Tear strip creation on zipper flanges
US9238526B2 · kind B2 · utility
3Cited by
13References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2011 |
| Grant date | Jan 19, 2016 |
| Priority date | — |
| Expiry date | Nov 28, 2032 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/2534
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The disclosure pertains to various embodiments of zippers with a tear flange for use in a reclosable flexible package or bag. A line of weakness can be introduced into the tear flange by application of a peel seal polymer resin or of a foaming agent. The disclosure includes further embodiments wherein lines of weakness are introduced into the flange of zippers in reclosable packages or bags.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.