Data processing: generic control systems or specific application – Specific application – apparatus or process – Chemical process control or monitoring system
Reexamination Certificate
2002-03-13
2008-03-25
Sines, Brian (Department: 1797)
Data processing: generic control systems or specific application
Specific application, apparatus or process
Chemical process control or monitoring system
C422S050000, C422S068100, C422S075000, C436S050000, C436S051000, C436S043000, C073S001010, C073S001020, C073S001360, C073S001410, C073S001570, C073S001710, C073S001720, C356S024000, C356S025000, C356S029000, C700S001000, C700S028000, C700S266000, C702S001000, C702S022000, C702S023000
Reexamination Certificate
active
07349760
ABSTRACT:
A system for measuring and controlling the concentration of a chemical agent in a solution has a reaction cell for receiving a sample, a titrant dropper for releasing one or more drops of titrant into the sample, a first photosensor for sensing disruptions of light for every drop of titrant released, and a controller that communicates with the photosensor and computes the concentration of the chemical agent based on the number of disruptions of light at the photosensor. The present invention also includes a method for sensing and controlling the concentration of a chemical agent in a solution. The method includes having a sample containing the chemical agent, triggering the release of a number of drops of titrant into the sample, detecting the number of drops released into the sample, and computing the concentration of the chemical agent in the sample based on the number of drops of titrant released into the sample.
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Batcher Tom
Gutzmann Tim
Schacht Paul
Wei Guang-jong Jason
Ecolab Inc.
Shumaker & Sieffert P.A.
Sines Brian
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