Dual wall insulated container and method for making the same
US5950917A · kind A · utility
65Cited by
22References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1997 |
| Grant date | Sep 14, 1999 |
| Priority date | — |
| Expiry date | Jul 14, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S220/903
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A dual wall container formed of a laminated blank wrapped about the longitudinal axis of the container to define a inner sidewall and an outer sidewall. The laminated blank comprises an inner sheet affixed to an outer sheet, wherein expansion joints may be provided on the outer sheet to enable the same to increase in circumference as the container is formed. Preferably, scores are provided within the inner sheet so as to form annular air pockets extending circumferentially around the container between the inner and outer sidewalls for uniform insulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.