Foam in bag packaging system for manual use
US5996782A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 14, 1997 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Apr 14, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/3266
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A foam in bag cushion precursor is disclosed that is particularly useful for manual operation. The cushion precursor comprises a bag formed of two sheets of flexible plastic film material closed on all four side edges; a frangible seal that defines separate interior cells in a portion of the bag; a first foam precursor composition in one of the interior cells; and a second foam precursor composition in another of the interior cells. One of the cells has a nonfrangible seal wall other than one of the side edges for directing the contents of the cell to mix with the contents of the other cell before the mixed contents enter the remaining portion of said bag.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.