| 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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| 01/26/1982 | US4312240 Corrosion-resistant variable area flowmeter |
| 01/26/1982 | US4312239 Method and apparatus for ultrasonic measurement of the rate of flow |
| 01/26/1982 | US4312238 Electro-acoustic flowmeter |
| 01/26/1982 | US4312237 Vortex generating device |
| 01/26/1982 | US4312236 Vortex generating device |
| 01/26/1982 | US4312235 Sensor and meter for measuring the mass flow of a fluid stream |
| 01/26/1982 | US4312234 Two-phase flowmeter |
| 01/26/1982 | CA1116942A1 Flow responsive device |
| 01/21/1982 | WO1982000197A1 Device for measuring and controlling gas flow rates |
| 01/19/1982 | US4311054 Mass flowmeter with sensor gain control |
| 01/19/1982 | US4311042 Fuel control measuring apparatus for internal combustion engine |
| 01/12/1982 | US4309909 Crystal stabilized voltage to frequency converter with digital calibration for flowmeters |
| 01/12/1982 | CA1116263A1 Method and apparatus for monitoring fluid flow through a drill string |
| 01/12/1982 | CA1115988A1 Flow sensor responsive to fluid leakage flows within a range from above a predetermined minimum to below a predetermined maximum and nonresponsive to fluid leakage flows beyond said range |
| 01/12/1982 | CA1115987A1 Flow sensor responsive to fluid flows within a range from above a predetermined minimum to below a predetermined maximum and nonresponsive to fluid flows beyond said range |
| 01/12/1982 | CA1115986A1 Flow-meter |
| 01/05/1982 | US4309689 Signal transducing unit |
| 01/05/1982 | US4308755 Liquid volumetric flowmeter |
| 01/05/1982 | US4308754 Ultrasonic flowmeter |
| 01/05/1982 | US4308752 Magnetic flowmeter |
| 01/05/1982 | CA1115845A1 Net oil computer or the like |
| 01/05/1982 | CA1115577A1 Method for developing residual-moisture photographs |
| 01/05/1982 | CA1115557A1 Variable area meter insert unit |
| 01/05/1982 | CA1115556A1 Flow meter |
| 12/30/1981 | EP0042433A1 Karman vortex street flowmeter |
| 12/30/1981 | EP0042432A1 Gas mass flow rate detector and fuel injection system using the same for internal combustion engine |
| 12/29/1981 | US4307619 Dual output vortex-shedding flowmeter having drag-actuated torsional sensor |
| 12/29/1981 | US4307618 Fluid flowmeter having an optical fiber sensing element |
| 12/23/1981 | EP0042245A1 Crop metering device for combine harvesters |
| 12/23/1981 | EP0042242A1 Weighing device for fluent material |
| 12/22/1981 | US4307452 Fuel consumption measuring apparatus |
| 12/22/1981 | US4306461 Meter incorporating a digital fullscale setting device |
| 12/22/1981 | US4306457 Liquid meter comprising a circuit for reducing a detection error resulting from a variable flow rate |
| 12/22/1981 | US4306453 Apparatuses for measuring the flow rate of a flowing medium |
| 12/22/1981 | CA1114647A1 Device for measuring the velocity of a urine discharge |
| 12/22/1981 | CA1114646A2 Ram pump flowmeter |
| 12/22/1981 | CA1114645A1 Device for measuring the force of a urine discharge |
| 12/16/1981 | EP0041667A2 A method and apparatus for maintaining constant the speed of an air flow within a room |
| 12/16/1981 | EP0041625A1 Electronic circuit for the processing of a measured value of a succession of vortices caused by a Karman vortex street |
| 12/15/1981 | US4305548 Energy loss detection system |
| 12/15/1981 | US4305301 Measurement of the mass flow of a liquid |
| 12/15/1981 | US4305281 Self-correcting self-checking turbine meter |
| 12/15/1981 | CA1114511A1 Data processing apparatus |
| 12/15/1981 | CA1114202A1 Pump enclosed fluid flowmeter |
| 12/15/1981 | CA1114201A1 Composite fluid flowmeter with slotted arcuate axial exhaust |
| 12/15/1981 | CA1114200A1 Composite tangential and axial exhaust fluid flowmeter |
| 12/10/1981 | WO1981003542A1 Microprocessor controlled valve and pump flow indicators |
| 12/10/1981 | WO1981003523A1 Electronic control fuel injection device |
| 12/09/1981 | EP0041112A1 Mass flow meter for air in an internal-combustion engine |
| 12/08/1981 | US4304137 Air direction insensitive static pressure sensor |
| 12/08/1981 | US4304136 Electrical transducer responsive to fluid flow |
| 12/08/1981 | US4304131 Friction bearing for rotor pivot of liquid counter |
| 12/08/1981 | US4304130 Flow rate meter with temperature dependent resistor |
| 12/08/1981 | US4304129 Gas flow measuring apparatus |
| 12/08/1981 | US4304128 Apparatus for measuring the mass of a flowing medium |
| 12/08/1981 | US4304120 Automatic gas measurement and analysis for a test cell |
| 12/02/1981 | EP0040837A1 Ultrasonic flow meter |
| 12/01/1981 | US4303980 Electromagnetic flowmeter system having automatically adjusted response characteristics |
| 12/01/1981 | US4302980 Anesthesia machine with modular flowmeters |
| 11/26/1981 | WO1981003379A1 Device for measuring the amount flowing through and/or the speed of flow of a medium |
| 11/26/1981 | WO1981003378A1 Flow-operated measuring apparatus |
| 11/25/1981 | EP0040556A2 Airflow sensor of the vane type |
| 11/25/1981 | EP0040540A2 Chemical vapor delivery system and method for controlling the flow of vapor in a chemical vapor delivery system |
| 11/24/1981 | US4301686 Mass rate of flow meter with improved magnetic circuit |
| 11/24/1981 | CA1112899A1 Mass flowmeter |
| 11/18/1981 | EP0039732A1 Method for continuously determining the composition and mass flow of a slurry |
| 11/18/1981 | EP0039673A1 Method and apparatus for measuring fuel flow |
| 11/17/1981 | US4300402 Flow measuring needle and orifice for flow meter |
| 11/17/1981 | US4300401 Method and apparatus for determining fluid flow |
| 11/17/1981 | US4300400 Acoustic flowmeter with Reynolds number compensation |
| 11/17/1981 | US4300391 Hot wire anemometer for measuring the flow velocity of gases and liquids (II) |
| 11/10/1981 | US4299125 Air quantity metering apparatus |
| 11/10/1981 | US4299124 Device for measuring the mass of a flowing medium |
| 11/10/1981 | US4299121 Suction system in an engine |
| 11/10/1981 | CA1112351A1 Doppler flow meter and method |
| 11/04/1981 | EP0039244A1 Flow transducer |
| 11/04/1981 | EP0038840A1 Mass flowmeter. |
| 11/04/1981 | EP0038839A1 Mass flowmeter. |
| 11/03/1981 | US4297900 Averaging pitot primary system |
| 11/03/1981 | US4297899 Fluid flow sensor |
| 11/03/1981 | US4297898 Stabilized vortex-shedding flowmeter |
| 11/03/1981 | US4297897 Field replaceable electrode assembly for magnetic flowmeter |
| 11/03/1981 | US4297896 Field replaceable electrode assembly for magnetic flowmeter |
| 11/03/1981 | US4297895 Field replaceable electrode assembly for magnetic flowmeter |
| 11/03/1981 | US4297894 Mass flow sensor |
| 11/03/1981 | US4297893 Method and apparatus for measuring flow characteristics of moving fluid stream |
| 11/03/1981 | US4297881 Hot-wire flow rate measuring apparatus |
| 10/28/1981 | EP0038783A1 Apparatus for determining the rate of flow of urine |
| 10/28/1981 | EP0038354A1 Mass flowmeter. |
| 10/28/1981 | EP0038353A1 Mass rate of flow flowmeter. |
| 10/28/1981 | EP0038352A1 Mass flowmeter. |
| 10/28/1981 | EP0038351A1 Mass flowmeter. |
| 10/27/1981 | US4296636 Noise-reducing electrodes for electromagnetic flowmeter |
| 10/27/1981 | US4296628 System for detecting particles carried by a fluid flow |
| 10/27/1981 | CA1111281A1 Method and apparatus for stabilizing the flow coefficient for pitot-type flowmeters with a downstream-facing port |
| 10/21/1981 | EP0038258A1 Vortex-shedding flow meters |
| 10/21/1981 | EP0038020A2 Turbine wheel flow measuring device |
| 10/20/1981 | US4296472 Non-intrusive fluid measuring system |
| 10/20/1981 | US4295378 Method and apparatus for flow measurement using Doppler frequency shift |
| 10/13/1981 | US4295134 Liquid flow detecting device |