Semi-corrugated paperboard panels and method for production of same
US12064943B1 · kind B1 · utility
0Cited by
2References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 20, 2023 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Dec 20, 2043 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D65/403
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A means of making a multi ply structural panel by eliminating the top liner in the corrugating process. The present invention is made possible through modification to the corrugating rolls of the singlefacer. The design modification to the rolls involves incorporation of slots that run around the circumference of one roll and mating creasing tools incorporated around the circumference of the other of the corrugated roll set. These slots and creasing tools are incorporated across the existing flutes of the corrugating rolls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.