Method for forming carton blanks
US5746871A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 10, 1995 |
| Grant date | May 5, 1998 |
| Priority date | — |
| Expiry date | Aug 10, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T156/1082
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method for forming carton blanks from a continuous laminate having at least a layer of a relatively rigid material and a layer of a relatively flexible fluid impervious material by dividing the continuous laminate into individual carton blanks and at the same time making modified cut lines and fold lines in the individual carton blanks to form top and bottom panel portions, sidewall panel portions and a glue tab panel portion, wherein the modified cut lines extend through the relatively rigid material but not through the relatively flexible fluid impervious material and then removing only the relatively rigid material at various locations to leave the desired carton blank. In some instances, the laminate will contain continuous strips of a relatively flexible material between the relatively rigid material and the relatively flexible fluid impervious material and secured only to the relatively flexible fluid impervious material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.