| Patents for G05D 11 - Ratio control (5,344) |
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| 01/31/2001 | EP0705457B1 Chemical injection system |
| 01/30/2001 | US6178995 Fluid supply apparatus |
| 01/17/2001 | EP1068373A1 Automated chemical process control system |
| 01/17/2001 | CN1280633A Method of measuring acid concentration, and automatic control method and apparatus |
| 01/11/2001 | WO2001001764A1 Method for automatically calibrating a device for supplying domestic animals with a feed |
| 01/11/2001 | DE19938637A1 Verfahren zum automatischen Kalibrieren einer Vorrichtung zum Versorgen von Haustieren A method for automatically calibrating a device for feeding pets |
| 01/10/2001 | CN2414394Y Flow controllable valve |
| 01/03/2001 | EP1064084A1 Apparatus and process for the continuous preparation of a fluid with automatic adjustment of the properties thereof |
| 01/03/2001 | EP0850438A4 Proportioning valve and control means therefor |
| 01/02/2001 | US6168308 Mechanical proportioner |
| 12/21/2000 | WO2000077588A1 A method and a system for controlling a heating plant |
| 12/21/2000 | WO2000077587A1 Annular fluid manipulation in lined tubular systems to enhance component mechanical properties and flow integrity |
| 12/21/2000 | CA2376653A1 A method and a system for controlling a heating plant |
| 12/20/2000 | EP1061426A2 Pumping system for the injection of measured qualities of fluid into a fluid stream |
| 12/14/2000 | WO2000075066A1 Fluid mixing apparatus |
| 12/13/2000 | EP0852661B1 Process and device for metering the introduction of a reducing agent into the waste gas or air stream of a combustion unit |
| 12/12/2000 | US6161060 Octane sensitive dispenser blending system |
| 12/07/2000 | WO2000073869A1 Method for controlling the optimal dosing quantity of additives to continuously flowing fluids |
| 12/06/2000 | EP0809823B1 Chemical blending system with titrator control |
| 11/30/2000 | DE19923980A1 Verfahren und Vorrichtung zum Überwachen und Regeln einer Gaszusammensetzung Method and apparatus for monitoring and controlling a gas composition |
| 11/30/2000 | DE19910212A1 Mixer assembly for bulk solids made up of two components is unaffected be feed pulsation and stoppages |
| 11/29/2000 | EP1055985A2 Method and device for monitoring and controlling the composition of a gas |
| 11/29/2000 | EP1054834A1 Fluid system and method utilizing a master meter and blend ratio meter |
| 11/29/2000 | EP0890146A4 Vacuum actuated sheath valve |
| 11/29/2000 | CN2408491Y Flow definite proportion controller |
| 11/28/2000 | US6152192 Controller for system for filling gas cylinders with single gas or gas mixture |
| 11/23/2000 | WO2000069491A1 Method for passing a mixture of liquid through human and/or animal organs or extremities |
| 11/23/2000 | WO2000037367A9 Method for automatic dose control of liquid treatment chemicals |
| 11/21/2000 | US6148839 Apparatus and method for injecting liquid additives into agricultural and industrial water supplies |
| 11/16/2000 | WO2000068136A1 Dosing valve with flow rate sensor for a beverage dispenser |
| 11/16/2000 | DE19922548A1 Process for regulating the mixing ratio of components during the manufacture of cement comprises balancing the mixing process by a mathematical process model to act as the evaluation of the structural information |
| 11/15/2000 | EP1051904A2 Process for metering continuously carbon dioxyde in biologically utilized media, a set and a retofit set to perform this process |
| 11/14/2000 | US6146008 System for diluting ultrapure chemicals which is intended for the microelectronics industry |
| 11/07/2000 | US6142162 System and method for odorizing natural gas |
| 11/02/2000 | EP1047488A1 Device for supplying a reduction agent into an exhaust-gas purification system |
| 11/02/2000 | DE19919798A1 Verfahren zur kontinuierlichen Langzeitdosierung von Kohlendioxid in biologisch genutzten Medien, und ein Set sowie ein Nachrüstset zur Durchführung dieses Verfahrens A method for long-term continuous dosing of carbon dioxide into biologically utilized media, and a set as well as a retrofit kit for performing this method |
| 11/02/2000 | DE19918899A1 Continual process to regulate and control the composition mixture of processed food and drink by determining the sum or individual concentration levels |
| 10/26/2000 | WO2000063758A1 Control system and method for ratio control |
| 10/24/2000 | US6135319 Brix determining apparatus |
| 10/24/2000 | CA2032129C Blender system for fuel dispenser |
| 10/19/2000 | WO2000038497A3 Volumetric gas mixing device |
| 10/19/2000 | DE19915779A1 Abfüllstand zur Herstellung von Präzisionsgasgemischen Filling stand for manufacturing precision gas mixtures |
| 10/17/2000 | US6131601 Fluid mixing apparatus |
| 10/11/2000 | EP1043540A2 Filling device for making precision gas mixtures |
| 10/10/2000 | US6129106 Proportioning valve and control means therefor |
| 10/10/2000 | US6129104 Method for automotive dose control of liquid treatment chemicals |
| 10/03/2000 | US6126039 Method and apparatus for accurately dispensing liquids and solids |
| 10/03/2000 | US6125831 Control system for plants |
| 09/21/2000 | WO2000055702A1 Liquid injection apparatus and method for horticultural watering systems |
| 09/19/2000 | US6119281 Devices for metering fluids in response to level changes |
| 09/13/2000 | EP1035332A1 Flow dividing valve |
| 09/12/2000 | US6116259 Method and apparatus for measuring and adjustably controlling vapor-liquid mixing ratio at pipe junctions |
| 09/12/2000 | CA2168149C Tank truck fuel delivery system having a selective dye injection system |
| 09/07/2000 | DE19906482C1 Multi-purpose dosing pump for introduction of additives into gases or liquids, e.g. water, oil or petrol discharges at consistent but adjustable rate, |
| 09/06/2000 | CN1265337A Additives injection system and method |
| 08/30/2000 | EP0871976B1 Method for preparing blend products |
| 08/29/2000 | US6112134 Single meter octane blending apparatus |
| 08/29/2000 | US6110431 Ozone dispensing system |
| 08/23/2000 | EP0810901B1 Additive blending system and method |
| 08/16/2000 | CN1263291A Continuous quantitative feeding control method and its equipment |
| 08/15/2000 | US6104968 Programmable supervisory circuit and applications therefore |
| 08/09/2000 | EP1025795A1 Endoscope cleaning and disinfectant unit |
| 08/03/2000 | WO2000045233A1 Apparatus and method for controllably delivering fluid to a second fluid stream |
| 08/02/2000 | EP1023596A1 Hydrogen sulfide analyzer |
| 07/25/2000 | US6092430 Oxygen/carbon dioxide sensor and controller for a refrigerated controlled atmosphere shipping container |
| 07/25/2000 | US6092367 Method and apparatus for metering the introduction of a reducing agent into the exhaust-gas or exhaust-air stream of a combustion installation |
| 07/06/2000 | WO2000038497A2 Volumetric gas mixing device |
| 07/06/2000 | CA2353979A1 Volumetric gas mixing device |
| 06/29/2000 | WO2000037367A1 Method for automatic dose control of liquid treatment chemicals |
| 06/27/2000 | US6079462 Compounding assembly for nutritional fluids |
| 06/27/2000 | US6079459 Controller for tank-filling system |
| 06/15/2000 | WO2000038827A1 Method and apparatus for mixing high molecular weight materials with liquids |
| 06/13/2000 | US6074203 Method for supplying gas to a chamber and method for regulating the content of a given element in the atmosphere of such a chamber |
| 06/07/2000 | CN1255981A Fluid supply appts. |
| 06/07/2000 | CN1255402A Autocontrolled gas mixing pump |
| 06/06/2000 | US6072576 On-line control of a chemical process plant |
| 06/02/2000 | WO2000031602A1 Method and device for regulating individual sub-flows of a system for conveying fluid media |
| 06/02/2000 | CA2371275A1 Method and device for regulating individual sub-flows of a system for conveying fluid media |
| 05/31/2000 | EP1004350A2 Method and device for mixing liquids |
| 05/31/2000 | DE4032337C2 Gas mixt. prepn. appts. - with controllable passage across piston in thick-walled glass cylinder moved by stepper motor |
| 05/31/2000 | DE19957489A1 Regulation method for fluid medium feed system e.g. for foodstuffs or pharmaceutical industry oe medical apparatus, uses regulation of flow resistances for individual flow lines supplied from common feed unit |
| 05/24/2000 | EP1001842A1 Machine for filling the edge joints of insulating glass panes with a sealing compound consisting of two constituents |
| 05/23/2000 | US6065638 Real time blending apparatus and method |
| 05/23/2000 | US6065489 Ozone flow rate control device |
| 05/17/2000 | EP1000334A1 Analyzer for continuously measuring h 2?s contained in a gas and device including same for regulating the air flow rate injected into an h 2?s sulphur oxidation reactor |
| 05/10/2000 | CN1052312C Additive injection system |
| 05/10/2000 | CN1052301C Apparatus and mehtod for performing microfluidic manipulations for chemical analysis and synthesis |
| 05/02/2000 | US6055926 Liquid enzyme doser |
| 04/27/2000 | WO2000023350A1 Apparatus for controlled venting of a chamber |
| 04/20/2000 | WO2000021888A1 Method for determining the dosages of water treatment products |
| 04/20/2000 | DE19847275A1 Process to calculate the quantity of coolant additive to be added to a closed coolant system operates without the use of tracer substances |
| 04/18/2000 | US6050283 System and method for on-site mixing of ultra-high-purity chemicals for semiconductor processing |
| 04/18/2000 | CA2237139C Process and apparatus for backing-up or supplementing a gas supply |
| 04/11/2000 | US6048089 Mixing apparatus for maintaining a pressure differential over varying feed rates |
| 04/11/2000 | US6047719 Method and device for production of high-precision, continuous streams of mixed gas |
| 04/05/2000 | EP0990198A2 Method and apparatus for accurately dispensing liquids and solids |
| 03/29/2000 | EP0989476A2 Balance based mixing control device and control method |
| 03/22/2000 | EP0987614A1 Apparatus and method for controlling output of an oxygen concentrator |
| 03/16/2000 | WO2000013518A1 Method and apparatus for producing a dairy product |
| 03/14/2000 | CA2173600C Method and apparatus for proportioning and mixing non-compressible and compressible fluids |