Apparatus for making easy open and reclosable bags
US4682976A · kind A · utility
39Cited by
4References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 23, 1986 |
| Grant date | Jul 28, 1987 |
| Priority date | — |
| Expiry date | May 23, 2006 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65B9/2056
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An easy open and reclosable bag has flexible sheet walls sealed together to form a pouch. A separable reclosure tie is located adjacent one of those seals. The reclosure tie is composed of extensions of the bag walls which have an integral channel-shaped molding spaced from that seal. A line of specially shaped, closely spaced apart perforations through the bag walls extends between the molding and the one seal to permit the reclosure tie to be separated from the pouch-defining walls of the bag. Apparatus for making the easy open and reclosable bag is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.