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)
04/1993
04/29/1993DE4135071A1 Mass-flow measuring appts. utilising impingement plate, for powder or granules - comprises pressure vessel, gas supply connection, pneumatic bearing and gauge for determn. of differential inner and outer vessel pressure, for low viscosities
04/28/1993EP0538930A1 Apparatus for measuring the speed of a flowable medium
04/28/1993EP0198920B1 Flow measuring apparatus with analog, essentially linear output
04/28/1993CN2131092Y Gas flowmeter
04/27/1993US5206700 Methods and apparatus for retroreflective surface inspection and distortion measurement
04/27/1993US5205487 Irrigation control device
04/27/1993US5205170 Mass flow sensor
04/27/1993CA1316713C Vortex generator-sensor
04/27/1993CA1316712C Vortex flowmeter
04/27/1993CA1316709C Electronic display flow meter
04/27/1993CA1316708C Encapsulated electromagnetic flowmeter
04/26/1993CA2079650A1 Apparatus for measuring the speed of a fluid
04/21/1993EP0537766A2 Device for measuring the mass flow rate following the Coriolis principle
04/21/1993EP0537765A2 Method and device for the determination of the mass flow rate following the Coriolis principle
04/21/1993EP0537735A2 Method and apparatus for measuring flow by using phase advance
04/21/1993EP0537466A1 Grain flow measuring device, especially for combine harvesters
04/20/1993US5203205 Freezing agent consumption measurement system
04/15/1993WO1993007450A1 Noise rejecting vortex flowmeter
04/15/1993DE4133819A1 Trimming electrical potentiometer used in throttle position control - applying laser to adjust value at specific positions of sliding tap to give required characteristic
04/15/1993DE4133542A1 Stationary measurement device for monitoring internal combustion engine fuel consumption - has vertical measurement tube with e.g. differential pressure transducer at lower end
04/14/1993EP0536880A1 Resistor element having lead wire consisting of wire rod and covering alloy layer
04/14/1993EP0536388A1 Suspended looped conduit mass flowmeter
04/14/1993EP0536313A1 Improved flow measurement system
04/14/1993EP0536243A1 Thin-film airflow sensor with additional heating element
04/14/1993EP0390835B1 A method for recording multi-phase flows through a transport system
04/14/1993CN1071008A On-line changeable fluid meter
04/13/1993US5201581 Method and apparatus for measuring mass flow and energy content using a linear flow meter
04/13/1993US5201223 Method of sensing fluid flow and level employing a heated extended resistance temperature sensor
04/13/1993US5201221 Elongated silicon members with silicon dioxide overcoating
04/13/1993US5201216 Air flow meter for internal combustion engines and a manufacturing method thereof
04/07/1993EP0536080A2 Method for measuring liquid flow
04/07/1993EP0535257A1 Flowmeter for measuring the flowrate of a liquid with a free surface along a duct
04/07/1993EP0402460B1 Electromagnetic flow meter
04/06/1993US5199307 Automatic power generation type flowmeter
04/06/1993US5199306 Method and apparatus for metering flow in closed conduits that surcharge
04/06/1993US5199300 Device for controlling resistor temperature
04/01/1993WO1993006441A1 Measurement of gas flows with enhanced accuracy
04/01/1993WO1993006440A1 Measurement system
04/01/1993WO1993006439A1 Liquid flow meter
04/01/1993WO1993006438A1 Liquid metering
04/01/1993WO1993005710A1 Thermistor airflow sensor assembly
04/01/1993DE4227431A1 Determining air mass taken into each cylinder of vehicle IC engine - using crankshaft markings to define suction phase of cylinders and integrating value of volume flow for each cylinder
03/1993
03/31/1993WO1993007100A1 Use and selection of coating and surface materials to control surface fouling and corrosion using zeta potential measurement
03/31/1993EP0534003A1 Probe for a magnetic inductive flow meter
03/31/1993EP0533831A1 Apparatus for testing leak detectors
03/31/1993EP0406244B1 A flowmeter
03/31/1993CN1070473A Electronic fluid flow meter
03/31/1993CA2097295A1 Use and selection of coating and surface materials to control surface fouling and corrosion using zeta potential measurement
03/30/1993US5198989 Sewer flow measurement control system
03/30/1993US5198197 Apparatus and method for supercritical fluid extraction
03/30/1993US5197862 Method and device for monitoring radon mitigation system
03/30/1993US5197477 Ultrasonic doppler flow measurement system with tissue motion discrimination
03/30/1993US5197337 Low force flowmeter pick-off
03/30/1993US5197336 Karman vortex flow meter
03/30/1993CA1315130C Apparatus and technique for metering liquid flow
03/25/1993DE4131721A1 Vol. flow measuring device esp. for breathing apparatus - has light source, optical fibre clamped at one end in flow channel, with stop between vibrating free end and light receiver
03/25/1993DE4131720A1 Measuring vol. flow of gaseous medium, esp. in breathing appts. - determining frequency of oscillation of optical fibre clamped at one end in flow channel
03/24/1993EP0532938A1 Device for measuring flow of a liquid containing electrical charges
03/24/1993CN2128731Y Parabolic weir flowmeter
03/23/1993US5195986 Integral intravenous fluid delivery device
03/23/1993US5195456 Milking apparatus
03/23/1993US5195380 Petroleum stream analyzing means and method
03/23/1993US5195367 Anemometer
03/23/1993CA1314733C Turbine flowmeter
03/23/1993CA1314732C Device for measuring water flow rate in plant stem
03/23/1993CA1314729C Liquid flow meter
03/18/1993WO1993005368A1 Electromagnetic flowmeter for water conveyance in semifull state
03/18/1993WO1993005367A1 Electromagnetic flowmeter for water conveyance in semifull state
03/18/1993WO1993003332A3 Magnetic flowmeter with improved accuracy
03/18/1993DE4130512A1 Signal gain and offset compensation appts. for electrical measurement signals, esp. for engine induction - uses operational amplifier with variable reference voltage and variable resistance to earth
03/18/1993DE4130197A1 Liquid flow measurement device with mechanically resonant structure - contains flexible element mounted directly in flow with thin, magnetostrictive film device for measuring permeability changes.
03/17/1993CN2128375Y Fixed blast volume measurer
03/16/1993US5194809 Determining time rate of fluid change taking place in a test mass
03/16/1993US5193990 Fluid management system with auxiliary dispensing chamber
03/16/1993US5193406 On-stream method for detecting erosion or plugging for manifolded feed nozzle systems
03/16/1993US5193400 For measuring flow of fluid media
03/16/1993US5193399 Vortex flowmeter
03/16/1993US5193388 Method and apparatus for determining the flow rate of a flowing fluid mass
03/16/1993CA1314413C Fluid flow detector
03/11/1993DE4139631C1 Measuring element for intake air flowmeter of IC engine - has slot in substrate board separating film resistors
03/11/1993CA2077807A1 Device to measure the flowrate in a partially full line
03/10/1993EP0430979B1 Device for measuring a flowing air volume
03/09/1993US5191802 Device for measuring mass flow
03/09/1993US5191793 Fluid mass flow meter device with reduced attitude sensitivity
03/09/1993US5191789 Method and system for detecting intake air flow rate in internal combustion engine coupled with supercharger
03/09/1993CA1314308C Protective circuit for the induction coil of a magnetically inductive flow meter
03/04/1993WO1993004344A1 Sight flow apparatus with cartridge
03/04/1993WO1993004342A1 Fluid flow measuring device
03/04/1993DE4143361A1 Mass throughflow appts.
03/03/1993EP0529053A1 Delivery of aerosol medications for inspiration
03/03/1993EP0528947A1 Valve system with removable fluid interface
03/02/1993US5190726 Apparatus for measuring the flow rate of water vapor in a process gas including steam
03/02/1993US5190103 Injecting surfactant into fluid to form pseudo-single phase fluid
03/02/1993US5190075 Viscosity-insensitive mechanical fluid flow regulator
03/02/1993US5190048 Thermistor airflow sensor assembly
03/02/1993US5189918 Fluid flow rate measurement device
02/1993
02/25/1993DE4203649C1 Injecting fuel according to working parameter of diesel engine - using air flow sensor upstream of EM or piezo valve
02/25/1993DE4127695A1 Inductive flowmeter with tube contg. electrodes in magnetic field - has additional channel in base with auxiliary electrodes for measuring low flow rates at low liq. levels
02/24/1993EP0528437A1 Method and device for fluid flow monitoring in a conduit, especially adapted for infusionsystems
02/24/1993EP0528251A2 Method of making a semiconductor type gas flow sensor