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)
06/1991
06/26/1991EP0434003A2 Automated powered flowmeter valves and control thereof
06/26/1991EP0433411A1 Air-flow meter.
06/26/1991EP0298107A4 Method of making and filling bags
06/26/1991CN1052550A Aerodynamic probe internal constructions
06/21/1991CA2032564A1 Peripheral arterial monitoring instruments
06/20/1991DE3941933A1 Ultraschallwandler fuer luftstroemungsmessung insbesondere zur luftmengenmessung bei verbrennungsmotoren Ultrasonic transducer for luftstroemungsmessung particular for air flow measurement for internal combustion engines
06/20/1991DE3941634A1 Schallisolierte halterung eines ultraschallwandlers Soundproofed holder of an ultrasonic converter
06/20/1991DE3941546A1 Ultraschall-gas-/fluessigkeits-durchflussmesser Ultrasonic gas / liquid flow meters
06/20/1991DE3941545A1 Ultraschall-gas-/fluessigkeits-durchflussmesser Ultrasonic gas / liquid flow meters
06/20/1991DE3941544A1 Ultraschall-durchflussmesser Ultrasonic flow meters
06/19/1991EP0432627A1 Mass flow measuring device
06/19/1991CN2079283U Continuous measuring device for oilfield single well day output
06/19/1991CN1012920B Flow indicating device and method for changing its measuring range
06/19/1991CA2027137A1 Liquid flow metering
06/18/1991US5025160 Measurement of flow velocity and mass flowrate
06/18/1991US5024105 Viscosity-insensitive variable-area flowmeter
06/18/1991US5024104 Combined output and drive circuit for a mass flow transducer
06/18/1991US5024084 Flow meter for liquid doctored through Fourdrinier fabric at wet end of Fourdrinier paper machine
06/18/1991US5024083 Terminal flow sensor
06/18/1991CA1285061C Method and appliance for evaluating the sound emission property of hollow components and their use particularly in the motor-vehicle industry
06/16/1991WO1991009281A1 Ultrasonic flow meter
06/16/1991WO1991009280A1 Ultrasonic gas/liquid flow meter
06/16/1991WO1991009279A1 Soundproofed holding device for an ultrasonic transducer
06/16/1991WO1991009274A1 Aerodynamic probe internal constructions
06/16/1991CA2072110A1 Ultrasonic gas/liquid flow meter
06/16/1991CA2071828A1 Soundproofed holding device for an ultrasonic transducer
06/16/1991CA2069110A1 Aerodynamic probe internal constructions
06/15/1991CA2032189A1 Method and system for measurement of fluid flow in a drilling rig return line
06/13/1991WO1991008446A1 Convective acceleration flowmeter
06/13/1991WO1991008445A1 Flowmetering apparatus
06/13/1991WO1991008444A1 Measuring flow characteristics of fluid streams
06/13/1991CA2069624A1 Flowmetering apparatus
06/12/1991EP0431525A2 Balance for the continuous weighing and for the determination of the flow rate of bulk foodstuffs treated in a grain mill
06/12/1991EP0431345A2 Probe for measuring pressure of a fluid flowing in a pipe
06/12/1991EP0431132A1 Improved stability coriolis mass flow meter
06/12/1991EP0430979A1 Device for measuring a flowing air volume.
06/12/1991CA2031944A1 Pulse echo technique for detecting fluid flow
06/11/1991US5023055 Different materials in supply chamber combine to form aerosol to detect flow
06/11/1991US5022557 Computerized beverage dispensing system
06/11/1991US5022274 High temperature particle velocity meter and associated method
06/11/1991US5022270 Extended measurement capability transmitter having shared overpressure protection means
06/11/1991US5022269 Resonance frequency position sensor
06/11/1991US5022257 Impulse sensor with amplitude calibration means
06/11/1991CA1284732C Apparatus and method for continuously measuring mass flow
06/07/1991WO1991008447A1 A flow tube drive circuit having a bursty output for use in a coriolis meter
06/06/1991WO1991008448A1 Electromagnetic driver and sensor
06/06/1991DE3939646A1 Filter tube gas throughput measuring appts. for dust filtration system - has measurement connector, pref. with Venturi measurement insert
06/06/1991DE3939573A1 Sensor for measuring forces and derivable physical parameters - has light source connected to clamped end of elastically deflectable light conducting body, with position detector at other end
06/05/1991EP0430015A1 Flowmeter
06/05/1991EP0329728A4 Convective attenuation flowmeter
06/05/1991EP0320508B1 Improved parallel path coriolis mass flow meter
06/05/1991CN1012754B Hot wire air flowmeter
06/04/1991US5020380 Mass flow operating by the coriolis principle
06/04/1991US5020375 Measuring fluid flow
06/04/1991US5020374 Acoustic emission
06/04/1991US5020373 Composite flow meter
06/04/1991US5020365 Flow rate meter
06/04/1991US5020214 Method of manufacturing a hot wire air flow meter
05/1991
05/30/1991WO1991007642A1 Velocity measurement system
05/29/1991WO1991009283A2 Linearization of a sensing bridge circuit output
05/29/1991CA2066028A1 Linearization of a sensing bridge circuit output
05/28/1991US5018391 Inductive flow meter
05/28/1991US5018385 I.C. engine airflow meter having speed-based automatic gain control
05/25/1991CA2030298A1 Convective acceleration flowmeter
05/22/1991EP0428422A2 Method and apparatus for measurements related to fluid flow in a borehole
05/22/1991EP0428364A1 Flowmeter
05/22/1991CN2077540U In-line quick mounting and maintenance of turbine flow sensor
05/16/1991WO1991006832A1 A gas flow measuring system
05/16/1991WO1991006831A1 Gas flow meter housing
05/16/1991WO1991006830A1 Variable area obstruction gas flow meter
05/16/1991WO1991004462A3 Liquid counter
05/16/1991DE3940280A1 Flowing medium throughout determining appts. - contains dynamic pressure body carrying magnets and movable w.r.t. soft magnetic core carrying stimulation and secondary coils
05/15/1991EP0427102A1 Flow meter for measuring the flow rate in a conduit
05/15/1991EP0427018A2 Measuring device for measuring the speed of a fluid
05/15/1991CN2077117U Automobile oil consumption meter
05/15/1991CN1051423A Uniform-velocity pipe flowmeter for pipe with rectangular cross-section
05/14/1991US5016187 Linearized turbine flow meter for fuel dispensers
05/14/1991US5014559 Rotameter with read-out device
05/14/1991US5014552 Flow meter
05/14/1991US5014550 Method of processing mass air sensor signals
05/14/1991CA1284038C Fluid flow sensor
05/08/1991EP0426309A2 Measurement system
05/08/1991EP0426266A1 Syrup dispensing system
05/08/1991CN2076668U Rectangular cross-section tube uniform flow tube flowmeter
05/07/1991US5013928 Optical equipment of fiber laser Doppler velocimeter
05/07/1991US5012955 Syrup dispensing system
05/07/1991CA1283834C Water trap valve for fail safe operation of an air inleakage monitoring system in a steam turbine
05/02/1991WO1991005986A1 Volume and flow measuring apparatus
05/02/1991EP0425120A2 Averaging pitot probe
05/02/1991EP0424828A1 Mass flowmeter for two-phase currents liquid/gas
05/02/1991EP0424503A1 Multiphase process mixing and measuring system
05/01/1991CN1012532B Measurement of flow rate of powder from a hopper
04/1991
04/30/1991US5012449 Sonic flow meter
04/30/1991US5011279 Fiber-optical sensor
04/30/1991US5010771 Fast response, high sensitivity manometric wind sensor
04/30/1991CA2012846A1 Syrup dispensing system
04/30/1991CA1283560C Air pressure measurement element and system incorporating same
04/30/1991CA1283559C Methods for metering two-phase flow
04/25/1991DE3934263A1 Measuring mass of air sucked into combustion chamber of IC engine - measuring change in air mass in defined vol in defined period and subtracting from flow into induction system during that period
04/23/1991US5009248 Flowmeter