Fill behind zipper and fill through the flange zipper
US9027310B2 · kind B2 · utility
0Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 15, 2012 |
| Grant date | May 12, 2015 |
| Priority date | — |
| Expiry date | Oct 12, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S493/927
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The method and apparatus relates to providing a slit, perforation, line of weakness or similar structure in a flange of a zipper for a reclosable package or bag, including a high-capacity zipper. The slit, perforation, line of weakness or similar structure provides an opening for filling the reclosable package or bag without the need to separate the zipper profiles from each other. After filling, the opening is sealed and the cosmetic appearance of the reclosable package or bag is maintained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.