Dispenser comprising actuating piston and outlet check valve
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United States of America Patent
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Dec 5, 2017
Issued Date -
N/A
app pub date -
Feb 22, 2013
filing date -
Feb 22, 2012
priority date (Note) -
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Abstract
A valved container assembly which has a container for containing a fluid, the container extending in an axial direction and having an open front end and a valve disposed in the container. The valved container assembly is configured so that forward axial movement of the valve relative to the container is inhibited. A plunger element is disposed axially rearward of the valve and is axially moveable in the container. The plunger element is configured to increase the pressure of a fluid in a first volume of the container upon forward axial movement relative to the valve. The valve includes a channel bypassing the permanent seal, the channel having a first opening in fluid communication with the atmosphere outside of the valved container assembly and a second opening selectively sealed from the first volume by a resilient seal.
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