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