Membrane piercing closure and spout assembly
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United States of America Patent
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-
Jan 9, 1996
Grant Date -
N/A
app pub date -
Mar 16, 1994
filing date -
Mar 16, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A closure assembly for piercing a diaphragm over a discharge opening in a container comprising a cap of cup-like form having internal thread means and a generally tubular spout member mounted on the container surrounding the diaphragm and a piercing fitment disposed interiorly of the spout member having a series of depending teeth arranged in a circular array and cooperating interengaging means between the spout member and piercing fitment and cap whereby rotational movement of the cap in one direction effects downward displacement of the piercing fitment to pierce the diaphragm.
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