Inflatable foil sachet, especially for packaging purposes
US5351828A · kind A · utility
92Cited by
7References
19Claims
0Family size
Inventors
Key dates
| Filing date | Sep 8, 1993 |
| Grant date | Oct 4, 1994 |
| Priority date | — |
| Expiry date | Sep 8, 2013 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/7138
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The invention relates to a foil sachet (1) with at least one chamber (7) consisting of an upper and lower foil (2, 3) secured together by a closed seam (5, 6). In order to fill the chambers (7) with a substance, especially air, there is a channel (10, 14) having channel sections (14) opening in the region of a seam (5, 6) and preferably in the region of the corner of the chamber concerned where there is an aperture in said chamber. There are preferably a main (10) and a subsidiary channel (14), wherein the main channel may also run outside the foil sachet (1).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.