초록 ▼

A package, packaging method, and packaging apparatus for facilitating the packaging of large meat products and exchanging the ambient atmosphere to establish a desired gaseous atmosphere that extends the shelf life of the product. The package includes a pair of preformed relatively rigid plastic dom

A package, packaging method, and packaging apparatus for facilitating the packaging of large meat products and exchanging the ambient atmosphere to establish a desired gaseous atmosphere that extends the shelf life of the product. The package includes a pair of preformed relatively rigid plastic domed or cupped members which abut along a sealing surface. The upper and lower package portions include flanges which are adapted to facilitate not only the formation of the package but its subsequent opening. A reciprocatable filling tube maintains the separation between the upper and lower package portions to permit gas exchange and then may be reciprocated downwardly to allow the upper package portion to abut atop the lower package portion for sealing connection.

대표청구항 ▼

A package for facilitating gas exchange, comprising: an upper substantially rigid domed package portion; said domed package portion including an upper flange extending away from the remainder of said domed package portion; a lower substantially rigid, dished package portion having a lower flange ext

A package for facilitating gas exchange, comprising: an upper substantially rigid domed package portion; said domed package portion including an upper flange extending away from the remainder of said domed package portion; a lower substantially rigid, dished package portion having a lower flange extending outwardly from the remainder of said dished package portion; each of said package portions including sealing regions for sealing connection to the other package portion; and an aperture located in one of said package portions for permitting selective gas escape from said package, said aperture being covered by a gas permeable plastic sheet secured to said package at a first location, said gas permeable plastic sheet being further covered by a removable gas impermeable plastic sheet secured to said package at a location different from said first location.