Barrier spout for a flexible bag and a flexible bag having a barrier spout
US9809370B2 · kind B2 · utility
5Cited by
18References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 14, 2014 |
| Grant date | Nov 7, 2017 |
| Priority date | — |
| Expiry date | Dec 31, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D51/22
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A barrier spout having a base flange and an upstand portion. The base flange has a top surface, a bottom surface and an outer surface. The upstand portion has a proximal end extending from the base flange terminating at a distal end. An upper opening is defined at the distal end, and a lower opening is defined at the proximal end. The base flange and the upstand portion each comprise a three layer co-molded configuration including an outer layer, an inner layer and a central layer. The central layer has an oxygen transmission rate that is less than an oxygen transmission rate of either of the outer layer and the inner layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.