Method for manufacturing flexible packages having slide closures
US6675558B2 · kind B2 · utility
16Cited by
116References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 18, 2001 |
| Grant date | Jan 13, 2004 |
| Priority date | — |
| Expiry date | Oct 4, 2021 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B39/003
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
Vertical form fill seal apparatus for making flexible packages with slider fastener closures is provided. A fastener track is applied in-line with a plastic web and is bonded thereto at the same time that a peel seal is formed. All package components are brought together at the point of fill. Prior to assembly at the fill station a series of spaced-apart stop members are formed along the fastener tracks.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.