Container closure provided with automatic opening-closing mechanism
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United States of America Patent
Stats
-
Nov 22, 1988
Grant Date -
N/A
app pub date -
Feb 23, 1988
filing date -
Mar 2, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A closure for containers comprises an automatic opening-closing mechanism and an outside closure member having a pour opening. The automatic opening-closing mechanism includes a plug member having a centrally formed air introduction hole and a plurality of liquid discharge ports formed around the air introduction hole, a first valve member for opening and closing the liquid discharge ports and a second valve member for opening and closing the air introduction hole.
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