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)
10/1990
10/18/1990DE4008577A1 Probe for local flow rate measurement - in liq. metal, esp. gas-stirred melts or immiscible melts
10/17/1990EP0392294A1 Fluid flowmeter for measuring ultrasound transit times
10/17/1990EP0392272A1 Measuring and/or controlling device for fluid flow and/or quantities of heat
10/17/1990EP0392271A1 Measuring device for fluid flow and/or quantities of heat
10/17/1990EP0392072A1 Fluid mass flow control system
10/17/1990EP0391954A1 Fluidic flowmeter.
10/17/1990CN2064045U Wedge orifice set
10/17/1990CN2064044U Far distance consumption meter of water meter
10/17/1990CN1046221A Fluid flow volumetric determination apparatus and method
10/17/1990CA2013586A1 Method and apparatus for measuring multi-phase flows, in particular in hydrocarbon wells
10/16/1990US4962671 Single vibrating tube transducers
10/16/1990US4962666 Mass flowmeter apparatus
10/11/1990DE3911599A1 Resistance arrangement for a hot-film anemometer
10/11/1990DE3911408A1 Measuring tube for ultrasonic flow measurements
10/10/1990EP0391806A1 Loading station of petroleum products for vehicles
10/10/1990EP0390835A1 A method for recording multi-phase flows through a transport system.
10/10/1990EP0233906B1 Magnetic resonance imaging of high velocity flows
10/09/1990US4962370 Off-center cap-level magnetic float sewer alarm
10/09/1990US4961349 Flow meter
10/09/1990US4961348 Flowmeter fluid composition correction
10/09/1990US4961344 Gas flow measuring apparatus
10/04/1990WO1990011503A1 Differential pressure gauge
10/04/1990WO1990011494A1 Process and device for real-time spectral analysis of complex unsteady signals
10/04/1990WO1990011493A1 Viscosity-insensitive mechanical fluid flowmeters and flow regulators
10/04/1990WO1990011466A1 Valve and arrangement for fire suppression water sprinkler system
10/04/1990DE4009833A1 Air measurement arrangement for IC engine induction air quantity
10/04/1990DE3910676A1 Method and equipment for operating an air mass flowmeter
10/03/1990EP0389771A2 Optical equipment of fiber laser Doppler velocimeter
10/03/1990EP0389725A2 Passive flowmeter for determining the flow rate and the direction of flow in a well
10/03/1990EP0389709A1 Apparatus for measuring and controlling fluid flow across a boundary
10/02/1990US4959990 Combined mass flow/pitot tube meter
09/1990
09/27/1990DE3909180A1 Device for determining mass flow
09/27/1990CA2010878A1 Apparatus for measuring and controlling fluid flow across a boundary
09/26/1990EP0388777A2 Sensor element to measure the temperature of flowing gases
09/26/1990EP0388736A1 Impeller flow meter
09/26/1990EP0332690A4 Enhanced pressure measurement flow control system
09/26/1990CN2062827U Receiver for ultrasonic flowmeter
09/26/1990CN2062826U Fluon anti-dray sleeve for flowmeter
09/25/1990US4958524 Flow meter
09/25/1990US4958523 Apparatus for measuring the flow rate of electrically conductive liquids
09/25/1990US4958516 Method and means for determining air mass in a crankcase scavenged two-stroke engine
09/20/1990WO1990010856A1 Supply valve and arrangement for fire suppression water sprinkler system
09/20/1990WO1990010847A1 Medium consumption turbine-type converter
09/20/1990DE4008037A1 Metering out particular adhesives
09/20/1990DE3908754A1 Load-bearing member for a floor or similar surface
09/19/1990EP0388392A2 Method and device for continuous removal of a part of a gasstream
09/19/1990EP0387728A1 Apparatus for monitoring the dosing of a cyanoacrylate or an anaerobe adhesive
09/19/1990EP0387282A1 A differential pressure transmitter, a square root extractor device therefor, and methods of making the same
09/19/1990CN2062435U Industrial waste water flowmeter
09/18/1990US4958070 Digital electronics for controlling a fiber optic shedding flowmeter
09/18/1990US4957007 Bi-directional pressure sensing probe
09/18/1990US4957006 Multiple orifice flow measuring device
09/18/1990US4957005 Coriolis-type flowmeter
09/18/1990CA1274101A1 Determination of steam quality in thermal injection wells
09/18/1990CA1274100A1 Method and apparatus for metering flowable particulates
09/12/1990EP0387025A1 Temperature compensating circuit
09/12/1990EP0386966A2 A hot-wire air flow meter and internal combustion engine provided with the same
09/12/1990EP0386670A2 Thermal transit time flow measurement system
09/12/1990EP0386481A1 Method and device for flow measurement
09/12/1990EP0364508A4 Vortex flowmeter
09/12/1990EP0344294A4 Vortex generator-sensor
09/12/1990EP0305359B1 Process and circuit for measuring the air flow in the inlet manifold of an internal combustion engine
09/12/1990CN1009579B Pn conjunction senser relative with the temperature changing
09/11/1990US4955270 For measuring flow rate of a stream of granular material
09/11/1990US4955239 Apparatus for electrically interconnecting vibrating structures
09/11/1990US4955230 Elimination of turbulence for silicon micromachined airflow sensor
09/11/1990CA1273824A1 Flowmeter
09/11/1990CA1273817A1 Variable pulse rate led electronics for a fiber optic vortex shedding flowmeter
09/11/1990CA1273813A1 Apparatus and method for calibrating a sensor
09/07/1990WO1990010197A1 Sensor for determining the volume of liquid or gaseous media
09/07/1990WO1990007694A3 Electromagnetic flow meter
09/06/1990DE3906432A1 Turbine meter
09/05/1990EP0385539A2 A milking plant
09/05/1990EP0307463A4 Impulse sensor with mechanical preamplification and noise cancellation
09/05/1990EP0289566A4 Vortex shedding flowmeter
09/05/1990CN1009488B Automatic open-canal water-measuring instrument
09/04/1990US4953409 Noise and offset voltage-compensated electromagnetic flowmeter
09/04/1990US4953408 Capacitive type electromagnetic flowmeter
09/04/1990US4953407 Method for measuring the flow rate of a gas
09/04/1990US4953388 Air gauge sensor
09/04/1990CA1273563A1 Method and device for detecting a fluid flow
09/04/1990CA1273533A1 Fluid flow indicator
08/1990
08/30/1990DE3905735A1 Method for evaluating an input signal
08/30/1990DE3905665A1 Arrangement for measuring mass flow
08/30/1990DE3905524A1 Element arrangement for calorimetric flow sensors
08/29/1990EP0155292B1 Light modulation sensor
08/29/1990CN1044978A Butterfly valve having function for measuring flow rate and method of measuring flow rate with butterfly valve
08/28/1990US4952904 Smooth metal oxide layer in between platinum layer and silicon nitride substrates: withstands annealing temperature
08/28/1990US4951700 Equipment for measuring the yield of oil wells
08/28/1990CA1273227A1 Slotted diaphragm semiconductor device
08/28/1990CA1273224A1 Panel surface flaw inspection
08/23/1990DE4003638A1 Flow rate monitor using electric temp. difference measurement - has hollow cylindrical measuring pin containing temp. measuring elements and electric heating element
08/22/1990EP0383585A1 Fluid flow volumetric determination apparatus and method
08/22/1990EP0382964A2 Butterfly valve having the function of measuring flow rate and method of measuring flow rate with a butterfly valve
08/22/1990EP0382819A1 Mass-volume flowmeter
08/22/1990EP0382818A1 A fluid flow meter.
08/21/1990US4951209 Induction volume sensing arrangement for internal combustion engine or the like
08/21/1990US4949755 Fluidic volumetric fluid flow meter
08/21/1990US4949583 Method of mass flow measurement by the coriolis principle and mass flow meter operating by the coriolis principle
08/21/1990US4949581 Extended measurement capability transmitter having shared overpressure protection means