| 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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| 04/10/1990 | US4914950 Ceramic conduit assembly with metal outer tube |
| 04/10/1990 | US4914947 Sampling probe flow sensor |
| 04/05/1990 | WO1990003660A1 Low stress polysilicon microstructures |
| 04/05/1990 | WO1990003650A1 Metallization systems for heater/sensor elements |
| 04/05/1990 | DE3928442A1 Bubble-proof liq. flowmeter independent of pipe orientation - enables gas bubbles to by=pass oscillation channel in which frequency is measured pref. by electronic sampling |
| 04/05/1990 | DE3833145A1 Floating-body flow meter with ultrasonic position measurement |
| 04/04/1990 | EP0361388A2 Coriolis mass flow meter adapted for low flow rates |
| 04/04/1990 | CN2055591U Improved rotarywing wet water meter |
| 04/04/1990 | CN1041036A Electromagnetic flowmeter |
| 04/03/1990 | US4914742 Thin film orthogonal microsensor for air flow and method |
| 04/03/1990 | US4913159 Method for determining blood flow through a narrowed orifice using color doppler echocardiography |
| 04/03/1990 | US4912982 Non-perturbing cavity method and apparatus for measuring certain parameters of fluid within a conduit |
| 04/03/1990 | US4912975 Direct-heated flow measuring apparatus having improved response characteristics |
| 04/03/1990 | US4912974 Thermal flow sensor |
| 04/03/1990 | US4912973 Multiple point velocity probe |
| 04/03/1990 | US4912838 Method of manufacturing electrode for electromagnetic flowmeter |
| 04/03/1990 | CA1267300A1 Family of aerodynamically compensated multiple static pressure tubes |
| 03/29/1990 | DE3832948A1 Ultrasonic measuring arrangement with ultrasonic transducers arranged in pairs |
| 03/29/1990 | DE3832947A1 Ultrasonic (ultrasound) transducer, in particular for airflow sensors (air volume meters) |
| 03/29/1990 | DE3832379A1 Flow sensor |
| 03/28/1990 | EP0360673A1 Process and device for indicating the rate of flow of a compressible fluid circulating through a pressure reducer, and vibration sensor for the same |
| 03/28/1990 | EP0360569A2 Flow control device |
| 03/28/1990 | CN2055248U Dismantlable helical blade type water meter |
| 03/27/1990 | US4911022 Flowmeter with a fluid dynamic target |
| 03/27/1990 | US4911021 Air sampling apparatus |
| 03/27/1990 | US4911020 Coriolis-type mass flowmeter circuitry |
| 03/27/1990 | US4911019 High sensitivity-high resonance frequency vortex shedding flowmeter |
| 03/27/1990 | US4911018 Flow meter bracket |
| 03/27/1990 | US4911009 Thermal air flow meter |
| 03/27/1990 | US4911008 Hot film anemometer |
| 03/27/1990 | US4911007 For measuring fluid flow through a pipeline |
| 03/27/1990 | US4911006 Custody transfer meter |
| 03/27/1990 | US4910994 Impulse sensor with calibration means |
| 03/22/1990 | WO1990002877A1 Flow meter for a positive displacement pump |
| 03/21/1990 | EP0359294A2 Coriolis mass flow rate meter and method for producing a mass flow rate signal with reduced harmonic content |
| 03/20/1990 | US4910519 Electronic volume correctors |
| 03/20/1990 | US4909476 Orifice assembly for gas metering device |
| 03/20/1990 | US4909079 Heat wire airflow meter |
| 03/20/1990 | US4909078 Fluid flow detector |
| 03/20/1990 | US4909067 Steam quality measurement using separating calorimeter |
| 03/14/1990 | EP0358249A2 Method and apparatus for fourier processing of pulsed doppler signals |
| 03/13/1990 | US4907888 Non destructive testing and other applications using retroreflective illumination |
| 03/13/1990 | US4907459 Vortex flow meter |
| 03/13/1990 | US4907446 Flow sensor incorporating a thermoresistor |
| 03/08/1990 | WO1990002317A1 Device for measuring a flowing air volume |
| 03/08/1990 | DE3829062A1 Nach dem coriolis-prinzip arbeitendes stroemungsmessgeraet (iv) After the coriolis flow meter working-principle (iv) |
| 03/08/1990 | DE3829058A1 Flow meter (I) working according to the coriolis principle |
| 03/07/1990 | EP0357098A2 Coriolis mass flow meter having absolute frequency output and method for providing a frequency output signal |
| 03/07/1990 | EP0356702A2 Arrangement for monitoring the output flow of a dosing pump |
| 03/07/1990 | EP0356482A1 A sensor and transducer apparatus. |
| 03/06/1990 | US4906807 Apparatus for monitoring the flow of fluid media in a pipeline |
| 03/06/1990 | US4906165 Flow meter for a positive displacement pump |
| 03/06/1990 | US4905844 Method for monitoring ranges of volumetric fluid flow |
| 03/06/1990 | US4905522 Extreme temperature flow meter |
| 03/06/1990 | US4905514 Method and apparatus for measuring fluid flow |
| 03/06/1990 | US4905509 Hot wire air flow meter arrangement for monitoring intake air flow rate in internal combustion engine |
| 02/28/1990 | EP0356170A2 Flowmeters |
| 02/28/1990 | EP0355508A2 Pulse sequence for measuring the temporal course of a flow in a vessel using nuclear magnetic resonance |
| 02/28/1990 | EP0145729B1 Gas flow meter and utilization thereof |
| 02/28/1990 | CN2053747U Elbow shunted vane-wheel flowmeter |
| 02/28/1990 | CN1040093A Apparatus for measuring solid material flow in fluent gas-solid composite material and method of same |
| 02/27/1990 | US4905206 Ultrasonic doppler flow meter |
| 02/27/1990 | US4905203 Downhole doppler flowmeter |
| 02/27/1990 | US4905161 Flow stability reporting system for a liquid chromatography system |
| 02/27/1990 | US4904944 Flow measuring apparatus with analog, essentially linear output |
| 02/27/1990 | US4903649 Fuel supply system with pneumatic amplifier |
| 02/27/1990 | US4903533 Turbine flowmeter |
| 02/27/1990 | CA1266189A1 Apparatus and method for continuously measuring mass flow |
| 02/21/1990 | CN1039903A Apparatus for measuring flowing speed of preumatic and hydraulic transmitting granulose material |
| 02/21/1990 | CN1039902A Method and apparatus for fourier processing of pulsed doppler signals |
| 02/20/1990 | US4903001 Detecting element using an electrically resistive body, for determining a parameter |
| 02/20/1990 | US4901583 Electromagnetic pick-up device for measuring volume flows of thick, highly abrasive suspensions |
| 02/15/1990 | DE3827444A1 Method and device for detecting a liquid flow in a line (conduit) |
| 02/15/1990 | DE3827156A1 Method and device for the determination of the fuel consumption of internal combustion engines |
| 02/14/1990 | EP0354649A2 Close-coupled mass airflow meter and throttle plate assembly |
| 02/14/1990 | EP0354598A2 Probe for the thermal mass flow measurement of gases and liquids |
| 02/14/1990 | EP0354318A1 Flow meter with cleaning means |
| 02/13/1990 | US4901018 Nuclear magnetic resonance net organic flowmeter |
| 02/13/1990 | US4899593 Electrode structure for electromagnetic flowmeter |
| 02/13/1990 | US4899592 Flat linear flowmeter |
| 02/13/1990 | US4899588 Method and apparatus for determining elastic constants in tubes |
| 02/13/1990 | US4899584 Fluidic amplifier for sensing fluid motion |
| 02/13/1990 | US4899582 Air system analyzer |
| 02/08/1990 | WO1990001146A1 Asymmetrical displacement flowmeter |
| 02/08/1990 | DE3837598A1 Method and device for obtaining milk samples from a flow conduit |
| 02/07/1990 | EP0353996A2 A flow sensor |
| 02/07/1990 | EP0353247A1 A system for determining liquid flow rate through leaks in impermeable membrane liners |
| 02/06/1990 | US4899101 Online capacitive densitometer |
| 02/06/1990 | US4899046 Optical sensor of physical magnitude |
| 02/06/1990 | US4898217 Device for metering the mass of natural gas for fueling motor vehicles |
| 02/06/1990 | US4898036 Flow responsive transmitter and indicator |
| 02/06/1990 | EP0323968A4 Method and apparatus for measuring volume fluid flow. |
| 02/06/1990 | CA1265607A1 Non-invasive blood flow measurements utilizing autoregressive analysis with averaged reflection coefficients |
| 01/31/1990 | EP0352283A1 Fluid leak detection system for determining the rate of fluid leakage through a geomembrane |
| 01/31/1990 | EP0352274A1 Mass flow fuel injection control system. |
| 01/30/1990 | US4896542 Portable wastewater flow meter |
| 01/30/1990 | US4896541 Vortex generating mass flowmeter |
| 01/30/1990 | US4896540 Aeroacoustic flowmeter |
| 01/30/1990 | US4896534 Float-type flowmeter |
| 01/30/1990 | CA1265224A1 Flowmeter |