| 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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| 10/22/1991 | US5058426 Flow rate sensor |
| 10/19/1991 | WO1991016603A2 Method and apparatus for continuously measuring volumetric flow |
| 10/17/1991 | WO1991015738A1 Improvements to two and three-phase flow measurement |
| 10/17/1991 | WO1991015737A1 Ultrasonic flowmeter for fluids |
| 10/17/1991 | DE4012081A1 Verfahren und anordnung zum messen von luftmengen Method and arrangement for measuring quantities of air |
| 10/17/1991 | DE4012080A1 Verfahren zum aufbau von mikromechanischen sensoren A method for building of micro-mechanical sensors |
| 10/17/1991 | DE4011526A1 Vorrichtung zur ultraschall-durchflussmessung von stroemenden medien Apparatus for ultrasonic flow measurement by pouring media |
| 10/16/1991 | EP0452134A2 Diaphragm-type sensor |
| 10/16/1991 | EP0451356A1 Volume flowmeter |
| 10/16/1991 | EP0451355A1 Measuring device for determining the flow of a flowing fluid |
| 10/16/1991 | EP0451308A1 Circuit arrangement to measure the flow of a fluid containing electrical charges |
| 10/16/1991 | CN2086889U Flow tester for two-phase liquid |
| 10/16/1991 | CN1055423A Improvements to two and three-phase flow measurement |
| 10/15/1991 | US5056373 Flow responsive transmitter and indicator |
| 10/15/1991 | US5056362 Strengthening a silicon micromachined mass air flow sensor in the region of its hot element |
| 10/15/1991 | US5056357 Acoustic method for measuring properties of a mobile medium |
| 10/15/1991 | CA1290595C Mass flow meter based on the coriolis principle |
| 10/15/1991 | CA1290594C Annular venturi flow measuring device |
| 10/10/1991 | DE4010728A1 Inductive flowmeter using two electromagnet arrangements - having overlapping stimulation phases with electrodes for charge displacement detection |
| 10/10/1991 | DE4010727A1 Flow measurer for at least slightly conducting medium - measures capacitance between electrode and medium practically independently of lever of medium in pipe |
| 10/09/1991 | EP0450563A1 Thermo-type air flow meter |
| 10/09/1991 | EP0311610B1 Coriolis mass flowmeters |
| 10/09/1991 | CN2086406U Miniature adjusting capillary tube flowmeter |
| 10/08/1991 | US5056047 Method and device for measuring fluidic or calorimetric parameters |
| 10/08/1991 | US5054326 Density compensator for coriolis-type mass flowmeters |
| 10/08/1991 | US5054325 Flow measurement by collision characterization |
| 10/08/1991 | US5054322 Piezo electric relative motion sensor |
| 10/08/1991 | CA1290211C Enhanced pressure measurement flow control system |
| 10/03/1991 | WO1991014914A1 Method of measuring feed rate of waste to be burnt |
| 10/03/1991 | WO1991014862A1 I.c. engine airflow meter having speed-based automatic gain control |
| 10/02/1991 | EP0449604A1 Lightweight polyarylene sulphide resin composition and moulded article thereof |
| 10/02/1991 | EP0449443A1 Hot wire air flow meter |
| 10/02/1991 | EP0449270A1 Fluid flow measuring device |
| 10/02/1991 | EP0448913A1 Mass flow meter working on the Coriolis principle |
| 10/02/1991 | DE4010210A1 Arrangement for measuring liquid nutrient flows in tree trunks - uses passive or active heating to constant temp. and measures delivered power as measure of flow rate |
| 10/02/1991 | DE4010148A1 Verbesserung fuer einen ultraschall-gas-/fluessigkeits-durchflussmesser Improvement for an ultrasonic gas / liquid flow meters |
| 10/02/1991 | DE4008772A1 Measurement unit for liquid meter - is improved to eliminate effect on accuracy of internal chamber in input region |
| 10/02/1991 | CN2085953U Outdoor monitor for pipeline gas (natural gas) flow |
| 10/02/1991 | CN2085952U Double-vortex street flow transducer |
| 10/01/1991 | US5052425 Method and apparatus for continuous removal of a sub-quantity from a gas stream |
| 10/01/1991 | US5052231 Mass flow gauge for flowing media with devices for determination of the Coriolis force |
| 10/01/1991 | US5052230 Method and arrangement for flow rate measurement by means of ultrasonic waves |
| 10/01/1991 | US5052229 Vortex flowmeter |
| 10/01/1991 | US5052220 Apparatus for measurements related to fluid flow in a borehole |
| 10/01/1991 | CA2039434A1 Lightweight polyarylene sulfide resin composition and molded article thereof |
| 09/30/1991 | WO1991014925A1 Improvement to gas/liquid ultrasonic flowmeter |
| 09/30/1991 | CA2079213A1 Gas/liquid ultrasonic flowmeter |
| 09/26/1991 | DE4108602A1 Volume flow measurement arrangement for e.g. gases - contains deflecting light conductor within flow tube having free end offset with respect to light detector |
| 09/26/1991 | DE4009284A1 Fluid meter - has rotatable valve wheel and ultrasonic transmitter-receiver for contactless measurement of rotation and direction |
| 09/25/1991 | EP0447811A1 Flow monitoring and measuring device |
| 09/24/1991 | US5051922 Method and apparatus for the measurement of gas/liquid flow |
| 09/24/1991 | US5051909 Method and means for determining exhaust backpressure in a crankcase scavenged two-stoke engine |
| 09/24/1991 | US5050772 Apparatus for monitoring a flow of fluid through a filter medium |
| 09/24/1991 | US5050439 Coriolis-type mass flowmeter circuitry |
| 09/24/1991 | US5050438 Method and apparatus for measuring the flow of heavy crude |
| 09/24/1991 | US5050429 Microbridge flow sensor |
| 09/24/1991 | US5050428 Apparatus for measuring air flow intake of internal combustion engine |
| 09/19/1991 | WO1991011731A3 Inductive flow meter |
| 09/19/1991 | DE4028780A1 Flowmeter using impeller wheel - has exchangeable nozzle plate of predetermined bore or port in inlet and/or outlet channel |
| 09/18/1991 | EP0446920A2 Fluid flow control device |
| 09/18/1991 | EP0446241A1 A device for measuring the rate of flow of a flowing fluid. |
| 09/18/1991 | CN2085057U Low-resistance water flow measuring instrument for pipeline |
| 09/18/1991 | CN2085056U Water flow indicator for water treating apparatus |
| 09/18/1991 | CN1013994B Apparatus of electromagnetic flowmeter eleotrode |
| 09/18/1991 | CN1013926B Control of suspension density using radiation source |
| 09/17/1991 | US5049860 Two wire flow condition sensing system |
| 09/17/1991 | US5049823 Method and device for measuring the qualities of a multiphase fluid |
| 09/17/1991 | US5048351 Mass flow sensor |
| 09/17/1991 | US5048350 Electromagnetic driver and sensor |
| 09/17/1991 | US5048349 Coriolis-type mass flow meter comprising at least two straight parallel vibrating tubes |
| 09/17/1991 | US5048348 Fluid flow volumetric determination apparatus and method |
| 09/17/1991 | US5048332 Flow meter for measuring fluid flow with multiple temperature sensors |
| 09/17/1991 | US5048323 Fluid metering |
| 09/12/1991 | DE4007282A1 Measurement and control for water outflow from raw overflow tank - contains measurement device in outflow pipe of rain overflow tank with motorised selector and level sensor in static chamber |
| 09/11/1991 | EP0446023A1 Fluid flow measurement |
| 09/11/1991 | EP0445285A1 Vortex flowmeter with balanced vortex sensor |
| 09/11/1991 | EP0233237B1 Low r.f. dosage magnetic resonance imaging of high velocity flows |
| 09/11/1991 | CN2084609U Wide measuring range flow measuring tube |
| 09/11/1991 | CN2084608U Micro computor sewage flow meter for open ditch |
| 09/11/1991 | CN1054484A Differential pressure type mass flowmeter for vortex street |
| 09/11/1991 | CN1013897B Flowmeter for small flow |
| 09/10/1991 | US5047632 Method for determining dynamic flow characteristics of multiphase flows |
| 09/10/1991 | US5046500 Doppler flow velocity meter |
| 09/10/1991 | US5046370 Flow meter with improved turbine blades |
| 09/10/1991 | US5046369 Compensated turbine flowmeter |
| 09/10/1991 | US5046362 Grain loss monitors for harvesting machines |
| 09/10/1991 | US5046360 Aerodynamic probe internal constructions |
| 09/05/1991 | WO1991013321A1 Improved flow meter |
| 09/04/1991 | EP0444462A1 Method and device for heating and measuring mass flow of circulating fluid, especially liquid |
| 09/04/1991 | EP0444243A2 Procedure and device for measurement of gas flow and its direction |
| 09/04/1991 | CN1013798B Air inleakage monitoring system |
| 09/03/1991 | WO1991012765A1 Multiprobes with thermal diffusion flow monitor |
| 09/03/1991 | US5045963 Protective circuit for the induction coil of a magnetically inductive flow meter |
| 09/03/1991 | US5045692 Simultaneous fluid flow and fluid density measurements using rotameter and nuclear technology |
| 09/03/1991 | US5044209 Reaction force flowmeter |
| 09/03/1991 | US5044208 Double-pigtail-shaped, Coriolis-type mass flow rate meter |
| 09/03/1991 | US5044207 Mass flow measurement |
| 09/03/1991 | US5044199 Flowmeter |
| 09/03/1991 | US5044196 Method and apparatus for detecting deterioration of a hot-wire type sucked air flow quantity-detecting device for an engine |
| 09/03/1991 | CA2076667A1 Multiprobes with thermal diffusion flow monitor |