Vacuum package with smooth surface and method of making same

Details Vacuum package with smooth surface and method of making same Vacuum package with smooth surface and method of making same

1990-05-09

1992-03-24

Fidei, David T.

Special receptacle or package

Evacuated

206484, 428166, 428198, 383109, 383116, B65D 8120

Patent

active

050979566

ABSTRACT:
A vacuum package is made of flexible laminate capable of being stored as roll stock. The laminate comprises laminated inner and outer layers providing desired mechanical properties, secured together at patterned areas to facilitate the passage of gas between the layers, and is provided with a hand peelable sealing strip at an area which, when the laminate is formed into a bag and the mouth sealed, extends around the periphery of the mouth of the package. When the laminate is formed into a bag, the application of vacuum to the interior of the bag results in the inner layer conforming to the contours of the contents, while ambient air between the layers enables the outer layer to maintain a desirable and aesthetically pleasing smooth surface texture.

REFERENCES:
patent: 3574642 (1971-04-01), Weinke
patent: 3770122 (1973-11-01), Thiele
patent: 4055672 (1977-10-01), Hirsch et al.
patent: 4135622 (1979-01-01), Glick
patent: 4705174 (1987-11-01), Goglio
patent: 4727706 (1988-03-01), Beer
patent: 4756422 (1988-07-01), Kristen
patent: 4823961 (1989-04-01), Griesbach et al.

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