Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition
Reexamination Certificate
2005-06-07
2005-06-07
Warden, Jill (Department: 1743)
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
C422S050000, C422S051000, C422S063000, C422S068100, C422S081000, C422S105000, C422S105000, C422S105000, C422S129000, C422S130000, C436S043000, C436S052000, C436S053000, C436S054000, C436S174000, C436S180000, C073S001010, C073S001020, C073S864000, C073S864010, C073S864110, C073S864130, C073S864230, C251S129010, C251S213000, C251S281000, C251S284000, C251S286000, C251S289000, C251S290000, C251S291000, C251S292000, C251S298000, C251S304000, C251S318000, C251S336000, C251S339000, C137S001000, C137S015170, C137S
Reexamination Certificate
active
06902704
ABSTRACT:
An injection pump assembly10in a chemical delivery system for simultaneously delivering reagents into a combinatorial reactor system having multiple injectors. The assembly10has a plurality of injectors12, each injector12being in fluid communication with one of the multiple reactors. Each injector12has (1) a pump14in which a plunger18sealingly moves to ingest, store and discharge a flushing solvent20; (2) a pipette assembly22for loading, storing, and discharging one or more reagents into one of the reactors in the combinatorial reactor system, first and second reservoirs for retaining some of the reagents; (3) one or more hollow needles32, each for selectively delivering a reagent24to the first28or the second24reservoir; (4) a first valve34positioned downstream of the first28reservoir; and (5) a second valve36positioned downstream of the second30reservoir. When each valve34, 36is in a closed position, the reagents24, 48can be stored in isolation from each other. When each valve34, 36is in an open position, the reagents24, 48may flow through the pipette assembly22. A 3-way valve38is positioned between the pump14and the pipette assembly22. An actuator assembly46is in operable communication with each of the plurality of injectors so that the 3-way valves38of each injector may be repositioned in unison, thereby delivering precise amounts of the flushing solvent20and the reagents24, 48in varied or consistent amounts to each reactor in the combinatorial reactor system. The inventive method involves operation of the disclosed injection pump assembly.
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Yun, Y.K. and Labadie, J., Parallel Synthesis on Endeavor Hydrogenation of 3-alkylidenylindolin-2-ones, Publication Note, APN #030, Argonaut Technologies, San Carlos, CA.
Endeavor™ Run more reactions in less time, www.argotech.com/endeavor/files/morerxns.htm.
Brooks & Kushman P.C.
Equistar Chemicals, L.P
Sines Brian
Warden Jill
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