Vacuum packaging bulk commodities

Details Vacuum packaging bulk commodities Vacuum packaging bulk commodities

1977-03-28

1979-01-02

Weinstein, Steven L.

Package making

Methods

With contents treating

53 86, 53512, 426410, 426412, 426415, B65B 3102, B65B 5302

Patent

active

041320484

ABSTRACT:
A process for packaging bulk commodities such as meat comprises vacuum sealing the commodity into a bag of plastics material and then causing the material of the bag to expand by a further reduction in pressure of the environment surrounding the bag. The material expands into contact with heaters which heat the material and when the environment surrounding the bag is returned to normal pressure, the material closely encloses the commodity.

REFERENCES:
patent: 2071300 (1937-02-01), Gammeter
patent: 3026656 (1962-03-01), Rumsey, Jr.
patent: 3625348 (1971-12-01), Widiger et al.
patent: 3688463 (1972-09-01), Titchenal
patent: 3759722 (1973-09-01), Simon
patent: 3832824 (1974-09-01), Burrell
patent: 3958391 (1976-05-01), Kujubu

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