| 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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| 07/11/1989 | US4845984 Temperature compensation for a thermal mass flow meter |
| 07/06/1989 | DE3821690A1 Device for the measurement of small pressure differences |
| 07/06/1989 | DE3742443A1 Circuit arrangement for digitising an analog signal |
| 07/05/1989 | EP0323182A2 Milk flow indicator |
| 07/05/1989 | EP0323005A2 Hot wire type air flow meter |
| 07/05/1989 | EP0322981A2 Apparatus for determining rate of discharge from nozzle for spraying aqueous solution of hydrogen peroxide |
| 07/05/1989 | EP0322459A1 Hot wire type air flow meter |
| 07/05/1989 | CN2040637U Transformer of electromagnetic flowmeter for dive |
| 07/05/1989 | CN1004727B Electromagnetic flowmeter |
| 07/04/1989 | US4844396 Strap on pipe mounting |
| 07/04/1989 | US4844077 NMR imaging method |
| 07/04/1989 | US4843890 Coriolis mass flow rate meter having an absolute frequency output |
| 07/04/1989 | US4843889 Trapped-vortex pair flowmeter |
| 07/04/1989 | US4843882 Direct-heated flow measuring apparatus having improved sensitivity response speed |
| 07/04/1989 | US4843881 Fluid flow sensor system |
| 07/04/1989 | CA1256978A1 Device for detecting the presence of a gas in a liquid contained in an enclosure |
| 06/29/1989 | WO1989005974A1 A method for recording multi-phase flows through a transport system |
| 06/29/1989 | WO1989005968A1 Silicon-based sensors and method of making same |
| 06/29/1989 | WO1989005967A1 Control and detection circuitry for mass airflow sensors |
| 06/29/1989 | WO1989005966A1 Vortex generator-sensor |
| 06/29/1989 | WO1989005965A1 Vortex flowmeter |
| 06/29/1989 | WO1989005963A1 Silicon-based mass airflow sensor |
| 06/28/1989 | EP0322264A1 Apparatus for extracting a sample and measuring the flow of a liquid in a constant or pulsed circulation |
| 06/27/1989 | US4843445 Integrated semiconductor circuit and method for producing it, and use of such a circuit for providing a flow meter |
| 06/27/1989 | US4841938 Device for determining the direction of flow |
| 06/27/1989 | US4841787 Retractor tool |
| 06/27/1989 | US4841782 Target fluid flow indicator gauge |
| 06/27/1989 | US4841781 Flow rectifier for vortex flowmeter |
| 06/27/1989 | US4841780 Cross correlation flowmeter |
| 06/27/1989 | US4841769 Apparatus for measuring velocity of flow |
| 06/27/1989 | CA1256300A1 Measuring flow of insulating fluids |
| 06/22/1989 | DE3741972A1 Electrical flow or heat quantity meter |
| 06/22/1989 | DE3741896A1 Electrical flow or heat quantity meter |
| 06/21/1989 | EP0321016A2 A device for measuring continuously the mass flow rate of particulate material |
| 06/21/1989 | EP0320508A1 Improved parallel path coriolis mass flow meter. |
| 06/21/1989 | CN2039833U Two pointer differential pressure type flow manometer |
| 06/20/1989 | US4841244 Method and apparatus for on-sine monitoring of wear in machinery |
| 06/20/1989 | US4840148 Two cycle engine with low pressure crankcase fuel injection |
| 06/20/1989 | US4840072 Variable orifice flow meter |
| 06/20/1989 | US4840071 Convective attenuation flowmeter |
| 06/20/1989 | US4840062 Fiber optic current meter with plastic bucket wheel |
| 06/20/1989 | CA1255923A1 Non-obstructive thermodynamic flow meter |
| 06/15/1989 | WO1989005441A1 Fluidic flowmeter |
| 06/15/1989 | DE3740603A1 Device for measuring the volume flow of a liquid flowing out of or into an open container |
| 06/14/1989 | EP0319871A1 Thin film orthogonal microsensor for air flow and method for its fabrication |
| 06/14/1989 | CN2039410U Flow sensor |
| 06/13/1989 | US4838738 Pressure compensated weigh system |
| 06/13/1989 | US4838127 Ultrasonic flow meter |
| 06/13/1989 | US4838093 Flow meter and method of measuring flow |
| 06/13/1989 | US4838092 Vortex flow meter |
| 06/13/1989 | US4838091 Fludic oscillator flowmeters |
| 06/13/1989 | US4838078 Suction air amount measuring device for an engine |
| 06/13/1989 | US4838072 Method and appliance for evaluating the sound emission property of hollow components |
| 06/13/1989 | CA1255798A1 Method and apparatus for testing the outflow from hydrocarbon wells on site |
| 06/08/1989 | DE3837100A1 Stroemungsmesser mit messwert-ausgabe von auf dem faraday-effekt beruhenden optischen schalter Stroemungsmesser with reading-issuing based on the faraday effect optical switch |
| 06/08/1989 | DE3801770A1 Device for monitoring the flow of liquid or gaseous media |
| 06/08/1989 | DE3740531A1 Compound water meter with a partial-flow meter as main meter |
| 06/08/1989 | DE3740137A1 Method of protecting water circuits in buildings connected directly to district heating networks |
| 06/07/1989 | EP0319424A2 Vortex flowmeter transducer |
| 06/07/1989 | EP0319423A2 A flow rectifier for vortex flowmeter |
| 06/07/1989 | CN2039015U Directly-reading gas flowmeter for high and medium pressure turbine in oil field |
| 06/06/1989 | US4837708 Process and apparatus for determining flow rate of a flow medium in a flow line |
| 06/06/1989 | US4837512 Method and system for acquiring motional information of object in magnetic resonance |
| 06/06/1989 | US4836032 Method of determining the quality of steam for stimulating hydrocarbon production |
| 06/06/1989 | US4836017 Method and apparatus for determining oil content of oil well production |
| 06/06/1989 | US4836016 Method and apparatus for detecting abnormal state in pulse train generating sensor |
| 05/31/1989 | EP0318388A1 Apparatus for measuring the fluid-flow in a conduit |
| 05/31/1989 | EP0318241A2 Measuring the flow of a packed bed of particles |
| 05/31/1989 | CN2038625U Intelligent sewage flowmeter |
| 05/31/1989 | CN2038624U Tube shape direct-reading type flow meter for measuring instantaneous flow-rate |
| 05/30/1989 | US4835456 Cryogenic density and mass-flow measurement system |
| 05/30/1989 | US4835436 Piezoelectric impulse sensor |
| 05/30/1989 | US4835390 Apparatus and method for measuring bulk density using positron scattering and annihilation |
| 05/30/1989 | US4833925 Bearingless flowmeter |
| 05/30/1989 | US4833924 Differential pressure transmitter, a square root extractor device therefor and methods of making the same |
| 05/30/1989 | US4833923 Vortex meter plug |
| 05/30/1989 | US4833912 Flow measuring apparatus |
| 05/30/1989 | CA1254993A1 Fluid velocity measuring method and apparatus |
| 05/24/1989 | EP0317340A2 Improvements in single vibrating tube transducers |
| 05/24/1989 | EP0316908A2 Process for the measurement of mass flow rate using the Coriolis principle and mass flow rate measuring apparatus using the Coriolis principle |
| 05/24/1989 | EP0316511A2 Transducer structure |
| 05/24/1989 | DE3816045A1 Optical fibre device, in particular for mass flow rate meters |
| 05/24/1989 | DE3738018A1 Verfahren zur fehlererkennung und -korrektur, insbesondere bei einem massendurchfluss-messgeraet A method for error detection and correction, especially in a mass flowmeter |
| 05/23/1989 | US4831885 Acoustic wave supressor for Coriolis flow meter |
| 05/23/1989 | US4831884 Device for determining the flow velocity of a medium in a cylindrical conduit |
| 05/23/1989 | US4831883 Double bluff body vortex meter |
| 05/23/1989 | US4831876 Measurement probe |
| 05/23/1989 | US4831875 Water trap valve for fail safe operation of an air inleakage monitoring system in a steam turbine |
| 05/23/1989 | CA1254649A1 Acoustic scintillation liquid flow measurement |
| 05/18/1989 | WO1989004482A1 Acoustic method for measuring properties of a mobile medium |
| 05/18/1989 | WO1989004463A1 Process and device for detecting errors in measurements of mass flow of materials |
| 05/18/1989 | WO1989004462A1 A differential pressure transmitter, a square root extractor device therefor, and methods of making the same |
| 05/18/1989 | DE3737188A1 Vorrichtung zur messung der stroemungsgeschwindigkeit der ansaugluft von verbrennungsmotoren Device for measuring the flow velocities of the intake air of internal combustion engines |
| 05/17/1989 | EP0316200A2 Medical ultrasound imaging system |
| 05/17/1989 | EP0316060A2 Device for measuring the flow rate of a stream of granular material |
| 05/17/1989 | CN2037840U Flow monitor |
| 05/17/1989 | CN1032982A Crystal encoding method of real-time pseudo-colour satelite cloud chart |
| 05/16/1989 | US4829833 Liquid impedance flow monitors |
| 05/16/1989 | US4829832 Convective inertia force flowmeter |
| 05/16/1989 | US4829831 Device for measuring flow rate in a pipe |