Packaging method and apparatus

Details Packaging method and apparatus Packaging method and apparatus

1989-09-15

1990-05-22

Culver, Horace M.

Package making

Methods

With contents treating

53512, B65B 3102, B65B 3106

Patent

active

049266144

ABSTRACT:
In its preferred form the invention comprises a method and apparatus for packaging products such as foodstuffs, whereby the product is held in flexible bag inside a chamber, and the bag is substantially evacuated and then filled with a gas such as carbon dioxide, with pressure in the chamber on the outside of the bag being reduced during the evacuation to prevent entrapment of air in the bag.

REFERENCES:
patent: 3659393 (1972-05-01), Richter
patent: 3832824 (1974-09-01), Burrell
patent: 3851437 (1974-12-01), Waldrop et al.
patent: 4058953 (1977-11-01), Sanborn, Jr. et al.
patent: 4541224 (1985-09-01), Mugnai
patent: 4578928 (1986-04-01), Andre et al.
patent: 4583347 (1986-04-01), Nielsen
patent: 4744199 (1988-05-01), Gannon

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