In-folded fin seal end closure
US4588122A · kind A · utility
7Cited by
5References
2Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 3, 1985 |
| Grant date | May 13, 1986 |
| Priority date | — |
| Expiry date | Sep 3, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S229/93
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
There is disclosed a flat end closure arrangement for a thermoplastic coated paperboard container, and the blank therefor, wherein a suitable adhesive or anti-sealant is applied to four sets of four quadrant areas around intersections of score lines about which adjacent panels are folded both laterally and longitudinally in substantially 180.degree. bends, to provide areas of slippage between selected adjacent panels, thereby diminishing the chances of cracking of the thermoplastic coating at the bend locations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.