Modifield atmosphere package for cut of raw meat
US5698250A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 3, 1996 |
| Grant date | Dec 16, 1997 |
| Priority date | — |
| Expiry date | Apr 3, 2016 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D81/268
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A modified atmosphere packaging system and method creates a modified atmosphere in a package including an inner container and an outer container. The inner container is composed at least partially of a polymeric material substantially permeable to oxygen, while the outer container is composed of a polymeric material substantially impermeable to oxygen. After a food product such as raw meat is placed within the inner container, the inner container is flushed with a desired mixture of gases to substantially remove oxygen from the inner container. The flushed inner container is then sealed and inserted into the outer container without sealing the outer container. Next, the outer container is flushed with the desired mixture of gases to substantially remove oxygen from the outer container. After flushing the outer container, the outer container is sealed. An oxygen scavenger is provided in the package to substantially absorb any residual oxygen within the package.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.