Closure strips for a sheet or a bag, and a resulting sheet or a bag
US7604407B2 · kind B2 · utility
1Cited by
4References
42Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 28, 2006 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Jul 22, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/2534
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a fastener or closure assembly for fitting to a sheet or to the mouth of a packaging bag, and comprising at least one fastener or closure strip formed by a support web and a fastener or closure element carried by the web, the assembly including sequential cuts occupying a fraction of the width of the support web of the strip, outside the fastener or closure element and distributed over the length of the assembly in order to suppress the effects of warping, curving, or curling of the assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.