Fluid handling – Self-proportioning or correlating systems – Mixture condition maintaining or sensing
Reexamination Certificate
2011-03-15
2011-03-15
Fox, John (Department: 3753)
Fluid handling
Self-proportioning or correlating systems
Mixture condition maintaining or sensing
C137S093000
Reexamination Certificate
active
07905245
ABSTRACT:
A method and system of controlling addition of a treating agent based on a control function comprising a plurality of demand values is disclosed. Process parameters of a fluid to be treated are measured and one or more control signals are generated based on the measured process values and the control function. The control signals are used to actuate a treating agent dosing system and also used to monitor and compare the levels, status or condition of the treating agent. Additional features of the invention compensate for rain events.
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McQuade Brett T.
Morano David L.
Fox John
Siemens Water Technologies Corp.
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