Closure having thermally responsive water washing slots
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United States of America Patent
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-
Apr 23, 1991
Issued Date -
N/A
app pub date -
Jun 8, 1990
filing date -
Sep 1, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A closure is provided with slots through which wash water can flow to wash food particles from the interthread space between the closure and a container, after the closure has been secured onto the container. At room temperature the washing slots are essentially closed to the ingress of dirt particles, but they open when the closure is heated so that water can flow through them and into the interthread space.
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Family
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