Patents
Sitemap › G01 - Measuring; Testing › G01F - Measuring volume, volume flow, mass flow, or liquid level; Metering by volume › 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
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)
12/1991
12/26/1991WO1991019967A1 Apparatus for testing leak detectors
12/26/1991WO1991019959A1 Thermal mass flow sensor
12/25/1991CN2091449U Weir type open canal sewage fluid meter
12/25/1991CN1057333A Improved stability coriolis mass flow meter
12/25/1991CN1057332A Shunt type differential flow converter
12/24/1991US5074661 Methods and apparatus for retroreflective surface inspection and distortion measurement
12/24/1991US5074147 Thermo-sensitive sensor
12/24/1991CA1293568C Electronic volume correctors
12/24/1991CA1293553C Feedback fuel metering control system
12/24/1991CA1293392C Single tube parallel flow coriolis mass flow sensor
12/19/1991DE4018776A1 IC engine air intake flow determn. and correction - comparing ideal reference mass flow with operation-dependent flow in normal condition of engine
12/19/1991DE4018775A1 IC engine load determn. - by air flow comparison w.r.t. reference quantity established for conditions, giving ratio of actual and possible individual cylinder flows
12/18/1991EP0461281A1 Device for detecting air flow through a passageway
12/18/1991CN2090973U Mechanical switch for measuring mass flow with high-precise identification feature
12/18/1991CN2090972U Ultrasonic transducer for ultrasonic doppler flowmeter
12/18/1991CN2090971U 塑料圆锥管转子流量计 Plastic conical tube rotameter
12/18/1991CN2090970U Outdoor display for natural gas (coal gas)
12/17/1991US5073208 Bending tube, stress relieving
12/17/1991US5072614 Temperature compensating circuit
12/12/1991WO1991019170A1 Flow sensor and control system
12/12/1991WO1991016603A3 Method and apparatus for continuously measuring volumetric flow
12/12/1991DE4018254A1 Flow attenuator for measuring flow of conducting liquid - has non-return valve, upstream and downstream electrodes, and detector circuit
12/12/1991DE4017877A1 Flow measurement sensor for wall mounted or in-flow use - has functional elements on tubular body mounted in measurement pin or over measurement body
12/11/1991EP0461057A1 Process for measuring the rate of flow and apparatus for flow regulation purposes of a thermal regulation fluid in a conduit
12/11/1991EP0431132A4 Improved stability coriolis mass flow meter
12/11/1991CN2090518U Stress type vortex street flow transmitter
12/11/1991CN1056931A Magnetic floating-type turbo-conveyer for measuring flow
12/05/1991DE4017698A1 Sensor mfr. using thick film technique - to bond sensor and circuit substrates before sepn. into individual sensors
12/05/1991CA2037203A1 Self-charging air cleaner maintenance detector
12/04/1991EP0459468A2 Hot-wire type flowmeter
12/04/1991EP0458998A1 Current convertor
12/04/1991CN2090048U Continuous measure device for single well day production of oil well
12/04/1991CN2090047U Solid liquid flow sensor
12/04/1991CN2090046U Non-pressure pipe sewage flowmeter
12/03/1991US5069252 Orifice system intermediate interface
12/03/1991US5069075 Mass flow meter working on the coriolis principle
12/03/1991US5069074 Apparatus and method for measuring the mass flow rate of material flowing through at least one vibrating conduit
12/03/1991US5069073 Apparatus for diffusing high pressure fluid flow
12/03/1991US5069067 Fluid flow meter
12/03/1991US5069066 Constant temperature anemometer
11/1991
11/28/1991WO1991018280A1 Tomographic monitoring of fluid flows
11/28/1991WO1991017780A1 Valve system with removable fluid interface
11/28/1991WO1991017709A1 Uro-flowmeter
11/28/1991DE4016907A1 Mass flow measurement arrangement for flowing medium - contains three section chamber with vibration generator(s) acting on central section, detector of coriolis forces or vibrations
11/28/1991DE4016378A1 Measurement weir system for continuous acquisition of data - representing overflow quantity and qualitative parameters using speed probes on moving weir plate
11/27/1991EP0458392A2 Device for measuring fluid velocity by the Doppler effect
11/27/1991EP0458081A2 Air flow meter
11/27/1991EP0457999A1 Sensor unit of an ultrasonic volume flowmeter
11/27/1991EP0445285A4 Vortex flowmeter with balanced vortex sensor
11/27/1991CN2089618U Material flow measuring device in gas or solid phase flow
11/27/1991CN2089617U Diving electromagntic flowmeter
11/26/1991US5068116 Method for beverage blending and proportioning
11/26/1991US5067466 System for measuring air flow rate for internal combustion engines
11/26/1991CA1292532C Optical displacement sensor
11/26/1991CA1292427C Method of locating hydrocarbon producing strata and the instrument therefor
11/21/1991EP0456801A1 Electromagnetic driver and sensor.
11/21/1991EP0456789A1 Convective acceleration flowmeter
11/20/1991CN2089163U Counter with accumulator function
11/19/1991US5065901 Apparatus for monitoring a flow of fluid through a filter medium
11/19/1991US5065632 Flow line weighing device
11/14/1991WO1991017412A1 Constant temperature anemometer
11/14/1991DE4114584A1 Monitoring rain water reservoirs, etc. - using data transfer in digital and-or analogue form to memory programmable data acquisition unit
11/14/1991DE4015107A1 Measurement nozzle for heating system throughput - has bores either side of aperture leading to differential press meter adaptor
11/12/1991US5064296 Integrated semiconductor circuit for thermal measurements
11/12/1991US5063962 Apparatus for the controlled ventilation of rooms
11/12/1991US5063787 Measuring the flow rate of a fluid
11/12/1991US5063786 Fluid flow meters
11/12/1991US5063776 Method and system for measurement of fluid flow in a drilling rig return line
11/12/1991CA1291883C Hot wire air flow meter
11/07/1991DE4016529C1 Flowmeter for open duct - has flow sensor movable across channel to supply computer with flow speeds measured at several points
11/06/1991EP0455291A1 Acid etch resistant coatings
11/06/1991CN2088236U Volumetric flow-meter
11/05/1991US5063352 Circuit arrangement with a flow probe operated in a bridge circuit
11/05/1991US5062446 Intelligent mass flow controller
11/05/1991US5062305 Method of making a measuring tube for an electromagnetic flow meter, and the measuring tube
11/05/1991US5062304 Urine collection monitor with temperature sensing
10/1991
10/31/1991WO1991016605A1 Process and device for measuring air flow
10/31/1991WO1991016604A1 Process for manufacturing micro-mechanical sensors
10/31/1991DE4013634A1 Magnetic inductive flow meter - has electrodes of insulating material made conductive by added graphite, chemically resistant
10/30/1991EP0454560A1 Wireline and coiled tubing retrievable choke for downhole flow measurement
10/30/1991EP0454230A2 Method and apparatus for determining the mass flow of pneumatically transported solids
10/30/1991EP0454191A1 Method and apparatus for determining air mass in a combustion chamber of a two-stroke engine
10/30/1991EP0453720A2 Mass flow sensor having wide dynamic range
10/30/1991CN2087773U Capacitive numeral metrical instrument
10/30/1991CN2087772U Solid-state differential pressure and pressure combined transmitter
10/30/1991CN1055816A Throttling calorimeter for two phase flow of damp steam
10/30/1991CN1055815A Flow measurement device for industrial pipeline gas
10/29/1991US5061350 Method for producing detecting element
10/29/1991US5060860 Paint conductivity measurement system
10/29/1991US5060655 Pneumotach
10/29/1991US5060523 Vibrating looped conduit mass flowmeter
10/29/1991US5060522 Mass-volume vortex flowmeter
10/29/1991US5060511 Intake air quantity measuring apparatus
10/29/1991CA1291571C2 Method and apparatus for calculating flow rates through a pumping station
10/24/1991DE4112601A1 Gas flow measurement arrangement, esp. for engine air induction system - has thermally sensitive thin film resistances on electrically insulating carrier in air flow
10/24/1991DE4012419A1 Two-phase mixt. vol flow measuring appts. - useful for measuring heat consumption of paper drying cylinder
10/23/1991EP0452531A1 Electric measuring device for determining the propagation time of an electrical signal
10/23/1991CN1055596A Multiple-prupose microwave duff flowmeter
10/22/1991US5059556 Overcoating with silicide
10/22/1991US5058437 Determining the quantity yield of a compressible fluid flowing through a pressure reducing valve
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