| 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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| 12/20/1990 | DE3919283A1 Controlling liq. flowing in dishwashing supply pipe - in which pipe contains magnetic valve and leads to delivery outlet with orifice plate |
| 12/19/1990 | EP0403142A2 Compensated thermal flux mass flowmeter |
| 12/19/1990 | EP0402460A1 Electromagnetic flow meter. |
| 12/19/1990 | EP0286670B1 Density insensitive coriolis mass flow rate meter |
| 12/19/1990 | CN2067821U 保安煤气表 Security gas meter |
| 12/18/1990 | US4979112 Method and apparatus for acoustic measurement of mud flow downhole |
| 12/18/1990 | US4978863 Method and apparatus for fiber optic backscattered light measurement to determine flow rates of multi-phase streams |
| 12/18/1990 | US4977916 Mass flow controller |
| 12/18/1990 | US4977781 Vortex flow meter |
| 12/16/1990 | CA2056391A1 Extended measurement capability transmitter having shared overpressure protection means |
| 12/13/1990 | DE3919126A1 Compensating transformer noise voltage of magnetic-inductive flowmeter - using null speed electrode signal and reference voltage to determine noise factor |
| 12/13/1990 | DE3918570A1 Fuel tank IC engine - has additive dosing section, e.g. for catalytic additive, controlled according to fuel throughput in filler |
| 12/12/1990 | EP0401225A1 Circuit controlled flow probe. |
| 12/12/1990 | EP0282552B1 Mass flow meter for flowing media, equipped with coriolis force measuring systems |
| 12/12/1990 | CN2067399U Flared glass rotameter |
| 12/11/1990 | US4977385 Distributed RTD |
| 12/11/1990 | US4976377 Liquid and powder measuring apparatus |
| 12/11/1990 | US4976162 Enhanced pressure measurement flow control system |
| 12/11/1990 | US4976157 Fiber optic flow sensor |
| 12/11/1990 | US4976156 Impulse sensor with balanced mass-stiffness distribution |
| 12/11/1990 | US4976155 Fluidic flowmeter |
| 12/11/1990 | US4976154 Arrangement for contactless measurement of the volume flow or mass flow of a moving medium |
| 12/11/1990 | US4976153 Karman vortex flow meter |
| 12/11/1990 | US4976145 Flow rate meter |
| 12/11/1990 | US4976140 Intake air flow rate measuring apparatus for use in internal combustion engine |
| 12/10/1990 | WO1990015310A1 Improved stability coriolis mass flow meter |
| 12/05/1990 | EP0400981A2 A null flow sensor |
| 12/05/1990 | EP0400707A2 Method for determining dynamic flow characteristics of multiphase flows |
| 12/05/1990 | EP0400012A1 Circuit arrangement with a flow probe actuated by a bridge circuit |
| 12/04/1990 | US4975645 Impedance cross correlation logging tool for two phase flow measurement |
| 12/04/1990 | US4974563 Apparatus for estimating intake air amount |
| 12/04/1990 | US4974452 Homogenizing and metering the flow of a multiphase mixture of fluids |
| 12/04/1990 | US4974445 Hot wire type of air flow meter and internal combustion engine using the same |
| 12/04/1990 | CA1277372C Electromagnetic flowmeter for conductive and dielectric fluids and its applications in particular in oilfield |
| 12/04/1990 | CA1277245C Centrifugal system with sump for separating air from fuel |
| 12/04/1990 | CA1277193C Throttle body with internally mounted anemometer |
| 12/03/1990 | WO1990015309A1 Coriolis mass flow rate meter having a substantially increased noise immunity |
| 12/02/1990 | CA2018124A1 "null" flow sensor |
| 11/28/1990 | EP0399876A1 Method and apparatus for measuring the properties of a multiphase fluid |
| 11/28/1990 | EP0399733A2 Apparatus and method for measuring a prescribed volume of liquid |
| 11/28/1990 | EP0236405B1 Apparatus and process for measuring multi-phase mass fluid flow |
| 11/28/1990 | CN2066573U Water meter |
| 11/27/1990 | US4973062 Vortex flowmeter |
| 11/27/1990 | US4972724 Coriolis-type mass flowmeter having a straight measuring tube |
| 11/27/1990 | US4972723 Vortex generator-sensor |
| 11/27/1990 | US4972722 Magnetic inductive flow meter |
| 11/27/1990 | US4972708 Thermal mass flow-meter particularly for gases |
| 11/27/1990 | US4972707 Apparatus for measuring the flow of a fluid |
| 11/27/1990 | US4972702 Intake air quantity measuring apparatus |
| 11/27/1990 | CA2017322A1 Method for determining dynamic flow characteristics of multiphase flows |
| 11/27/1990 | CA1277022C Method and apparatus for measuring volume fluid flow |
| 11/24/1990 | CA2017406A1 Ultrasonic flow nozzle cleaning method and apparatus |
| 11/22/1990 | EP0398103A1 Mass-flow measuring device |
| 11/22/1990 | DE3935672A1 Flow measurement arrangement for medical infusion devices - has transparent flow chamber contg. flat spring and deflection measurement arrangement |
| 11/22/1990 | DE3916529A1 Measuring mass flow of gaseous media through heat exchanger - measuring gas mass flow to determine liquid cooling in vehicle from press. difference across heat exchanger |
| 11/22/1990 | DE3916056A1 Measuring mass and/or vol. throughflow and/or density and/or viscosity - using sensor and choke and/or baffle element to detect differential pressure of fluid |
| 11/22/1990 | DE3915871A1 Intake air stream measurer for IC engine of motor vehicle - has two resistance layers on carrier in intake channel, one serving as measuring sensor and other as heater |
| 11/21/1990 | CN2066129U Instantaneous delivery indicating device |
| 11/21/1990 | CN1010504B Mtehod for measuring flow characteristics of pneumatic element |
| 11/21/1990 | CN1010503B Flow meter for measuring the flow rate of liquid |
| 11/20/1990 | US4972180 Apparatus for determining rate of discharge from nozzle for spraying aqueous solution of hydrogen peroxide |
| 11/20/1990 | US4971516 Surge control in compressors |
| 11/20/1990 | US4971109 Valve and arrangement for fire suppression water sprinkler system |
| 11/20/1990 | US4971005 Fuel control utilizing a multifunction valve |
| 11/20/1990 | US4970902 Karman's vortex flow meter |
| 11/15/1990 | WO1990013797A1 Urine collection monitor with temperature sensing |
| 11/14/1990 | EP0397596A1 Ultrasonic flowmeter |
| 11/14/1990 | EP0396566A1 Transducer for an electromagnetic flow meter. |
| 11/13/1990 | US4969364 Flowmeter |
| 11/13/1990 | US4969363 Electromagnetic flowmeter capable of simultaneous measurement of flow rate and conductivity of fluid |
| 11/13/1990 | US4969357 Compensated thermal flux mass flowmeter |
| 11/07/1990 | EP0395721A1 Control and detection circuitry for mass airflow sensors. |
| 11/06/1990 | WO1990013859A1 Multiphase process mixing and measuring system |
| 11/06/1990 | US4967753 Apparatus, system and method for measuring spatial average velocity and/or volumetric flow of blood in a vessel |
| 11/06/1990 | US4967603 Inductive flow probe for measuring the flow velocity of a stream of liquid metal |
| 11/02/1990 | WO1990013795A2 Enhanced pressure measurement flow control system |
| 10/31/1990 | EP0395126A1 Mass-flow meter with temperature sensors |
| 10/31/1990 | DE3935778A1 Mass measurer for flowing medium - has hot film air mass measurer with two hot films in flow measuring pipe esp. for intake air of IC engine in motor vehicle |
| 10/31/1990 | DE3914216A1 Advancement rate monitor for discontinuously flowing medium - uses heater for local warming of medium and temp. sensor supplying signal to evaluating unit |
| 10/31/1990 | CN2064881U A series of water meters of insertion type horizontal helical-winged system |
| 10/30/1990 | US4966462 Series cell light extinction monitor |
| 10/30/1990 | US4966307 Integrated multifunction regulator station for gas supply to a secondary mains |
| 10/30/1990 | US4966040 Karman vortex flowmeter with signal waveform shaper circuit |
| 10/30/1990 | US4966037 Cantilever semiconductor device |
| 10/30/1990 | US4966036 Air flow rate meter |
| 10/30/1990 | US4966033 Air flow metering apparatus for internal combustion engines |
| 10/30/1990 | CA1275584C Flow meter with displaceable flow rate indicator |
| 10/25/1990 | DE3943437A1 Heat transfer measurement arrangement - has temp. measurement element on carrier foil clamped against housing requires no separate electronics housing |
| 10/25/1990 | DE3913374A1 Control and measurement valve for liquid, gas or vapour flow - has variable cross=section choke, and flow speed sensor |
| 10/24/1990 | EP0394085A1 Method and device for measurement of multiphase flow, especially in oilwells |
| 10/24/1990 | EP0393938A1 Flowmeters |
| 10/24/1990 | EP0393859A1 Turbine gas flow meter |
| 10/24/1990 | EP0393141A1 Silicon-based mass airflow sensor. |
| 10/24/1990 | EP0220289B1 Non-invasive blood flow measurements utilizing autoregressive analysis with averaged reflection coefficients |
| 10/24/1990 | CN1046386A Impulse method for testing urine flow and instrument thereof |
| 10/23/1990 | US4964307 Liquid flow measuring device |
| 10/23/1990 | US4964297 Viscosimeter |
| 10/19/1990 | WO1990013007A1 Flow meters |
| 10/19/1990 | CA2053273A1 Flow meters |
| 10/18/1990 | WO1990012239A1 Sealing means for fluid handling system |