Easily openable fastener tape, packaging bag with easily openable fastener tape, and method of manufacturing easily openable fastener tape
US8753011B2 · kind B2 · utility
3Cited by
8References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2007 |
| Grant date | Jun 17, 2014 |
| Priority date | — |
| Expiry date | Aug 24, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/2534
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A belt-shaped base of a male member of a zipper tape attached on an inner surface of a bag body includes a main body provided with an engagement portion, a thin portion connected to an opening-side of the main body, a thick portion connected to an opening-side of the thin portion and a projecting portion provided on the thick portion. A female member is also provided with the same arrangement. When the zipper tape is fused with the bag body, a gap is provided between the thin portion and a film of the bag body and between the thin portion and a film of the bag body, so that the thin portions are easily bent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.