Composite paperboard containers of optimized axial strength construction
US6309717A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 27, 1998 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Oct 27, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31993
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Composite paperboard container constructions, providing optimized axial crush strength, and related properties, are formed of one, two, or three structural paperboard plies that are arranged to form a layered body wall having a cross-section of the construction in the ordered structure, high compression strength paperboard layer.backslash.low compression strength paperboard layer.backslash.high compression strength paperboard layer. Preferably, the container body is formed of one or two structural plies and at least one structural ply is a multiple layer paperboard having both high compression strength and low compression strength paperboard layers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.