Bag for vacuum packaging of meats or similar products
US4267960A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 29, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Aug 29, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2275/02
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A multi-layer laminated meat package is disclosed which has a panel of the bag adapted for clear sight of the meat inside and another portion of the bag which has a boneguard panel constructed to resist puncture when drawn firmly over protruding bones in the meat. The bag is adapted to be evacuated after insertion of the meat so as to be drawn tightly over the meat, and to have the open end of the bag thereafter heat sealed together to complete the package. In addition, all interior surfaces of the bag are formed of heat sealable materials such that the completed package can be post heated after insertion of the meat to seal areas of the bag which have been drawn together during the evacuation. Embodiments of the bag are disclosed which have more than 50% of the surface of the bag covered by a boneguard panel. Boneguard panels which include a relatively thick layer of foamed plastic are also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.