| Patents for G05D 7 - Control of flow (11,410) |
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| 06/12/1991 | EP0430971A1 Apparatus for metering fluid flow |
| 06/11/1991 | US5022438 Fluids rate of flow saving or limiting device |
| 06/11/1991 | US5022432 Bubbler valve |
| 06/05/1991 | CN1012718B Wet sand-aerating machine |
| 06/04/1991 | US5020772 Proportional electromagnetic flow valve |
| 05/30/1991 | WO1991007712A1 Simple surge control for compressors with improved response |
| 05/30/1991 | WO1991007711A1 Fluid flow control valve |
| 05/28/1991 | CA2023745A1 Control of polymerization reaction |
| 05/16/1991 | WO1991006835A1 Weighing metering device for free-flowing substances |
| 05/16/1991 | DE3937931A1 Liq. flow rate regulator - comprises chamber whose inlet valve is controlled by a float regulates the flow of liq. into sewage works, ponds etc. |
| 05/14/1991 | US5015393 Water treatment for accumulation and removal of floating sludge |
| 05/14/1991 | CA1284080C Pressure reducer-regulator for the distribution of a gaseous, liquid, viscous, powdery or pasty product |
| 05/09/1991 | WO1991007334A1 Control valve |
| 05/09/1991 | CA2044620A1 Automatic lift valve |
| 05/08/1991 | EP0425735A1 Metering by weight device for flowable substance |
| 05/08/1991 | CN1051231A Pumping plant |
| 05/02/1991 | WO1991005986A1 Volume and flow measuring apparatus |
| 04/30/1991 | US5010740 Refrigeration system with mass flow limiting device |
| 04/21/1991 | WO1991006062A1 Computer controlled metering pump |
| 04/17/1991 | EP0422025A1 Method and device for regulating the spraying of coating materials. |
| 04/10/1991 | EP0421063A2 Process for amelioration of the adaptive stochastic precision of dosing of a controlled balance for differential dosing |
| 04/10/1991 | CN1050624A Fluid pressure and flow controlling valve implemented by pressure sensor and flow correction calculator |
| 04/09/1991 | US5006227 Volumetric flow controller for aerosol classifier |
| 04/09/1991 | US5005636 Variable air volume ventilating system and method of operating same |
| 04/09/1991 | US5005600 Servovalve apparatus for use in fluid systems |
| 04/03/1991 | EP0420599A2 Flow control system |
| 04/02/1991 | US5004008 Variable area refrigerant expansion device |
| 04/02/1991 | US5004006 Two-way flow valve |
| 04/02/1991 | US5003948 Stepper motor throttle controller |
| 03/31/1991 | WO1991005194A1 Constant flow rate valve |
| 03/21/1991 | WO1991003781A1 Flow control system |
| 03/19/1991 | US5000221 Flow control system |
| 03/19/1991 | US5000220 Metering valve with follow-up servo |
| 03/19/1991 | US5000219 Fluid flow control regulator |
| 03/19/1991 | US5000052 Controlled sampler |
| 03/12/1991 | US4998556 An adjustable-rate, flow regulated constant-output |
| 03/12/1991 | CA1281261C Method of and apparatus for controlling material flow |
| 03/06/1991 | EP0415618A1 Apparatus for conducting and controlling chemical reactions |
| 03/06/1991 | CN2072697U Tube type flow adjuster |
| 03/05/1991 | US4997159 Logic valve |
| 02/28/1991 | DE4025578A1 Flow or pressure regulating valve - has inbuilt by=pass port providing fail=safe function |
| 02/26/1991 | US4995422 Pressure compensated |
| 02/19/1991 | WO1991002598A1 Paint conductivity measurement system |
| 02/19/1991 | US4993365 Flow rate meter and automatic animal feeder installation employing such flow meter |
| 02/19/1991 | CA2038955A1 Paint conductivity measurement system |
| 02/19/1991 | CA1280335C Two-way flow-control valve |
| 02/13/1991 | EP0412929A2 Fuel control utilizing a multifunction valve |
| 02/12/1991 | US4992952 Paint discharge rate control system |
| 02/06/1991 | EP0411808A1 Logic valve |
| 02/06/1991 | CN2070922U Glue flow testing and controlling device |
| 01/31/1991 | DE4016140A1 Controlled gas flow regulator and controller |
| 01/31/1991 | DE3925016A1 Liq. glaze application control - e.g. during glazing of ceramic tiles |
| 01/29/1991 | US4988015 Method for dispensing fluid materials |
| 01/24/1991 | WO1991000997A1 System and method for monitoring substances and reactions |
| 01/24/1991 | CA2350892A1 System and method for monitoring substances and reactions |
| 01/23/1991 | EP0409779A2 Device for controlled ventilation of rooms |
| 01/23/1991 | EP0409511A1 Adjustable flow regulator for use in an implantable drug infusion system |
| 01/23/1991 | EP0409157A2 Air filtering control system |
| 01/23/1991 | CN1011330B Valve for addition of water to electrochemical accumulator batteries |
| 01/22/1991 | US4986470 Flow controller |
| 01/16/1991 | EP0408256A1 Low-output flow regulator |
| 01/16/1991 | EP0408051A1 Method and device for the transport of fluid or pasty materials |
| 01/16/1991 | EP0370070A4 Synthetisized flow-control servovalve |
| 01/15/1991 | US4984603 Flow control valve assembly |
| 01/15/1991 | US4984601 Unit apt to act upon the flow |
| 01/15/1991 | CA1279121C Method for controlling the flow rate of a gas in a valve, and flow generatingdevice for use in said method |
| 01/15/1991 | CA1279042C Gas pressurised dispensing containers |
| 01/08/1991 | US4982803 Modulator and power-assisted steering circuit comprising such a modulator |
| 01/02/1991 | EP0404914A1 Procedure for controlling and maintaining air currents or equivalent in an air-conditioning installation, and an air-conditioning system according to said procedure. |
| 01/02/1991 | CN1048256A Electro-magnetic valve for controlling flow of fluid in pipe |
| 01/02/1991 | CA1278491C Paint discharge control device |
| 12/31/1990 | WO1991000459A1 Flight craft with fluid systems which incorporate butterfly valves, and butterfly valve methods and apparatus |
| 12/31/1990 | CA2060311A1 Flight craft with fluid systems which incorporate butterfly valves, and butterfly valve methods and apparatus |
| 12/27/1990 | EP0404618A1 Electromagnetic valve for the flow control of a fluid in a pipe |
| 12/27/1990 | EP0404257A1 Ventilation grill |
| 12/27/1990 | EP0403546A1 A device for controlling fluid flow. |
| 12/25/1990 | US4979644 Rate-controlled gravity drip delivery apparatus |
| 12/20/1990 | DE3919859A1 Measuring liq. flow rate - by counting drops and processing data from counting sensor |
| 12/19/1990 | EP0403280A2 Apparatus for controlling material flow in a fluid dispensing process |
| 12/18/1990 | US4978896 Method and apparatus for controlling a blower motor in an air handling system |
| 12/18/1990 | US4977916 Mass flow controller |
| 12/13/1990 | WO1990015320A1 Controlled sampler |
| 12/11/1990 | US4977526 Method and system for controlling a differential dosing scale |
| 12/11/1990 | US4976283 Fluid flow regulator |
| 12/05/1990 | EP0401061A1 Modulator and servo steering circuit with such a modulator |
| 12/04/1990 | US4974963 Portable and autonomous instrument for analyzing a gaseous composition by means of flame spectrophotometry |
| 12/04/1990 | US4974622 Valve control assembly |
| 12/04/1990 | CA1277148C Multi-function fuel metering valve |
| 11/27/1990 | CA1276919C Thrust regulator comprising a mounting enclosure |
| 11/20/1990 | US4971005 Fuel control utilizing a multifunction valve |
| 11/20/1990 | CA1276521C Fluid flow control valve |
| 11/15/1990 | DE3915242A1 Electromagnetically operated valve for IC engine - has return spring with two rates operating against flow control poppet |
| 11/13/1990 | CA1276093C Pneumatic differential pressure controller |
| 11/08/1990 | DE3914702A1 Outflow quantity regulator, esp. for rain retention chamber - contains control chamber with float, independently operated choke apertures in compact construction |
| 11/07/1990 | EP0258393A4 Adhesive dispensing pump control system and pump |
| 11/06/1990 | US4967783 Recirculation valve with pilot valve |
| 11/06/1990 | US4967591 Apparatus, application and method of making a gas flow regulator operating at a very low flow rate and at sonic velocity for measuring gaseous adsorbtion and desorbtion |
| 10/30/1990 | CA1275717C Gas flow controller |
| 10/30/1990 | CA1275715C Proportional valve control apparatus for fluid systems |
| 10/24/1990 | CN1046399A Numerically controlled high-flow regulating valve |