipped or otherwise removed.
8. The drinking container of claim 5 , wherein the inner coating maintains a taste profile of a fluid stored in the drinking container.
9. The drinking container of claim 1 , further comprising:
a lid constructed of a first material, wherein exposed outer surfaces of the lid are coated with a ceramic-like sol-gel coating.