Closing structure of a dispensing container
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United States of America Patent
Stats
-
Jan 6, 2004
Grant Date -
Sep 19, 2002
app pub date -
Feb 4, 2002
filing date -
Mar 13, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A closing member 3 is equipped with a dispensing valve 8 and a filter 7. The valve 8 is deformed resiliently to shift its valve head 82 downstream with its orifice 82a remaining closed if pressure less than a first predetermined pressure and more than a second predetermined pressure is acted on the inner surface of the valve head 82. The valve 8 returns to its original shape to shift the valve head 82 upstream with its orifice 82a remaining closed if the pressure is removed, thereby sucking fluid remaining within the passage 10 back to the upstream side of the filter 7. The closing member 3 has a supporter 31d that prevents the orifice 82a of the valve head 82 from opening when a negative pressure is generated in the bottle.
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Cited Art Landscape
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