Dispensing valve with venting
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United States of America Patent
Stats
-
Dec 5, 1995
Grant Date -
N/A
app pub date -
Oct 11, 1994
filing date -
Oct 11, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dispensing valve for a resiliently deformable container includes a flange diaphragm having a sealing surface abutting a seating surface surrounding a dispensing opening in the cap. The flange diaphragm is retained against the seating surface at specific points, leaving portions of the flange diaphragm free to deform away from the seating surface. Thus, after the dispensing operation as the walls of the container try to return to their rest position, air can ingress into the container through the dispensing opening by forcing portions of the flange diaphragm away from the seating surface, to allow for quick and efficient venting of the container.
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