Container employing inner liner and vents for thermal insulation and methods of making same
US7510098B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2006 |
| Grant date | Mar 31, 2009 |
| Priority date | — |
| Expiry date | Jun 29, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB31B2120/50
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides a container suitable for providing insulation wherein the container has an inner shrink film liner. The sidewalls of the container, which can be made from paperboard or other suitable material, are vented to allow ambient air to freely flow through the sidewall of the container during activation of the shrink film with hot liquid or other suitable material. When the container is filled with material having a temperature of from about 130° F. to up to about 212° F., the shrink film is activated and the container provides excellent insulation, thereby allowing the container to be held in a consumer's hand for an extended period without causing burns or excessive discomfort. Methods of making this container are also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.