Easily alignable zipper for reclosable packaging
US6789946B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2001 |
| Grant date | Sep 14, 2004 |
| Priority date | — |
| Expiry date | Oct 23, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/2534
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A plastic zipper for use in a reclosable package or bag. The zipper includes a pair of fastener strips respectively having male and female interlockable members formed thereon. The male member has a profile with an expanded head. The female member has a profile with a groove for receiving the expanded head of the male member. The female member preferably includes a base, first and second walls extending from the base, first and second hooks respectively extending from the first and second walls toward a center plane of the female member, and first and second wings respectively extending from the first and second walls away from the center plane. The wings have surfaces for guiding an impinging male member toward an opening defined by the hooks of the female member. Preferably, the plastic zipper has a target width to zipper height ratio substantially equal to or greater than unity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.