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)
11/2004
11/10/2004CN1175253C Parameter sensors for vibrating conduit utilizing normal modal decomposition and method thereof
11/10/2004CN1175252C Device for measuring mass of a flowing medium
11/10/2004CN1175251C Measuring device for measuring mass of medium flowing in a line
11/10/2004CN1175250C Ultrasonic flow rate measurer
11/09/2004US6816808 Peak switch detector for transit time ultrasonic meters
11/09/2004US6816793 Method for predicting flow properties of powders
11/09/2004US6814427 Systems and methods for accurately measuring fluid
11/09/2004US6813964 Fluid flow measurement device
11/09/2004US6813962 Distributed sound speed measurements for multiphase flow measurement
11/09/2004US6813945 Resistive wire mass flow meters
11/09/2004US6813944 Flow sensor
11/09/2004US6813943 Method and apparatus for conditioning a gas flow to improve a rate of pressure change measurement
11/09/2004CA2296590C Symmetrical ultrasonic gas flow meter housing and related multi-configuration gas flow meter assembly
11/04/2004WO2004095155A1 Method and apparatus for conditioning a gas flow to improve a rate of pressure change measurement
11/04/2004WO2004094990A2 Volumetric control apparatus for fluid dispensing
11/04/2004WO2004094976A1 Apparatus to measure differential pressure with settable pressure reference
11/04/2004WO2004094962A1 Method and device for detecting current velocity
11/04/2004WO2004094961A1 Fluid flow measurement using optical fibres
11/04/2004WO2004094960A2 Ultrasonic apparatus and method for measuring the concentration and flow rate of gas
11/04/2004WO2004081500A3 Flowmeter with multisensors
11/04/2004WO2004046660A3 An apparatus and method for providing a flow measurement compensated for entrained gas
11/04/2004WO2004009152A3 Infusion pump and method for use
11/04/2004US20040220484 Method of measuring transcutaneous access blood flow
11/04/2004US20040217871 Ammonia flow alarm and method therefor
11/04/2004US20040216532 Vortex flow sensor
11/04/2004US20040216509 Flowmeter proving device and method
11/04/2004DE20309788U1 Durchflussmesser nach dem Vortex-Prinzip Flow meter according to the vortex principle
11/04/2004DE202004010505U1 Fluid flow meter, for a water pipe, has a platform at the outer side of the pipe at a venturi section for a cover as a circuit board with two pressure sensors flanking the narrowed neck section of the pipe
11/04/2004DE10317166A1 Gaszähleranordnung mit verbesserter Strömungsgeometrie Gas meter assembly with improved flow geometry
11/04/2004CA2776083A1 Ultrasonic apparatus and method for measuring the concentration and flow rate of gas
11/04/2004CA2520563A1 Ultrasonic apparatus and method for measuring the concentration and flow rate of gas
11/04/2004CA2484338A1 Apparatus to measure differential pressure with settable pressure reference
11/03/2004EP1473612A1 Flow regulating valve, flow rate measuring device, flow control device, and flow rate measuring method
11/03/2004EP1472509A1 Method and apparatus for determining liquid flow rate
11/03/2004CN2653452Y Quality flow meter
11/03/2004CN2653451Y Remote transmission water meter with leaking warning function
11/03/2004CN1543594A Low power regulator system and method
11/03/2004CN1543565A Fluid dispensing valve and method of use
11/03/2004CN1543564A Multiphase mass flow meter with variable venturi nozzle
11/03/2004CN1543563A Measuring system with ratiometric frequency output
11/03/2004CN1542402A Liquid flow proximity sensor for use in immersion lithography
11/03/2004CN1174223C Flow gauge with integrated filter
11/02/2004US6813570 Optimized convection based mass airflow sensor circuit
11/02/2004US6811981 Release of intracellular material
11/02/2004US6810859 Control system of internal combustion engine with output correcting means of thermal type air flow sensor
11/02/2004US6810730 Device for measuring air flow, comprising a device for separating foreign particles
11/02/2004US6810725 Exhaust gas recirculation measurement device
11/02/2004US6810719 Multiphase flow measurement system
11/02/2004CA2375950C Air flow detection apparatus
10/2004
10/28/2004WO2004092689A1 Device for determining at least one parameter of a medium flowing in a pipe
10/28/2004WO2004092688A1 Thermal type mass flow rate sensor made of corrosion resistant metal, and fluid supply equipment using the same
10/28/2004WO2004092687A1 Differential pressure means for a gas meter arrangement, comprising an improved flow geometry
10/28/2004WO2004092685A2 Method for operating a magnetically-inductive flowmeter
10/28/2004WO2004092680A2 Flowmeter zeroing techniques
10/28/2004WO2004092562A1 Air intake device for internal combustion engine
10/28/2004WO2004079306A9 An apparatus having a multi-band sensor assembly for measuring a parameter of a fluid flow flowing within a pipe
10/28/2004WO2004065914A9 Measurement of entrained and dissolved gases in process flow lines
10/28/2004WO2004065912A9 Apparatus and method for measuring unsteady pressures within a large diameter pipe
10/28/2004WO2004053428A3 Process meter
10/28/2004WO2004044532A3 An apparatus having an array of piezoelectric film sensors for measuring parameters of a process flow within a pipe
10/28/2004US20040215067 Flow sensor device for endoscopic third ventriculostomy
10/28/2004US20040211263 Method and device for continuous measuring of dynamic fluid consumption, including pressure regulator
10/28/2004US20040211254 Flow-sensing device and method for fabrication
10/28/2004US20040211253 Thermal type flow measuring device
10/28/2004DE19655043B4 Measurement sensor for measuring flow speeds of liquids and gases
10/28/2004DE10316342A1 Mass flow, especially air mass flow, measurement device for a combustion engine, has a separate measurement channel which has an angled inlet relative to the main flow direction
10/27/2004EP1469716A2 Free-flow fluid measurement meter
10/27/2004CN2651717Y Flowmeter
10/27/2004CN2651716Y Sleeving average dynamic pressure measuring apparatus
10/27/2004CN2651715Y Multifunctional vortex street flowmeter sensor
10/27/2004CN2651714Y Pocket oil filling monitor
10/27/2004CN1541327A Measuring head for ultrasonic flow meter
10/27/2004CN1173156C Method and for coriolis flowmeter having accuracy enhancing balance bar and device thereof
10/26/2004US6810345 Gas flow meter
10/26/2004US6810308 Apparatus and method for mass flow controller with network access to diagnostics
10/26/2004US6809821 Optical-reflectance-based mass-flow sensor
10/26/2004US6807868 Coriolis mass flow meter
10/26/2004US6807867 Magnetoinductive flowmeter and magnetoinductive flow-measuring process
10/26/2004US6807866 Transducer of the vibration type, such as an electromechanical transducer of the coriollis type
10/21/2004WO2004090478A1 Gas-meter provided with a fire-resistant housing
10/21/2004WO2004090477A1 Device for measuring the flow velocity of a mass flow
10/21/2004WO2004090476A1 Flow rate-measuring device
10/21/2004WO2004090475A2 Magnetic flow transducer and flow meter incorporating the same
10/21/2004WO2003076877A3 Device for measuring the quantity of a fluid
10/21/2004US20040210410 Gas flow meter
10/21/2004US20040210404 Apparatus and method of measuring gas volume fraction of a fluid flowing within a pipe
10/21/2004US20040207409 High-precision measuring method and apparatus
10/21/2004US20040206189 Correcting for two-phase flow in a digital flowmeter
10/21/2004US20040206175 Water meter with a measuring insert, sealed towards the outside
10/21/2004US20040206172 In-vehicle electronic device, thermal flowmeter and electronic circuit board
10/21/2004DE202004012563U1 Sensor e.g. for collection of differential pressures in air conditioning unit, has two withdrawal openings arranged one behind other in direction of flow and evaluation device is connected
10/21/2004DE10316450A1 Airflow measurement system in intake manifold of engine, locates component with trailing windshield or baffle downstream of opening
10/21/2004DE10314916A1 Vorrichtung zur Bestimmung und/oder Überwachung des Volumen- und/oder Massenstroms eines Mediums Device for determining and / or monitoring the volume flow and / or mass flow of a medium
10/21/2004DE10314024A1 Apparatus for determining the quantity of fluid flow through a tubular conduit using signals from a differential pressure converter and a volume counter
10/20/2004EP1469712A2 In-vehicle electronic device, thermal flowmeter and electronic circuit board
10/20/2004EP1469294A1 Device for detecting leakage of liquiid in tank
10/20/2004EP1468256A1 Fluid dispensing valve and method of use
10/20/2004EP1468255A1 Method and device for monitoring a mass flow in a pneumatic pipeline
10/20/2004EP1467946A1 "low power silicon thermal sensors and microfluidic devices based on the use of porous silicon sealed air cavity technology or microchannel technology"
10/20/2004CN2650073Y Two-functional supersonic flowmeter