Method for packaging perishable products
US4919955A · kind A · utility
Inventor
Key dates
| Filing date | Jun 27, 1988 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Jun 27, 2008 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N30/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for packaging perishable products is disclosed, said method and apparatus enabling the alteration of the gaseous environment surrounding a given product. The packaging system can be readily prepared for immediate transport and aging, retail display and consumer freezing. The present system comprises a relatively rigid tray which is sealed with a flexible gas impermeable cover, said tray being provided with a resealable septum valve. The tray is also preferably provided with a plurality of protrusions or mounds so as to facilitate gas flow and contact with a given perishable product. The atmosphere in the packaging system may be modified to inhibit bacterial decay of the product and/or to enhance its appearance. Likewise, the package may be prepared for freezing by drawing a substantial vacuum within the packaging system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.