Dual walled container
US5524817A · kind A · utility
71Cited by
31References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1995 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Apr 4, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/3869
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dual walled insulating paperboard container is disclosed. The container preferably includes an inner cup and an outer cup each having tapered sidewalls. The sidewalls, however, have different angles of taper to provide an insulating cavity therebetween. Additionally, the bottom of the inner cup is spaced from the bottom of the outer cup to create an insulating barrier along the bottom of the container. The outer cup also includes a stepped region along its top that cooperates with a curled top edge of the inner cup to provide another insulating cavity along the top of the container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.