Method and apparatus for vacuum packaging
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United States of America Patent
Stats
-
Feb 7, 1995
Grant Date -
N/A
app pub date -
Jul 12, 1993
filing date -
Jul 12, 1993
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
The track for a pressure chamber overlaps the track for a clamper in movement while clamping a bag filled with an article, at a position beneath the latter track and with a level difference. The bag supported by the clamper is held, at its upper edge positioned right below the clamper, between the upper side of a chamber body of the pressure chamber and the upper side of a cover and in a sealed condition. The air in the bag is expelled through a notched line formed in an upper portion of the bag as the pressure within the pressure chamber is reduced, and then the bag is sealed at a position below the notched line.
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