Dual chambered fluid displacement apparatus
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United States of America Patent
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Apr 26, 2005
Grant Date -
N/A
app pub date -
Oct 17, 2002
filing date -
Oct 17, 2002
priority date (Note) -
Expired
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Abstract
A dual-chambered dispensing device having a single piston. The device is driven by an electric precision motor. Each chamber is capable of aspiration and dispensation. When one chamber is aspirating, the other is dispensing.
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