Ink refill unit having a linearly actuated plunger assembly
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United States of America Patent
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Jul 15, 2008
Grant Date -
Jul 21, 2005
app pub date -
Dec 20, 2004
filing date -
Jan 21, 2004
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A dispensing assembly for a printing fluid refill cartridge, that has a body for storing printing fluid having an outlet through which the printing fluid is dispensed, and a plunger arranged to selectively change the storage capacity of the body and expel the printing fluid through the outlet by selective engagement of a movable retaining member with a series of grooves arranged along a surface of the plunger, thereby dispensing a selected amount of printing fluid from the outlet.
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