Push up dispenser with capsule valve
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United States of America Patent
Stats
-
Oct 23, 1990
Grant Date -
N/A
app pub date -
Aug 16, 1988
filing date -
Aug 16, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A push up fluid dispenser having a fluid storage container and a vertically oriented plunger carried in the container, with the plunger being manually pushable upward for dispensing fluid from the container. The container includes a valve cylinder mounted in the container and having an upper opening and an interior passage for slidingly receiving the plunger, and the plunger having a fluid flow passage therein providing a flow path from the cylinder interior to the exterior of the dispenser. A first one-way valve is disposed for control of fluid flow into the cylinder interior through an upper opening and a second one-way valve is disposed for control of fluid flow from the cylinder interior into the plunger passage, with a spring between the cylinder and plunger urging the plunger downward.
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