Patents for G05D 21 - Control of chemical or physico-chemical variables, e.g. ph-value (1,435) |
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08/18/2009 | US7575732 removing hydrogen sulfide from a hydrocarbon gas, with a scrub solution of ammonium bisulfite and ammonium sulfite to produce an effluent liquid ammonium thiosulfate and an overhead gas carbon dioxide; control the pH, desulfurization; cost efficiency; air pollution control |
08/13/2009 | WO2009098146A1 Mixer, and device and method for monitoring or controlling said mixer |
07/30/2009 | WO2009033575A3 Method and device for continuously processing contaminated fluids |
07/29/2009 | CN101493705A Acid-alkali neutralizing controller |
07/22/2009 | CN100517152C Wiper unit controller and method for controlling wiper unit |
07/16/2009 | WO2009087247A1 Device and method for measuring the oxygen uptake rate of activated sludge for a determined concentration of a biodegradable organic substrate |
06/11/2009 | CA2706000A1 Method for operating a water softening system having two calibration characteristics and associated water softening system |
05/27/2009 | CN101440415A Control appliance of blast furnace gas all dry dedusting system |
05/20/2009 | EP1943573B1 Method for making a food or biotechnological product using redox potential regulation |
05/20/2009 | CN100489719C Apparatus and method for online monitoring pH value in MES production |
04/30/2009 | US20090107921 Chemical treatment system and method |
04/28/2009 | US7524473 dissolved in aqueous alkaline slurry and removed from the flue gas; control the process by measuring and adjusting a redox potential of the aqueous alkaline slurry; also remove sulfur oxides present in flue gas; air pollution controlling the combustion of a fuel, coal; environmentally friendly |
04/22/2009 | CN100480939C Adjusting device for heat value/caloric index and pressure of liquefied petroleum gas |
04/21/2009 | US7521031 Method and apparatus for treating exhaust gas |
04/07/2009 | US7515994 Accurate blending module and method |
04/02/2009 | DE10122230B4 Verfahren und Vorrichtung zur Regelung des Flüssigkeitshaushalts einer Verdunstungsanlage Method and apparatus for controlling the fluid balance an evaporation plant |
03/19/2009 | WO2009036054A1 Method and device for cleanup and deposit removal from internal hot water system surfaces |
03/19/2009 | WO2009036032A1 Method and device for preventing corrosion in hot water systems undergoing intermittent operations |
03/19/2009 | WO2009033575A2 Method and device for continuously processing contaminated fluids |
03/19/2009 | WO2009033496A1 Device for the location-dependent detection of a physical or chemical variable of a medium, measuring transducer and conveyor device for such a device |
03/19/2009 | WO2009033495A1 Device for the location-dependent detection of a physical or chemical variable of a medium, measuring transducer and drive device for such a device |
03/12/2009 | US20090065440 Method and device for cleanup and deposit removal from internal hot water system surfaces |
03/11/2009 | EP2032236A2 Process for treating a gas stream |
02/26/2009 | WO2008057546A3 Advanced control of severe fluid catalytic cracking process for maximizing propylene production from petroleum feedstock |
02/17/2009 | CA2403837C Use of control matrix for boiler control |
02/12/2009 | DE10350884B4 Verfahren und Vorrichtung zur Steuerung einer Wasseraufbereitungsanlage Method and apparatus for controlling a water treatment plant |
02/12/2009 | CA2694961A1 Control system for industrial water system and method for its use |
02/04/2009 | EP2019977A1 A method and apparatus for fuzzy logic control enhancing advanced process control performance |
02/04/2009 | EP2019728A1 Lithium ion-selective membrane |
01/29/2009 | WO2009015269A1 Method and device for preventing corrosion in hot water systems |
01/29/2009 | CA2695087A1 Method and device for preventing corrosion in hot water systems |
01/14/2009 | CN100451902C Automatic regulation control system for PH value of solution and its automatic control method |
01/08/2009 | WO2009004324A1 Improvements relating to the metered dispensation of fluid |
12/31/2008 | CN201174056Y Double-loop intelligent pH value measuring and controlling device having CAN bus |
12/31/2008 | CN201173135Y Control device for adding adjuvant and water to filled tailing |
12/24/2008 | WO2008155510A1 Process control software for the control of hydraulic retention time in a biological reactor |
12/18/2008 | WO2008074958A3 Method and device for changing the ph of a solution |
12/10/2008 | CN201162542Y Control equipment used for controlling accessories added to milltailings |
12/10/2008 | CN201162541Y Control equipment used for controlling water supply to milltailings |
11/26/2008 | EP1685275A4 Method of inhibiting corrosion in hot water systems |
11/18/2008 | CA2302245C Performance-based control system |
11/18/2008 | CA2220316C Method for controlling chemical synthesis processes |
11/13/2008 | WO2008017899A3 Process for ph-control and stoichiometric ph-stat mean |
11/13/2008 | CA2633613A1 Control system |
11/12/2008 | CN101301538A Fuzzy intelligent control system for casting water processing medicament |
10/29/2008 | CN100429598C Method for inspecting and controlling dyeing liquid component of dyeing machine on-line |
10/29/2008 | CN100429597C System for inspecting and controlling dyeing liquid component of dyeing machine on-line |
10/22/2008 | CN201137471Y Automatic slurry-mixing device |
10/22/2008 | CN100427572C Median automatic selection control method of powdered coal pressuring gasified oxygen stream |
10/15/2008 | EP1980535A2 Performance-based Control System |
10/14/2008 | US7434741 Automatic damper control for air conditioning system humidifier |
10/01/2008 | CN101276225A PH value automatic balance liquid feeding method and apparatus |
10/01/2008 | CN101274197A Fluid infusion for controlling pH of leaching tower, automatic draining device, and working method thereof |
09/24/2008 | CN101273317A Point-of-use process control blender systems and corresponding methods |
09/24/2008 | CN101271337A PH value monitoring device and method based on CAN bus network gate |
09/18/2008 | WO2008112945A1 Fluid sampling system with an in-line probe |
09/18/2008 | DE102007012443A1 Einrichtung zum Regeln der Dichte eines Flüssigkeitsgemisches und Verwendung der Einrichtung Means for controlling the density of a liquid mixture, and use of the device |
09/18/2008 | CA2679704A1 Fluid sampling system with an in-line probe |
09/17/2008 | CN101265714A Power generating plant recirculated water and urban tap water combined water supply system |
09/03/2008 | CN201110974Y PH automatic control system |
08/27/2008 | EP1962165A1 Ozonated water flow and concentration control apparatus and method |
07/29/2008 | CA2293686C Control and monitoring system for chemical treatment of an oilfield well |
07/23/2008 | CN101228492A Method for controlling foaming in a process |
07/17/2008 | DE202008006028U1 Anordnung zur automatischen Erkennung von Schwimmschlamm Arrangement for automatic detection of floating sludge |
07/16/2008 | EP1943573A1 Method for making a food or biotechnological product using redox potential regulation |
07/16/2008 | CN101220450A Method for suitable for batch quantity hot dipping zinc of rolled steel |
07/09/2008 | CN101215845A Divided water supply device |
07/09/2008 | CN101214479A Colorful steel plate inert gas circulating heating curing method and equipment thereby |
07/08/2008 | US7396514 Electronic controls for pollutant removal |
07/02/2008 | EP1782136B1 Cascaded control of an average value of a process parameter to a desired value |
07/02/2008 | EP1194822B8 Annular fluid manipulation in lined tubular systems to enhance component mechanical properties and flow integrity |
07/01/2008 | US7393380 Method of guaranteeing at least one characteristic of a fluid used for producing food products |
06/25/2008 | EP1934663A1 Point-of-use process control blender systems and corresponding methods |
06/24/2008 | US7390470 Process for treating a gas stream |
06/18/2008 | EP1931601A2 Denitrification process and system |
05/28/2008 | CN101187299A Automatic slurry-mixing device |
05/21/2008 | EP1499934B1 Ozonated water flow and concentration control apparatus and method |
05/21/2008 | EP1194822B1 Annular fluid manipulation in lined tubular systems to enhance component mechanical properties and flow integrity |
05/15/2008 | CA2668541A1 Advanced control of severe fluid catalytic cracking process for maximizing propylene production from petroleum feedstock |
05/13/2008 | CA2609705A1 Density measurement with gamma backscattering |
04/16/2008 | CN101163165A Wireless data card and method of generating negative ion |
04/15/2008 | US7357901 Exhaust gas purification device for an internal combustion engine and exhaust gas purification method for an internal combustion engine |
03/25/2008 | CA2305490C Method for evaluating and controlling the biomass contained in waste water treatment biological tanks |
03/12/2008 | CN201035420Y electrochemical reaction control type pH adjusting apparatus |
03/12/2008 | CN101139659A Method for reclaiming nickel from acidic nickel plating waste water |
03/12/2008 | CN101139658A Equipment for reclaiming nickel from acidic nickel plating waste water |
03/11/2008 | US7340907 Anti-condensation control system |
02/27/2008 | EP1859330A4 Apparatuses and methods for manipulating droplets on a printed circuit board |
02/06/2008 | CN201018359Y Hydrogen gas controller |
01/17/2008 | WO2007137143A3 Process for treating a gas stream |
01/16/2008 | CN100361909C Adjusting method for A/O biological denitrification reactor and nitrification process, its on-line fuzzy controller and control thereof |
01/15/2008 | CA2438797C Method of controlling solution concentration in strip cleaning line |
01/09/2008 | EP1875321A1 Flow control |
01/08/2008 | CA2356153C Performance-based control system |
01/03/2008 | US20080002518 Ozonated Water Flow and Concentration Control Apparatus and Method |
12/26/2007 | EP1451413A4 Real-time component monitoring and replenishment system for multicomponent fluids |
12/12/2007 | CN200990024Y Hydrogen generator controller |
11/28/2007 | EP1859330A2 Apparatuses and methods for manipulating droplets on a printed circuit board |
11/21/2007 | EP1025053B1 Performance-based control system |
11/21/2007 | CN101076723A Remote monitoring system for water |