Patents for G05D 7 - Control of flow (11,410)
01/2001
01/10/2001EP1067322A2 Flow regulator valve
01/09/2001US6170512 Flow control device
01/09/2001US6170508 Fluid flow regulating valve and method
01/04/2001WO2001001215A1 Regulator flow measurement apparatus
01/04/2001WO2001001214A1 Regulator diagnostics system and method
01/04/2001WO2001001045A1 Method of adjusting mass flow in liquid circuit transferring energy
12/2000
12/28/2000WO2000079357A1 A constant gas flow regulating device
12/27/2000EP1063483A2 Supercooling degree-controlled expansion valve
12/26/2000US6167107 Air pump for particle sensing using regenerative fan, and associated methods
12/26/2000US6164321 Liquid flow regulator for use in infusion sets
12/26/2000CA2237837C Variable flow orifice valve assembly
12/21/2000DE19927392A1 Valve for use in hydraulic lifting devices has valve body which slides between inlet and outlet against effect of spring and has bore which cooperates with control diaphragm with through bore into which conical projection on valve body fits
12/12/2000US6158966 Volumetric control of the flow of a filtering pump
12/12/2000US6158679 Orifice for pressure type flow rate control unit and process for manufacturing orifice
12/07/2000WO2000073868A1 Wide range gas flow system with real time flow measurement and correction
12/07/2000WO2000073716A1 Electronic variable orifice tube and system for use therewith
12/07/2000WO2000072932A2 Water softener valve
12/07/2000CA2366580A1 Wide range gas flow system with real time flow measurement and correction
12/05/2000US6155790 Method and equipment for controlling a pipe network
12/05/2000CA2043682C Integrated process control valve
11/2000
11/30/2000DE19924691A1 Hydraulic flow control valve has a metering valve stage that responds to the flow condition
11/29/2000EP0890146A4 Vacuum actuated sheath valve
11/29/2000CN2408490Y High precision mass flow control equipment for clearing relative air path flow surge
11/29/2000CN1275218A Method for detecting plugging of pressure flow-rate controller and sensor used therefor
11/29/2000CN1275217A Versatile flow rate controller
11/29/2000CN1274823A Gas-conveying quantitative distributing pipe
11/28/2000US6154686 Distributed architecture
11/28/2000US6152168 Pressure-type flow rate control apparatus
11/28/2000US6152162 Fluid flow controlling
11/22/2000EP1054311A1 Gas delivery metering tube
11/22/2000EP1053035A1 Implantable drug infusion device having a flow regulator
11/22/2000EP0847307A4 Independent flow rate and droplet size control system and method for sprayer
11/22/2000CN2407381Y Gas valve of water heater
11/21/2000US6149071 Flow control system for spray applications
11/21/2000CA2308758A1 Gas delivery metering tube
11/16/2000DE19947900A1 Valve assembly, especially for hydraulic braking system with wheel slip regulation, has flow cross-section between valve pin piston that is closed by electrical actuation of valve pin
11/16/2000CA2514099A1 Gas flow control in gas-assisted esu
11/09/2000WO2000066843A1 Regulating device for continuous or sequential distribution of single liquids or mixtures
11/09/2000DE19920058A1 Device especially for drawing out dust-laden crude gas has auxiliary gas inlet connected to main pipe and with opening cross section variable depending upon throughflow of main pipe
11/08/2000EP1049965A1 Hvac fan-powered terminal unit having preset fan cfm
11/02/2000WO2000065316A1 Viscous material dispensing system and method with feedback control
11/02/2000EP0910766A4 Improved pressure-based mass flow controller
11/01/2000CN1272186A Gas supply equipment with pressure type flow rate control device
10/2000
10/31/2000US6139903 Process control
10/31/2000US6138708 Mass flow controller having automatic pressure compensator
10/26/2000WO2000063757A1 Modular surface mount mass flow and pressure controller
10/26/2000WO2000063756A1 Parallel bypass type fluid feeding device, and method and device for controlling fluid variable type pressure system flow rate used for the device
10/25/2000CN2403002Y Magnetic suspension attraction gas flow regulating valve port device
10/24/2000US6135719 Method and apparatus for metering injection pump flow
10/24/2000US6135155 Fluid control device
10/19/2000WO2000061215A1 Monolithic high performance miniature flow control unit
10/17/2000US6131307 Method and device for controlling pressure and flow rate
10/12/2000WO2000033896A3 Flow regulator
10/10/2000US6129702 Medicament dosing system
10/10/2000US6129112 Flow regulator
10/10/2000CA2066581C Computer controlled metering pump
10/05/2000WO2000058802A1 Fluid flow control method and apparatus for filtration system
10/04/2000EP0610226B1 Compressed air control system
10/03/2000US6125869 Self-diagnosis method for mass flow controller
09/2000
09/28/2000WO2000057175A1 Methods for optimal usage and improved valuation of corrosive petroleum feedstocks and fractions
09/28/2000WO2000057091A1 Fluid pressure reduction device
09/28/2000DE10012100A1 Sealing ring with integral flow rate controller comprises sealing ring and connecting sleeve which is fixed in the ring by compressing it to oval shape
09/28/2000DE10010602A1 Pressure or flow rate control valve has secondary pressure balanced by biasing force of spring so that valve assumes closed state, and plug rests on seat part
09/28/2000CA2366375A1 Fluid pressure reduction device
09/20/2000EP0824727A4 Automatic variable-demand flow regulator
09/20/2000CN1266952A Pressure/flow controlling valve
09/20/2000CN1266951A Pressure/flow ontrolling valve
09/19/2000US6120001 Apparatus for regulating fluid flow through a flexible conduit
09/19/2000US6119723 Apparatus for varying the flow area of a conduit
09/19/2000US6119721 Electropneumatic regulator system
09/19/2000US6119717 Fluid flow control apparatus
09/19/2000US6119710 Method for wide range gas flow system with real time flow measurement and correction
09/14/2000WO2000053534A1 Mixing, aeration or oxygenating method and apparatus
09/14/2000DE19910750A1 Verfahren zur Einstellung eines Ventils A method for adjusting a valve
09/13/2000EP1035457A1 Method for detecting plugging of pressure flow-rate controller and sensor used therefor
09/13/2000EP1035456A1 Method for adjusting a valve
09/13/2000EP0918578A4 System and method for controlling airflow in a laboratory or fume hood
09/13/2000CN1266179A Method and equipment for measuring and adjusting the speed of liquid flowing in and out sealed container
09/12/2000US6116283 Fluid control device
09/06/2000EP0981709A4 Magnetic flow controller
09/06/2000EP0839276B1 Flow control valve
08/2000
08/30/2000EP1031899A2 Fluid flow valve with variable flow rate
08/29/2000US6110431 Ozone dispensing system
08/29/2000US6110427 Flow controllers, housings, pistons with cavities
08/29/2000US6109261 Powder inhaler with breath flow regulation valve
08/23/2000EP0708665B1 Liquid material dispenser
08/16/2000CN2392199Y Intelligent instrument for controlling flow-rate of liquid
08/16/2000CN1262907A Control method of flavour addition in material and its application
08/15/2000US6102364 Control accuracy of a pulse-operated electromechanical device
08/15/2000CA2126496C Hybrid valving system for varying fluid flow rate
08/09/2000EP1026566A1 Versatile flow rate controller
08/03/2000WO2000010065A9 Flow regulator to maintain controllable volumetric flow rate
08/01/2000US6095175 Clad piezoelectric valve actuator and application of same in controlling highly reactive and corrosive gases
07/2000
07/25/2000US6092782 Opening and closing valve
07/19/2000EP0817989B1 Method and apparatus for supplying liquid cryogen
07/13/2000DE19900573A1 Hydraulic flow regulating valve with pressure maintaining valve in series with throttle
07/12/2000EP1017628A2 Water treatment system having dosing control
07/12/2000EP1017266A1 System for delivering a substantially constant vapor flow to a chemical process reactor
07/12/2000CN1259656A Measuring method of air and powdered coal flow and concn. and its controlling system
07/11/2000US6085957 Volumetric feed control for flexible filament
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