Patents for G05D 21 - Control of chemical or physico-chemical variables, e.g. ph-value (1,435) |
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04/25/2006 | CA2524198A1 Metering pump control system |
04/19/2006 | CN1760780A Regutate and control device for gas phase concentration of material in high melting point |
04/18/2006 | US7028913 Process for humidifying the useful space in an incubator and in a controlled atmosphere incubator |
04/13/2006 | US20060078465 Measuring transmissivity or absorbance of at least two different wavelengths as measured values of said electroless composite plating solution disposed in an absorbance cell; nickel plating; trapping fine bubbles; washing with pure water; vertically elongated plating solution |
03/22/2006 | CN1751155A Paper machine control method, control device, program and storage medium |
03/22/2006 | CN1749900A Method for controlling two way fluid flow fixed ratio and flow sum |
03/21/2006 | US7014777 For controlling a wastewater treatment of using a microorganism that can degrade a specific compound |
03/15/2006 | CN1746805A Method for inspecting and controlling dyeing liquid component of dyeing machine on-line |
03/15/2006 | CN1746804A System for inspecting and controlling dyeing liquid component of dyeing machine on-line |
03/09/2006 | WO2006026479A2 Method and system for sncr optimization |
03/09/2006 | US20060052902 Method and system for SNCR optimization |
03/01/2006 | CN1244036C Glass bulb slurry level-concentration control system |
02/28/2006 | US7005073 Residual wastewater chlorine concentration control using a dynamic weir |
02/16/2006 | DE4305704B4 Verfahren und Vorrichtung zur Untersuchung von in einem Gas befindlichen Partikeln Method and apparatus for investigating particles present in a gas |
02/14/2006 | US6996999 Method and apparatus for controlling humidity with an air conditioner |
02/09/2006 | US20060026977 Device for creating a reference humidity |
01/18/2006 | CN1722036A Control system and monitoring apparatus for reaction plant |
01/05/2006 | WO2006000675A1 Method for controlling a microbiological process on the basis of successive temporal derivatives of state variables |
01/04/2006 | CN1715201A Method and system for controlling coagulant filling rate by on-line measuring flocculate sedimentation speed |
12/29/2005 | US20050288409 for manufacturing glass fibers |
12/14/2005 | CN2746431Y System for on-line detecting and controlling dye liquid component of dyeing machine |
12/13/2005 | US6974565 System and process for removal of pollutants from a gas stream |
12/08/2005 | US20050273203 Accurate blending module and method |
11/30/2005 | CN1229520C Device and method for reproducing etching solution containing metal compounds |
11/24/2005 | DE102004020770A1 Method for controlling the nitration number of a nitration or nitrocarburizing atmosphere avoiding the use of a split ammonia oven and decreasing the ammonia consumption |
11/16/2005 | EP1059978B1 Filter bed differential pressure monitoring system |
11/02/2005 | EP0969342B1 Fluid supply apparatus |
10/27/2005 | US20050238549 For removal of pollutants, such as oxides of sulfur, oxides of nitrogen, fly ash, mercury compounds, and elemental mercury from gases generated from the burning of fossil fuels |
10/19/2005 | EP1586373A1 Reactor control system |
10/18/2005 | US6957130 Navigational instrument, method and computer program product for displaying ground traffic information |
10/06/2005 | DE19730573B4 Verfahren zur vollautomatischen Regelung der Karbonisierung von Kalilauge zu Pottaschelauge Method for fully automatic control of the carbonization of caustic potash potash lye to |
09/27/2005 | US6948504 Ozonated water flow and concentration control method |
09/15/2005 | US20050202313 half-cell for use with a potentiometric measuring cell for determining ionic activities in a solution being measured; bridge electrolyte is a cationic gel of crosslinked copolymers of diallyldimethylammonium chloride with diallylamine; long shelf life |
09/07/2005 | CN2724068Y Vehicle carried air quality sensing control system |
09/06/2005 | CA2377165C Annular fluid manipulation in lined tubular systems to enhance component mechanical properties and flow integrity |
08/31/2005 | EP1412086A4 Self-regulating microfluidic device and method of using the same |
08/31/2005 | CN1216649C Smell spreading device and method |
08/25/2005 | WO2005022145A3 Remote contamination monitoring system for water supply network |
08/18/2005 | CA2549848A1 Interchangeable tip-open cell fluorometer |
08/16/2005 | CA2222046C Method to monitor and control chemical treatment of petroleum, petrochemical and processes with on-line quartz crystal microbalance sensors |
08/11/2005 | WO2005073822A1 Controlling biocide addition to process liquids |
08/11/2005 | DE102004005303A1 Current supply in electrolytic water disinfection online monitoring with a two- electrode sensor has zero current flow at pole reversal |
08/10/2005 | CN1653400A Ozonated water flow and concentration control apparatus and method |
06/28/2005 | US6911190 Process and apparatus for treating contaminated gas |
06/16/2005 | DE10350884A1 Determining depletion of filtration capacity in ion exchanger of continuously-operating water softening plant, measures raw water hardness repeatedly to calculate depletion |
06/15/2005 | CN1627215A Online optimized method for blending oil products, and system of implementing the method |
06/01/2005 | EP1373600B1 Method of controlling solution concentration in strip cleaning line |
05/26/2005 | US20050109792 Method and device for detecting and checking the quality or properties of a mixture of fluids, in particular a food or domestic mixture |
05/25/2005 | CN1203213C Method and apparatus for measuring and automatic controlling acid concentration |
05/19/2005 | US20050106062 Transportating, dispensing fluid; measurement, calibration transition point; storage value; food processing |
05/12/2005 | US20050102067 Diluting system and method |
03/23/2005 | EP1516238A2 Method and device for detecting and checking the quality or properties of a mixture of fluids, in particular a food or domestic mixture |
03/23/2005 | CN1598729A Automatic regulation control system for PH value of solution and its automatic control method |
03/10/2005 | WO2005022145A2 Remote contamination monitoring system for water supply network |
03/09/2005 | EP1194382B1 Method, device and use of said method for biological elimination of metal elements present in an ionized state in water |
02/22/2005 | US6858198 Estimating concentration of bound water and free water in the acid feed stream by providing a probe in at least a portion of feed stream; adjusting the concentration of free water in acid feed stream based on estimation |
02/15/2005 | US6856916 Locating system of oxidation/reduction potential of electrolysis water and the constant output method of calibration and compensation thereof |
02/10/2005 | US20050029202 Ozonated water flow and concentration control apparatus and method |
02/02/2005 | EP1503264A1 Performance-based control system |
02/01/2005 | CA2166562C Automated method for controlling the rate of chlorine dioxide generation |
01/26/2005 | EP1499934A1 Ozonated water flow and concentration control apparatus and method |
01/26/2005 | CN1570802A Adjusting device for heat value/caloric index and pressure of liquefied petroleum gas |
01/26/2005 | CN1186638C Method of on line detecting acid bath components and its detecting apparatus |
01/19/2005 | CN1567111A Dish-washing machine and its control method |
01/18/2005 | US6845298 Diluting system and method |
01/13/2005 | US20050009192 Water quality detection system for monitoring concentration of contaminants in drinking water; pollution control |
12/30/2004 | US20040262233 Method and apparatus for controlling concentration of water treatment chemicals |
12/29/2004 | EP1025053A4 Performance-based control system |
12/22/2004 | CN1556447A Flow path automatic feed back dilution and control device |
12/16/2004 | US20040254744 Locating system of oxidation/reduction potential of electrolysis water and the constant output method of calibration and compensation thereof |
12/08/2004 | EP1483572A2 Device for measuring and regulating the ph-value of a medium |
11/17/2004 | EP1194822A4 Annular fluid manipulation in lined tubular systems to enhance component mechanical properties and flow integrity |
11/04/2004 | US20040217067 Residual wastewater chlorine concentration control using a dynamic weir |
10/19/2004 | US6805791 Ozonated water flow and concentration control apparatus |
10/13/2004 | CN2648478Y Interface circuit of constant current high voltage DC source and collecting-distributing controlling system |
09/22/2004 | EP1459139A2 Method for guaranteeing at least one characteristic of a fluid used for producing food products |
09/21/2004 | CA2376699C Biosensors for monitoring air conditioning and refrigeration processes |
09/01/2004 | EP1451413A2 Real-time component monitoring and replenishment system for multicomponent fluids |
08/26/2004 | WO2004072367A1 Paper machine control method, control device, program and storage medium |
08/19/2004 | DE19844179B4 Verfahren zum Einstellen der Zugabe von Desinfektionsmittel zu Wasser A method of adjusting the addition of disinfectant to water |
08/18/2004 | EP1284935A4 Use of control matrix for cooling water systems control |
08/12/2004 | US20040158433 Process analysis systems with automatic liquid sample preparation and connection to process control systems |
08/12/2004 | US20040156767 Gas containing volatile organic compounds and high humidity is continuously introduced into reactor to contact metal oxide catalyst and oxidant; efficiency |
08/04/2004 | CN1517711A Process analysing system with automatic liquid sample preparing and its connection with process control system |
08/03/2004 | CA2308777C Method and apparatus for measurement and automatic control of acid concentration |
07/29/2004 | US20040144699 Buoyant water chlorinator with range indicators for temperature , pH measurement and chlorine concentration |
07/29/2004 | DE10301421A1 Prozessanalysensysteme mit automatischer Flüssigprobenvorbereitung und Anbindung zu Prozessleitsystemen Process analysis systems with automatic liquid sample preparation and connection to process control systems |
07/21/2004 | EP1439472A1 Process analysis system with automatic liquid sample preparation and connection to process control system |
07/21/2004 | CN2627553Y Automatic controller for coal mine emulsion pump station |
07/07/2004 | CN2624256Y Light hydrocarbon gas concentration on-line monitoring device |
06/30/2004 | CN1155626C Method for controlling chemical synthesis processes |
06/23/2004 | CN1154615C Automatic controller for sewage treatment process |
05/13/2004 | WO2004040389A1 Monitoring system |
05/13/2004 | WO2003107109A3 Method and device for detecting and checking the quality or properties of a mixture of fluids, in particular a food or domestic mixture |
05/12/2004 | CN1149359C Biosensors for minitoring air conditioning and refrigeration preocess |
05/06/2004 | EP1259554B1 Process for the controlled production of polyethylene and its copolymers |
04/28/2004 | EP1412286A2 Method for regulating water concentration in a process stream |
04/28/2004 | EP1412086A2 Self-regulating microfluidic device and method of using the same |
04/28/2004 | EP1297343A4 Use of control matrix for boiler control |
04/20/2004 | US6723805 Process for the controlled production of polyethylene and its copolymers |