| Patents for G01F 1 - Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through the meter in a continuous flow (42,661) |
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| 04/05/1994 | US5299447 Air flow manifold system for providing two different mass air flow rates to a mass air flow sensor production calibration station |
| 04/05/1994 | CA2017523C Method and means for determining air mass in a crankcase scavenged two-stroke engine |
| 04/05/1994 | CA1328313C Method and apparatus for use with flow vortex meters |
| 03/31/1994 | WO1994006271A1 Apparatus for measuring agricultural yield |
| 03/31/1994 | DE4301966C1 Rotation detector, esp. for vol. measurement device - contains rotor with constant electromagnetic damping and variable damping region, associated sensors |
| 03/31/1994 | DE4232526A1 Measuring small liquid flows e.g. droplet using ultrasound phase shift comparator - uses transducers having width less than that of plane-parallel inner surfaces of tube, with additional transducer which receives sound reflected several times off tube wall |
| 03/31/1994 | CA2144325A1 Apparatus for measuring agricultural yield |
| 03/30/1994 | EP0589211A2 Control and evaluation circuit for an air massflowmeter |
| 03/30/1994 | EP0588910A1 Method and apparatus for determining the total flow rate in a ventilation installation. |
| 03/30/1994 | EP0588901A1 Method and apparatus for measurement of total flow rate in ventilation installations |
| 03/30/1994 | EP0588882A1 Flowmeters |
| 03/29/1994 | US5299141 Automatic fluid monitoring and sampling apparatus and method |
| 03/29/1994 | US5298886 Fluidic flowmeter equipped with a micro flow sensor |
| 03/29/1994 | US5297945 Pump for viscous fluids |
| 03/29/1994 | US5297442 Method to determine liquid flow rate for manifold feed nozzles |
| 03/29/1994 | US5297427 Wide-range laminar flowmeter |
| 03/29/1994 | US5297426 Hydrodynamic fluid divider for fluid measuring devices |
| 03/29/1994 | US5297425 Electromagnetic borehole flowmeter system |
| 03/24/1994 | DE4331722A1 Air flow meter for vehicle engine control - contains heat generating resistance temp. sensor with controlled current source |
| 03/23/1994 | EP0588626A2 Air flow rate measuring device |
| 03/23/1994 | EP0588599A2 Method and apparatus for ultrasonic measurements of a medium having non-axial flow |
| 03/23/1994 | EP0511983B1 Ventilatory instrument for measuring peak expiratory flow |
| 03/23/1994 | EP0436588B1 Low stress polysilicon microstructures |
| 03/23/1994 | CN2159552Y Electromechanic unified oil-gas-water metering separator |
| 03/22/1994 | US5296145 Apparatus and method for supercritical fluid extraction |
| 03/22/1994 | US5295398 For determining mass flow rate of media moving through a conduit |
| 03/22/1994 | US5295397 Slotted orifice flowmeter |
| 03/22/1994 | US5295396 Positive displacement piston flow meter for air flow measurement |
| 03/22/1994 | US5295394 Bypass unit for a flowmeter sensor |
| 03/22/1994 | CA1327901C Method of magnetic-inductive flow measurement and a magnetic-inductive flow meter |
| 03/21/1994 | EP0579825A4 Gas turbine meter. |
| 03/18/1994 | CA2106145A1 Method and apparatus for ultrasonic measurements of a medium having non-axial flow |
| 03/17/1994 | WO1994006068A1 Air sampling pump system |
| 03/17/1994 | WO1994005977A1 Wide-range laminar flowmeter |
| 03/17/1994 | DE4230626A1 Ultrasonic measurement of vol. flow of bulk material on conveyor belt - checking correct running and plausibility of measured values in computation of instantaneous rate and aggregate quantity. |
| 03/16/1994 | EP0586661A1 Method and device for optically measuring the size or speed of an object moving through a fluid |
| 03/15/1994 | US5295084 Vibrating tube densimeter |
| 03/15/1994 | US5295083 Device for dynamically measuring bubble content of flowing liquid |
| 03/15/1994 | US5294023 System for delivering liquid at a controlled flow rate |
| 03/15/1994 | US5293866 Oxygen flow meter indicator |
| 03/15/1994 | CA1327713C Analog flow meter instrument |
| 03/10/1994 | DE4330475A1 Impact bumper for self-propelled electric vacuum cleaner - has projecting contact element depressed inwards to lift suction head from cleaned surface |
| 03/10/1994 | DE4230087A1 Integrated optical micro-mechanical sensor for measuring physical or chemical parameters - has strip waveguide applied to etched membrane acting as integrated measuring path |
| 03/10/1994 | DE4228484A1 Temperature sensor for measuring air stream temp. - has frame of monocrystalline silicon@ for supporting diaphragm of silicon oxide, silicon nitride or silicon oxynitride |
| 03/10/1994 | DE4215342A1 Flow-rate sensor for fluids passing through pipe - has system carriers for supporting heaters and temp sensor, parallel to and to opposite sides of tangent to pipe surface, with thermally-conductive material between carrier and pipe |
| 03/09/1994 | EP0585920A2 Flow meter for the determination of flowing media |
| 03/09/1994 | EP0585386A1 Flow calibrator |
| 03/09/1994 | CN2158531Y Magnetic rotor flowrator |
| 03/09/1994 | CN2158530Y Gauge for measuring hot water or cold water |
| 03/09/1994 | CN1023952C Method for measuring flow and aridity of double-phase fluid containing steam (gas) and liquid |
| 03/08/1994 | US5293553 Software air-flow meter for an internal combustion engine |
| 03/08/1994 | US5291792 Mass flow meter |
| 03/08/1994 | US5291781 For detecting a fluid flow |
| 03/08/1994 | US5291780 Flow meters |
| 03/03/1994 | WO1994004890A1 Flow meter |
| 03/03/1994 | WO1994004286A2 Improvements in or relating to the dispensing of fluids |
| 03/03/1994 | WO1994004073A1 Blood flow monitoring system |
| 03/03/1994 | WO1994004019A1 Mass flow rate measurement device |
| 03/03/1994 | DE4228977A1 Throughflow measurement in mains pipe - using acoustic properties of pipes such as Doppler effect and sound wave expansion to obtain data concerning throughflow |
| 03/03/1994 | CA2142290A1 Improvements in or relating to the dispensing of fluids |
| 03/02/1994 | EP0584890A2 A milking plant |
| 03/02/1994 | EP0584329A1 Apparatus and method for measuring two- or three phase fluid flow utilizing one or more momentum flow meters and a volumetric flow meter |
| 03/02/1994 | EP0584242A1 Method and apparatus for translating a mass flow meter signal. |
| 03/02/1994 | EP0584120A1 Floater flowmeter. |
| 03/02/1994 | EP0541650B1 Mass flow meter |
| 03/02/1994 | CN1083208A Optical fiber flowmeter |
| 03/01/1994 | US5289726 Ring type vortex flowmeter and method for measuring flow speed and flow rate using said ring type vortex flowmeter |
| 03/01/1994 | US5289725 Monolithic flow tube with improved dielectric properties for use with a magnetic flowmeter |
| 02/24/1994 | DE4227922A1 Capacitive mass flow measurement system esp. for harvester - forms measurement capacitor by electrodes located on conveyor chute walls downstream of corn-elevator, with protection electrode adjacent one electrode |
| 02/23/1994 | CN2157495Y Float steam flowmeter |
| 02/23/1994 | CN1082708A Momentum complex differencial pressure type mass flowmetre |
| 02/22/1994 | US5287851 Endotracheal tube connector with integral pneumotach transducer |
| 02/22/1994 | US5287754 Mass flow meter |
| 02/22/1994 | US5287752 Measurment of gas and liquid flowrates and watercut of multiphase mixtures of oil, water and gas |
| 02/17/1994 | WO1994003816A1 Fluid indicator assemblies for sight flow apparatus |
| 02/17/1994 | DE4226391A1 Detecting zero-point drift for correcting vibration phase shift in Coriolis mass flow meter - measuring additional vibration characteristic parameters e.g. amplitude or DC components using light source-photosensor light valve and correcting using e.g. difference |
| 02/16/1994 | EP0391954B1 Fluidic flowmeter |
| 02/16/1994 | CN2156481Y Pipe line flow quantity meter |
| 02/16/1994 | CN1082190A 蒸汽流量表 Steam flow meter |
| 02/15/1994 | US5287061 On line triboelectric probe contamination detector |
| 02/15/1994 | US5285962 Method and apparatus for automatically transferring and measuring wet steam between multiple constant demand users |
| 02/15/1994 | US5285673 Method for in-line calibration verification of mass flow meters |
| 02/09/1994 | EP0581896A1 Thermal mass flow sensor |
| 02/09/1994 | CN1081763A Mass flowmeter |
| 02/09/1994 | CN1081762A Differential type precision regulator for flow meter |
| 02/08/1994 | US5284053 Controlled flow volumetric flowmeter |
| 02/03/1994 | WO1994002730A1 Method of adapting internal-combustion engine air values from a substitute characteristic diagram used to control, on the occurrence of pulsing in the air-aspiration line, the formation of the mixture to suit the currently prevailing outside-air conditions |
| 02/02/1994 | EP0581163A1 Vortex flow meter |
| 02/02/1994 | EP0581017A1 Flow meter for fluids |
| 02/02/1994 | EP0580608A1 Device for measuring a gas flow, and method for using the device. |
| 02/02/1994 | EP0439590B1 Paint conductivity measurement system |
| 02/02/1994 | CN2155008Y Hall turbine flow transducer |
| 02/02/1994 | CN1023658C Rocking beam vortex sensor |
| 02/01/1994 | US5282389 Apparatus for measuring agricultural yield |
| 02/01/1994 | US5282385 Hot-wire type flowmeter |
| 02/01/1994 | CA2012431C Method and means for determining air mass in a crankcase scavenged two-stroke engine |
| 01/27/1994 | DE4324040A1 Mass flow meter, e.g. for air flow - has sensor element carrying heater and thermal sensors, and heater temp. controller. |
| 01/27/1994 | DE4224518A1 Flow sensor for gas or liquid - has temp. sensitive resistances on mutually opposed sensor regions on ends of silicon body |
| 01/26/1994 | EP0580475A1 Device for measuring the flow rate of a liquid |
| 01/26/1994 | EP0580298A2 Flow detecting systems |