Patents
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)
01/2004
01/13/2004US6675660 Composition pulse time-of-flight mass flow sensor
01/13/2004US6675644 Thermo-sensitive flow rate sensor
01/08/2004WO2004003943A1 STABLE HIGH TEMPERATURE SENSOR/HEATER SYSTEM AND METHOD WITH TUNGSTEN ON AlN
01/08/2004WO2004003669A2 Method for testing the integrity of dpf's
01/08/2004WO2004003492A2 Noninvasive characterization of a flowing multiphase fluid using ultrasonic interferometry
01/08/2004WO2004003484A2 Venturi augmented flow meter
01/08/2004WO2004003483A1 Mass flow meter with chip-type sensors
01/08/2004WO2003008912B1 Multi-phase compensated spinner flow meter
01/08/2004WO2002099439B1 Fluoropolymer flowmeter
01/08/2004US20040006436 Ultrasonic system and technique for fluid characterization
01/08/2004US20040006429 Method and apparatus for determining flow rates
01/08/2004US20040005496 Means for measuring the liquid level in a reservoir for a fuel cell
01/08/2004US20040004137 Flow resistance setting nozzle
01/08/2004US20040003667 Fluid flow transducer module and assembly
01/08/2004US20040003659 Gas-flow measuring instrument
01/08/2004US20040003658 Acoustic doppler downhole fluid flow measurement
01/08/2004DE10326656A1 Durchflusssensor Flow sensor
01/08/2004DE10326646A1 Verfahren zum Betreiben einer Sensoreinheit A method of operating a sensor unit
01/08/2004DE10325786A1 Positionsmessvorrichtung, Durchflussmesser und Positionsmessverfahren Position measuring apparatus, flow meter and position measuring method
01/08/2004CA2769798A1 Noninvasive characterization of a flowing multiphase fluid using ultrasonic interferometry
01/07/2004EP1378731A1 Water meter body with curved external tubes
01/07/2004EP1378730A1 Liquid meter with sheet metal enclosed plastic housing
01/07/2004EP1378729A1 Thermal mass flow sensor with inclined bypass channel inlet
01/07/2004EP1378728A2 Thermal type flow measuring instrument with mold casing in metal insert
01/07/2004EP1378727A1 Ultrasound mass flow meter
01/07/2004EP1378726A1 Single jet meter for liquids
01/07/2004EP1377807A1 Chemically inert flow control with non-contaminating body
01/07/2004EP1377800A1 Flowmeter
01/07/2004EP1214635B9 A system and method for a digital mass flow controller
01/07/2004EP0923710B1 Improved annular flow monitoring apparatus
01/07/2004EP0923709B1 Device for measuring the volumetric flow of a fluid
01/07/2004CN2597953Y Short pipe liquid distributing part for dispersing dye
01/07/2004CN2597952Y Microflow sensor
01/07/2004CN2597951Y Integrated throttle-type flow sensor
01/07/2004CN2597950Y Fixed self-vibration damping differential flow sensor
01/07/2004CN1466713A Pointing device for position
01/07/2004CN1466643A Control gates
01/07/2004CN1465958A Small power consumption electromagnetic valve for metering flow
01/06/2004US6675111 Method and apparatus for measuring flow velocity and method and apparatus for measuring flow rate
01/06/2004US6675110 Testing valve assemblies
01/06/2004US6672173 Flow meter
01/06/2004US6672172 Triggered flow measurement
01/06/2004US6672166 Ultrasonic transducer system
01/06/2004US6672154 Flow rate sensor unit, flowmeter and flow sensor
01/06/2004US6672153 Mass airflow measuring apparatus
01/06/2004US6672146 Thermal resistor type air flow measuring apparatus
01/06/2004US6672131 Method for operating a measurement instrument
01/02/2004EP1376073A2 Thermal type flow rate measuring apparatus
01/02/2004EP1376072A2 Thermal type air flow measuring instrument
01/02/2004EP1376071A2 Air-flow meter for internal combustion engines
01/02/2004EP1376070A1 Flowmeter
01/02/2004EP1376069A1 Ultrasonic flow measuring method
01/02/2004EP1374940A2 Respiratory humidification system
01/02/2004EP1374259A2 Electromagnetic actuator for intrinsically safe devices
01/02/2004EP1373838A1 A device for measuring gas flow-rate, particularly for burners
01/02/2004EP1372828A2 Biochips including ion transport detecting structures and methods of use
01/02/2004EP0763191B1 Thermal flow sensor
01/01/2004US20040002821 Flowmeter and flowmeter system
01/01/2004US20040000197 Venturi augmented flow meter
01/01/2004US20040000196 Flow sensor and method for producing the same
01/01/2004US20040000186 Method for testing the integrity of dpfs
12/2003
12/31/2003WO2004001516A1 Apparatus and method for pressure fluctuation insensitive mass flow control
12/31/2003WO2004001349A1 Method and apparatus for validating the accuracy of a flowmeter
12/31/2003WO2004001348A2 Flow testing system and method
12/31/2003WO2004001344A1 Method for determining rheological parameters of a fluid
12/31/2003WO2004001343A2 Vortex flowmeter
12/31/2003WO2003098163A8 Optimized convection based mass airflow sensor circuit
12/31/2003WO2003078931A3 Switch for an electronic measuring system
12/31/2003CN2596330Y Power source of electronic flow meter
12/31/2003CN2596329Y High sensitivity single flow beam water meter
12/31/2003CN2596328Y 流量传感器 Flow Sensor
12/31/2003CN1464290A Flow meter microcomputer monitoring and control system
12/31/2003CN1133137C 集成i/o信号电路及配置集成i/o信号电路的方法 Ways to integrate i / o signal integrated circuits and configuration i / o signal circuits
12/31/2003CN1133069C 流量传感器 Flow Sensors
12/30/2003US6671584 Mass flow rate-measuring method and mass flow rate control apparatus
12/30/2003US6670582 Micro-thermocouple for a mass flow meter
12/30/2003US6669636 Ultrasound transmitter and/or receiver system
12/30/2003US6669557 Apparatus for measuring parameters of material
12/30/2003US6668665 Gas level monitoring system and gas flow rate sensor used therein
12/30/2003US6668664 Ultrasonic flowmeter and manufacturing method thereof
12/30/2003US6668663 Method and apparatus to determine flow rate with the introduction of ambient air
12/30/2003US6668643 Optical flow-meter device
12/30/2003US6668642 Apparatus and method for thermal isolation of thermal mass flow sensor
12/30/2003US6668641 Apparatus and method for thermal dissipation in a thermal mass flow sensor
12/25/2003US20030236643 Apparatus and method for calibration of mass flow controller
12/25/2003US20030236639 Sewer flow analysis method
12/25/2003US20030236638 Apparatus and method for displaying mass flow controller pressure
12/25/2003US20030236635 Method and apparatus for determining the composition of fluids
12/25/2003US20030236592 Apparatus and method for mass flow controller with network access to diagnostics
12/25/2003US20030234048 Apparatus and method for mass flow controller with embedded web server
12/25/2003US20030234047 Apparatus and method for dual processor mass flow controller
12/25/2003US20030234046 Apparatus and method for self-calibration of mass flow controller
12/25/2003US20030234045 Apparatus and method for mass flow controller with on-line diagnostics
12/25/2003US20030234044 Apparatus and method for mass flow controller with a plurality of closed loop control code sets
12/25/2003US20030234039 Apparatus and method for pressure fluctuation insensitive mass flow control
12/25/2003US20030233886 Flow rate sensor
12/25/2003US20030233885 Fluid metering and control device
12/25/2003US20030233878 Vibratory transducer
12/25/2003US20030233868 Vibratory transducer
12/25/2003US20030233860 Method and apparatus for validating the accuracy of a flowmeter