Disposable thermally insulated cup and method for manufacturing the same
US6536657B2 · kind B2 · utility
57Cited by
31References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 19, 2002 |
| Grant date | Mar 25, 2003 |
| Priority date | — |
| Expiry date | Jul 19, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2481
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A disposable cup comprises a side wall having an outer surface, an inner surface, and at least one air pocket formed on the inner surface. The air pockets are formed by shrink film being adhered to the inner surface in at least one pattern and adapted to pull away from the inner surface in accordance with the pattern upon application of heat at a temperature range sufficient to cause the formation of air pockets. The formed air pockets thermally insulate a portion of the outer cup surface located directly behind the air pockets.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.