Laminated packing bag with spout formed from handle portion
US4454979A · kind A · utility
44Cited by
15References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1981 |
| Grant date | Jun 19, 1984 |
| Priority date | — |
| Expiry date | Aug 25, 2001 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S383/906
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A packing bag is formed by sealing longer side edges, and by sealing V shaped folded sheets to the shorter sides. A portion of the longer side edges is left unsealed to form an inlet port. A protected cylinder or handle may be attached to overlie the inlet port. Opposed notches are formed on both sides of the cylinder or handle to facilitate opening of the bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.