Pump tube and pouch
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United States of America Patent
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-
Oct 18, 1994
Grant Date -
N/A
app pub date -
Dec 15, 1992
filing date -
Dec 15, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A pouch for storing and dispensing liquid product in incremental amounts having a body portion and a pump tube portion, wherein the pouch can be held within a dispensing apparatus for squeezing the pump tube portion to release the incremental amounts. The improved pouch provides a pump tube portion made of thermoplastic polypropylene and butyl terpolymer rubber which can be readily sealed to the body without fitments or couplers. The improved pouch provides a built-in 'duck bill' check valve assembly or alternatively an O-ring check valve assembly, which further reduces the number of parts required as compared to the prior art. The check valve assembly provides a socket connector for mounting a separate nozzle assembly to the check valve assembly. A break-off tab for initially opening the nozzle assembly for dispensing is provided.
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