Evacuable container having one-way valve with filter element
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United States of America Patent
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-
Jan 4, 2005
Issued Date -
N/A
app pub date -
Feb 24, 2003
filing date -
Dec 15, 1993
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A one-way valve allows air to be drawn from a collapsible, flexible, air-tight bag using a vacuum source. When the vacuum source is removed, the one-way valve prevents air from re-entering the bag. A filter is placed on the valve body to prevent small particles from the bag from clogging the valve or the vacuum source.
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