Vacuum packaging method and apparatus

Details Vacuum packaging method and apparatus Vacuum packaging method and apparatus

1990-08-08

1991-11-05

Sipos, John

Package making

Methods

With contents treating

53479, 53512, 533748, B65B 3102

Patent

active

050622528

ABSTRACT:
Vacuum packaging method and apparatus for heat sealable bags in which a clamp is used to effect a temporary air-tight seal of an evacuated bag while the bag is transported through a region of atmospheric pressure to a heat sealer. After heat sealing to effect a permanent air-tight closure, the clamp is open and the bag removed.

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patent: 4640081 (1987-02-01), Kawaguchi et al.
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