Flexible pouch with reinforcement to facillitate pouring
US5005734A · kind A · utility
46Cited by
28References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 23, 1989 |
| Grant date | Apr 9, 1991 |
| Priority date | — |
| Expiry date | Mar 23, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S383/906
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A flexible pouch made from at least one layer of plastic material bonded to form a closed inner chamber for storing liquid. Peripheral portions of the wall material are contoured and then bonded to form a closed pouring spout at a corner of the pouch. The configuration of the spout is defined by the contour of the bonding in the vicinity of that pouch corner. The pouring spout is opened by cutting the pouch corner at an angle. The flexible walls of the pouch are reinforced in the vicinity of the pouring spout to prevent folding. The open spout is intended to be inserted in the open neck of a container to be refilled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.