Insulated beverage or food container
US6852381B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 13, 2002 |
| Grant date | Feb 8, 2005 |
| Priority date | — |
| Expiry date | Jul 6, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/1376
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An insulating beverage or food container or sleeve is produced with a foam layer disposed on an inner surface of a paper stock. A polymer shrink film layer is arranged in a position along an inside surface of the beverage container. The foam layer is sandwiched between the polymer shrink film layer and the paper stock and decreases the energy transfer between the beverage and the user's hands allowing the user to hold onto the container for an extended period of time without causing user discomfort or pain. The polymer shrink film layer is produced from a shrink film polymer having a percent shrink in the range of 30% or less, and more particularly a percent shrink range of 5 to 10%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.