Patents
Patents for G01F 23 - Indicating or measuring liquid level, or level of fluent solid material, e.g. indicating in terms of volume, indicating by means of an alarm (31,056)
09/1998
09/23/1998EP0866322A1 Apparatus and method for sensing a full level condition for a large basket, receptacle or the like
09/23/1998EP0866321A2 Sensor arrangement
09/23/1998EP0746764A4 Ultrasonic transducer system with temporal crosstalk isolation
09/23/1998CN2292278Y Ultrasonic wave liquid level measurer
09/23/1998CN2292277Y Antiscale solid-core water level water temp. test bar
09/23/1998CN2292276Y Three-color interfacial meter
09/22/1998US5812168 Air purging of a pressure regulated free-ink ink-jet pen
09/22/1998US5811688 Open channel flowmeter utilizing surface velocity and lookdown level devices
09/22/1998US5811677 Material interface level sensing
09/22/1998US5809795 Fuzzy logic liquid level control
09/22/1998CA2149328C Radar distance measuring device
09/17/1998WO1998040700A1 Device for measuring hydraulic discharge volumes and leakages in a test piece
09/17/1998DE19802227A1 Immersion pump with lower and upper housing sections
09/17/1998DE19709738A1 Measuring system for level position of liquid in tank especially fuel tank for IC engines
09/17/1998CA2200104A1 Water alarm
09/16/1998EP0824671B1 Capacitive level sensor
09/16/1998EP0683887B1 Rejecting noise in magnetostrictive position detector by determining valid time range for propagation of reference sonic pulses
09/16/1998CN2291648Y Floating ball level controller
09/16/1998CN2291647Y Digital display fuel gauge for vehicles and ships
09/16/1998CN2291646Y Flushing monitor of water-level gauge for boiler
09/16/1998CN2291645Y Integrated infra-red electric liquid level probe
09/16/1998CN1193103A Passive liquid-level sensor
09/15/1998US5808195 Arrangement for determining liquid velocity versus depth utilizing historical data
09/15/1998US5808187 Fluid level indicator
09/15/1998US5807092 Method of and device for detecting the residual of gas quantity in a cassette-type gas cylinder
09/15/1998US5806363 Tank level gauge of driven sensor type
09/11/1998WO1998039623A1 Probe and sensor for liquids
09/10/1998DE19709422A1 Vorrichtung zur Messung von hydraulischen Durchflußmengen und Leckagen an einem Prüfling Device for measuring hydraulic flow rates and leakages in a test piece
09/09/1998EP0862745A1 Nuclear magnetic resonance level gauging device
09/09/1998CN2290842Y Code disk type magnetic float tank gage
09/09/1998CN2290841Y Auto-tracking content meter for liquid storage cylinder
09/09/1998CN2290840Y Material quantity measuring device in high temp and high pressure reaction still
09/09/1998CN2290839Y Tank gage having mobile electrical contact
09/09/1998CN2290838Y One-side plate glass water level meter
09/09/1998CN1192530A Method for measuring water level of iced water body
09/08/1998US5805110 Method for sensing characteristics of objects within a field
09/08/1998US5804831 Liquid level sensor for use in a hot, pressurized liquid
09/08/1998US5802910 Measuring system for liquid volumes and liquid levels of any type
09/08/1998US5802728 Liquid level and angle detector
09/03/1998WO1998038528A1 Condensate free ultrasonic transmitter
09/03/1998WO1998038059A1 Motor vehicle display system
09/03/1998CA2282587A1 Condensate free ultrasonic transmitter
09/02/1998CN2290037Y Automatic display metering device for high level liquid tank
09/02/1998CN2290036Y Liquid level measuring instrument
09/02/1998CN2290035Y Prism liquid level gauge glass
09/02/1998CN1191952A Corrosion resistant method for water-lever measuring device and water-lever regulator of boiler
09/01/1998US5800262 Acoustic volume and torque weight sensor
09/01/1998US5799534 Procedure for measuring the level of a liquid in a tank according to the radar principle
08/1998
08/27/1998DE19741067A1 Fill level detection arrangement
08/27/1998DE19707139A1 Opto-electronic gas production detection and measurement arrangement
08/27/1998DE19707084A1 System for controlled filling of small open=topped container with liquid
08/26/1998EP0860284A2 Liquid level detection system, liquid-jet printing apparatus and liquid container
08/26/1998EP0859966A2 Method for fixing the position, with respect to the direction and range, of a target with an ultrasonic transducer
08/26/1998EP0859945A2 Ultrasonic monitoring technique for containers and apparatus to carry it out
08/26/1998EP0645017B1 Liquid dispensing system
08/26/1998CN2289225Y Magnetic tracking colour board liquid level meter
08/26/1998CN2289224Y Infrared level indicator
08/26/1998CN2289223Y Liquid level-limited optical fibre detector
08/26/1998CN2289222Y Contactless liquid level transmitter
08/26/1998CN2289221Y Capacitive continuous detecting bin level indicator
08/26/1998CN2289220Y Water level alarm device
08/26/1998CN2289219Y 液位探测仪 Level Detector
08/26/1998CN2289218Y Three-colour tubular liquid level indicator
08/26/1998CN2289217Y Integral ultrasonic level meter
08/25/1998US5798698 Method of monitoring the level of a liquid in a container
08/20/1998WO1998036490A1 Microwave pulse generator and pulse-echo ranging system
08/20/1998WO1998036250A1 Dosing system for the dosing of liquids, and method and use of the system
08/20/1998DE19704683A1 Oil level sensor e.g. for motor vehicle
08/20/1998CA2280763A1 Microwave pulse generator and pulse-echo ranging system
08/19/1998EP0859223A1 Metal level detection method and apparatus
08/19/1998EP0858349A1 Optical dose measurements in syringes
08/19/1998EP0767897A4 Thickener mud gauge
08/19/1998CN2288426Y 液体液位显示装置 Liquid level display device
08/19/1998CN2288425Y Ultrasonic liquid level measurer for oil tank
08/19/1998CN2288424Y Infra-red detector for material
08/19/1998CN2288423Y Electronic fluid level indicator
08/13/1998WO1998025109A3 Material level sensing
08/13/1998CA2226313A1 Metal level detection method and apparatus
08/12/1998EP0857954A1 Cord level detector
08/12/1998EP0857295A1 Level sensor and washer unit
08/12/1998EP0830575A4 Liquid level gauge assembly including potentiometer with conductive polymeric element
08/11/1998US5793705 Ultrasonic liquid level gauge for tanks subject to movement and vibration
08/11/1998US5793294 Sump alarm
08/11/1998US5793200 Position responsive magnetic sensing elements for sensing the position of a member at a remote site
08/11/1998US5792117 Apparatus for optically determining and electronically recording injection doses in syringes
08/11/1998US5791187 Level measurement method using measurements of water column pressure therefor
08/11/1998CA2197248A1 Float device
08/06/1998WO1998024013A3 Material interface level sensing
08/06/1998DE19703378A1 Measurement probe
08/05/1998EP0856725A1 Method and device for determining the quantity of product present in a reservoir, a product reservoir and a device for processing electrical signals intended for such a determination device
08/05/1998EP0856724A1 Method and device for determining the quantity of product present in a reservoir, a product resevoir and a device for processing electrical signals intended for such a determination device
08/05/1998EP0856722A1 Length measuring apparatus employing magnetostrictive delay line
08/05/1998EP0856150A1 Method and device for liquid leakage indication
08/05/1998CN2287297Y Universal magnet buoy
08/04/1998USH1743 Inventory management method and apparatus
08/04/1998US5790422 Method and apparatus for determining the quantity of a liquid in a container independent of its spatial orientation
08/04/1998US5789675 Disposable electromagnetic fluid level sensor
07/1998
07/30/1998WO1998033044A1 Capacitative level detector with optimized electrode geometry
07/30/1998DE19713267A1 Verfahren zur Bestimmung der Dielektrizitätskonstante und/oder der Leitfähigkeit mindestens eines Mediums sowie Vorrichtung zur Durchführung des Verfahrens A method for determining the dielectric constant and / or conductivity of at least one medium, and apparatus for carrying out the method
07/30/1998DE19703101A1 Device for controlling full level limit in strong=walled closed containers