Patents for G05D 11 - Ratio control (5,344)
03/2000
03/08/2000EP0983133A1 Gravimetric blender with operatively coupled bar code reader
03/08/2000CN2368061Y Bucket-balancing proportion measuring controller for grog
03/07/2000US6033546 Apparatus and method for performing microfluidic manipulations for chemical analysis and synthesis
02/2000
02/29/2000US6029688 Water wheel for pumping chemical treatment into water stream
02/23/2000CN1245570A On-line control of chemical process plant
02/22/2000US6026793 Control system for plants
02/17/2000WO2000008341A1 Flow dividing valve
02/17/2000WO2000007705A1 Mixing apparatus
02/16/2000CN2364490Y Gas proportioning mixer
02/15/2000US6024875 Method for controlling the oxygen content of the water at the outlet of a unit for dissolving oxygen in water, and unit for implementing the method
02/09/2000CN1049200C Method for controlling the raw ingredients of cement
01/2000
01/25/2000US6016840 Liquid/gas vacuum ejector device
01/25/2000US6016825 Metering device
01/19/2000EP0973081A1 Metering device
01/12/2000EP0970744A2 Chemical generator with controlled mixing and concentration feedback and adjustment
01/11/2000CA2204354C In-line venturi
01/05/2000EP0969342A1 Fluid supply apparatus
01/05/2000EP0950215A4 Flow-responsive diverting valve
01/04/2000US6010608 Separating components of sample
01/04/2000US6010607 Apparatus and method for performing microfluidic manipulations for chemical analysis and synthesis
12/1999
12/29/1999WO1999067140A1 Dosing device, method and system for dosing small doses
12/28/1999US6007236 Weigh scale blender and method
12/28/1999US6006775 Fuel dispensing system using a common meter and octane sensing
12/22/1999CN1047536C System and method for producing and maintaining predetermined proportionate mixtures of fluids
12/15/1999EP0884966B1 System for making a floor cleaning liquid available in a convenient manner
12/14/1999US6001229 Miniature instrumentation for electrically controlled manipulation of fluid for capillary electrophoresis, liquid chromatography, and flow injection analysis
12/08/1999CN1237476A Mechanical proportioner
12/07/1999US5996650 Net mass liquid filler
12/07/1999US5996394 Gas meter calibration device for hydrogen-oxygen mixtures
12/01/1999EP0961190A1 Fuel blending apparatus using octane levels
11/1999
11/30/1999US5993054 System and method for continuously and simultaneously injecting two or more additives into a main stream of oleaginous liquid
11/30/1999US5992437 Method for diluting acid or alkaline stock solution and apparatus therefor
11/24/1999EP0958118A1 Gravimetric blender
11/24/1999CN2350794Y 气体密度控制器 Gas density controller
11/23/1999US5990486 Apparatus and method for measuring components of a solute stream
11/18/1999WO1999058950A1 Analyzer for continuously measuring h2s contained in a gas and device including same for regulating the air flow rate injected into an h2s sulphur oxidation reactor
11/17/1999CN1046428C 化学反应器进料控制 Chemical reactor feed control
11/16/1999US5983875 Control system for plants
11/16/1999CA2027384C Method and apparatus for controlling the gas content of foam materials
11/16/1999CA2025450C Variable blending dispenser
11/11/1999DE19818771A1 Process to analyze, regulate and control a technical process
11/09/1999US5981289 Hydrogen sulfide analyzer
11/09/1999US5980835 A chamber for mixing air with a toxic gas, comprising a detector for detecting differential air pressures, generating a signal through a transmitter and signal converter serving a logic controller
11/09/1999US5979705 Fuel blending using blend component octane levels
11/09/1999US5979478 Apparatus and method for treating water in a water supply system
11/04/1999WO1999056189A1 Conductivity feedback control system for slurry blending
11/04/1999DE19817768A1 Process to determine the pH and rH values of a homogenous substance consisting of two or more food ingredients
11/03/1999CN1233749A Method of metering liquid additive into liquid silicon-containing material
11/02/1999US5975353 Fluid system and method utilizing a master and blend ratio meter
10/1999
10/28/1999WO1999054796A1 Automatic foam solution regulation for compressed-air-foam-systems
10/26/1999US5971912 Fluid flow controlling device and an incubator incorporating the same therein
10/21/1999WO1999053121A1 Automated chemical process control system
10/20/1999EP0950215A1 Flow-responsive diverting valve
10/20/1999EP0824682A4 Viscosity maintenance
10/19/1999US5968268 Coating apparatus and coating method
10/13/1999EP0948761A1 On-line control of a chemical process plant
09/1999
09/30/1999WO1999048602A1 Apparatus and process for the continuous preparation of a fluid with automatic adjustment of the properties thereof
09/30/1999DE19905543A1 Regelungssystem für einen Mehrschichtstoffauflauf Control system for a multi-layer headbox
09/30/1999DE19812128A1 Flow control device for working medium such as oil and carrier medium in cooling lubrication apparatus
09/29/1999EP0945171A2 Method of metering a liquid additive into a liquid silicon-containing material
09/28/1999US5957137 Controlled dilution controlled concentration cardioplegia solution administration
09/27/1999CA2266937A1 Method of metering a liquid additive into a liquid silicon-containing material
09/21/1999US5956254 Octane sensitive dispenser blending system
09/14/1999US5950675 Backflow prevention apparatus for feeding a mixture of gases
09/07/1999US5946905 Optimization control for gas engines with a three-way catalyst
08/1999
08/31/1999US5944074 Method and apparatus for injecting additives
08/26/1999DE19906824A1 Mixing dispenser for multiple viscous and solidifying liquids, such as catalyzed resin systems
08/25/1999EP0424503B1 Multiphase process mixing and measuring system
08/18/1999EP0836719A4 System and method for on-site mixing of ultra-high-purity chemicals for semiconductor processing
08/11/1999EP0934799A2 Apparatus for determining the content of substances of fluxes in automatic soldering machines
08/11/1999EP0934558A1 Metering device with adjustable proportions and liquid dispensing positively controlled by slide valves
08/10/1999US5934328 In-line venturi
08/04/1999EP0932502A1 Process and plant for preparing printing paste or the like, in particular for printing textile or carpet webs
08/03/1999CA2002225C Gas-aided dispensing of liquid materials
07/1999
07/29/1999WO1999038057A1 Fluid supply apparatus
07/29/1999DE19902686A1 Fuel dispensing system
07/28/1999EP0930996A1 Octane sensitive dispenser blending system
07/27/1999US5927349 Compounding assembly for nutritional fluids
07/20/1999US5924794 Chemical blending system with titrator control
07/20/1999US5924453 Piston and cylinder actuated polymer mixing valve
07/13/1999US5921263 Fuel dispensing system using a common meter and octane sensing
07/06/1999CA2161918C Chemical reactor feed control
07/01/1999WO1999032172A1 Controlled concentration cardioplegia solution administration
06/1999
06/30/1999EP0926580A1 Method and device for producing continuous and accurate flows of mixed gas
06/29/1999CA2044161C Process for improved sulfure production from sulfure production unit using acid gas containing hydrogen sulfide
06/16/1999EP0922204A1 A dosage device
06/09/1999EP0920362A1 Method for supplying gas to a chamber and method for regulating the content of a given element in the atmosphere of such a chamber
06/03/1999WO1999026876A1 Fluid system and method utilizing a master meter and blend ratio meter
05/1999
05/27/1999DE19750138A1 Einrichtung zum Einbringen eines flüssigen Reduktionsmittels in eine Abgas-Reinigungsanlage Means for introducing a liquid reducing agent into an exhaust gas cleaning system
05/26/1999EP0917676A2 Apparatus and method for controlling output of an oxygen concentrator
05/20/1999WO1999024643A1 Method of measuring acid concentration, and automatic control method and apparatus
05/20/1999WO1999024150A1 Device for supplying a reduction agent into an exhaust-gas purification system
05/20/1999DE19804445C1 Apparatus for determining flux ingredients in automatic soldering machines
05/19/1999CN1043444C Method for regulating level of mixture of flowable material in container having outlet
05/18/1999US5904170 Pressure flow and concentration control of oxygen/ozone gas mixtures
05/11/1999US5901897 Gas flow rate control device and brazing device with flow rate of frist gas and flow rate of second gas controlled on the basis of set ratio
05/05/1999CN2317496Y Manifold preflowing device for controlling parallel tube set flow-rate to distribute according to need
05/04/1999US5899219 Method for moving a spool valve
04/1999
04/27/1999US5896874 Apparatus for controlling resist stripping solution
04/22/1999WO1999019726A1 Hydrogen sulfide analyzer
1 ... 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 ... 54