Chemistry: electrical and wave energy – Apparatus – Electrophoretic or electro-osmotic apparatus
Reexamination Certificate
2011-04-19
2011-04-19
Phasge, Arun S (Department: 1724)
Chemistry: electrical and wave energy
Apparatus
Electrophoretic or electro-osmotic apparatus
C422S105000, C422S110000
Reexamination Certificate
active
07927477
ABSTRACT:
A precision flow controller is capable of providing a flow rate less than 100 microliters/minute and varying the flow rate in a prescribed manner that is both predictable and reproducible where the accuracy and precision of the flowrate is less than 5% of the flow rate. A plurality of variable pressure fluid supplies pump fluid through a single outlet. Flowmeters measure the flow rates and a controller compares the flow rates to desired flowrates and, if necessary, adjusts the plurality of variable pressure fluid supplies so that the variable pressure fluid supplies pump fluid at the desired flow rate. The variable pressure fluid supplies can be pneumatically driven.
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Arnold Don W.
Paul Phillip H.
Rehm Jason E.
AB Sciex LLC
Lloyd Laura M.
Phasge Arun S
Sheldon Jeffrey G.
Sheldon Mak & Anderson
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