Means and method of measuring and dispensing
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United States of America Patent
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-
Feb 2, 1993
Grant Date -
N/A
app pub date -
Oct 11, 1990
filing date -
Oct 11, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method of metering and dispensing a first liquid, using a probe having an aspiration tip defining a tip chamber. The aspiration tip chamber is sized so as to be capable of holding and metering at least two largely different volumes of a first liquid. In the method a filler liquid is introduced into a portion of the chamber and a first liquid is aspirated in a predetermined amount into the chamber, so that a predetermined amount of the first liquid can be metered and dispensed with high accuracy and precision. The chamber is capable of being used for two largely different doses of the first liquid. Additional liquids can be aspirated along with the filler liquid. The filler using can be a reactant, a cleaner or the like.
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Cited Art Landscape
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