| 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) |
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| 03/10/1993 | CN2128001Y Digital liquid level display transformer |
| 03/09/1993 | US5192933 Field-adjustable ultrasonic detector |
| 03/09/1993 | US5191999 Liquid actuated switch device |
| 03/04/1993 | WO1993004355A1 Automatic liquid sampler |
| 03/04/1993 | WO1993004344A1 Sight flow apparatus with cartridge |
| 03/04/1993 | DE4129060A1 Level sensor with plastic housing containing float shaft, e.g. for vehicle fuel tanks - has movable bearing inside housing for shaft whose other end protrudes via seal and carries float lever |
| 03/04/1993 | DE4128793A1 Cheap, compact capacitive liq.-level measuring system for e.g. food industry - has electrodes covered with non-conductive layer on aluminium oxide support |
| 03/04/1993 | CA2077467A1 Ultrasonic method and apparatus for determining water level in a closed vessel |
| 03/03/1993 | EP0530102A1 Container having integrated liquid level detection means |
| 03/03/1993 | CN1019997C Method for measuring length, and apparatus for implementing method |
| 03/02/1993 | US5191316 Apparatus for determining and/or monitoring a predetermined contents level in a container |
| 03/02/1993 | US5189911 Liquid level and temperature sensing device |
| 02/25/1993 | DE4128178A1 Fuel level measurer in fibre reinforced laminated tank of aircraft - has non-magnetic sensing tube contg. magnetic float and carrying Hall probes communicating with interior of tank |
| 02/24/1993 | CN2127519Y Gravity type membrane switch charge level incicator |
| 02/24/1993 | CN1069335A Incrustation removing method in water level gauge |
| 02/23/1993 | US5187979 Multi-sensor probe assembly and method for fuel storage system including overflow protection means |
| 02/20/1993 | CA2049483A1 Residual fluid detection apparatus |
| 02/18/1993 | WO1993003343A1 Improved leak detector float system |
| 02/18/1993 | WO1993003340A1 Time gate ultrasonic sensor and method |
| 02/18/1993 | WO1993003339A1 Tank level gauge of driven sensor type |
| 02/18/1993 | DE4127233A1 Level measurement in container of liq. or power - tracking pressure in gas source above contents during adiabatic compression and isothermal expansion |
| 02/18/1993 | DE4126599A1 Liq. level meter for stationary or moving containers - exploits medium frequency signal attenuation evaluated by processor which gives proportional output after preliminary learning phase |
| 02/18/1993 | DE4126091A1 Container filling limit conductive measurement |
| 02/17/1993 | EP0527435A1 Procedure and device for conductive discrete filling level measurement |
| 02/17/1993 | CN1069123A Time gate ultrasonic sensor and method |
| 02/16/1993 | US5187498 Ink supply container and system |
| 02/16/1993 | US5187444 Sensor for sensing the presence of electrolyte solution |
| 02/16/1993 | US5187366 Sensors for detecting leaks |
| 02/16/1993 | US5186052 Storm water flow monitoring |
| 02/11/1993 | DE4126399A1 Ultrasonic transducer using piezo oscillator - has thermo-sensor for temp. compensation on diaphragm and=or reception of vibrations |
| 02/10/1993 | EP0526629A1 Radioactive areal density detector with scintillating receiver |
| 02/10/1993 | CN1068888A Simple transmission bicolor liquid level indicator |
| 02/09/1993 | US5185533 Monitoring film fouling in a process stream with a transparent shunt and light detecting means |
| 02/09/1993 | US5185031 Device and method for skull-melting depth measurement |
| 02/09/1993 | US5184512 Measuring the length of a column of fluid in a tube |
| 02/09/1993 | US5184511 Measuring tank sight glass |
| 02/09/1993 | US5184510 Liquid level sensor |
| 02/04/1993 | WO1993002340A1 Liquid level sensor |
| 02/04/1993 | DE4125588A1 Vehicle oil level meter with electromagnetically operated piston - has oil feed to cylinder chamber forming oil cushion which retards piston movement at or near its rest position |
| 02/03/1993 | EP0526210A1 Apparatus for detecting bubbles in reagent pipetting apparatus |
| 02/02/1993 | US5183267 Oil seal unit |
| 02/02/1993 | US5182947 Electric measuring arrangement for determining the level of an electrically conductive liquid |
| 01/27/1993 | EP0524275A1 Electric circuit for a device for measuring the level in industrial tanks and the like |
| 01/26/1993 | US5182791 Probe for transmitting light through a fluid |
| 01/26/1993 | US5182565 In-furnace slag level measuring method and apparatus therefor |
| 01/26/1993 | US5182545 Fluid level sensor having capacitive sensor |
| 01/26/1993 | CA1313058C Method and apparatus for monitoring a liquid level |
| 01/21/1993 | DE4124054A1 Capacitive level measurement probe, esp. for ballast contg. graphite or liquid metal - has AC measurement bridge connected between conducting surface inside insulated tube and conducting measurement medium |
| 01/20/1993 | CN1068189A Liquid level detecting method for electromagnetic casting |
| 01/19/1993 | US5181022 Apparatus for use in refueling marine tanks |
| 01/19/1993 | US5180643 Hydrometer collar improvement |
| 01/14/1993 | DE4121796A1 Electrically conductive fluid level indicator esp. for brine level in salt pit - has electrodes in parallel with high-ohm resistances for long life under high pressure and temp. |
| 01/13/1993 | EP0522989A1 Device to optoelectronically detect the quantity of liquid in a container |
| 01/13/1993 | EP0413754B1 Level indicator |
| 01/12/1993 | US5178091 Product and method for detecting a low level of liquid in a liquid reservoir |
| 01/12/1993 | US5178019 Heated liquid sampling probe for an automated sampling apparatus |
| 01/12/1993 | US5178009 Integral temperature and liquid level sensor and control |
| 01/07/1993 | WO1993000573A1 Interface level detector |
| 01/07/1993 | DE4220714A1 Ultrasonic liquid level indicator esp. for automatic analyser - has ultrasonic transmitter and receiver above liquid container and transmission arrangement preventing reflections at container aperture |
| 01/07/1993 | DE4121930A1 Sediment level sensors, esp. for dental centrifuge collection container - has tactile sensing element on carrier in form of shaft with two lever arms, one carrying position transducer part, separate transducer and drive housing |
| 01/05/1993 | WO1993001474A1 A device for gauging the level of a fluid |
| 01/05/1993 | US5176029 Ullage tube viewing device |
| 01/05/1993 | CA2112691A1 A device for gauging the level of a fluid |
| 12/30/1992 | EP0520954A1 Optical signalling device for tanks |
| 12/30/1992 | EP0520046A1 Telemeter, in particular for measuring the level in industrial tanks. |
| 12/30/1992 | EP0387287B1 Thermoplastic melting apparatus with a level indicator |
| 12/30/1992 | CN2126417U Acoustooptic liquid level alarming instrument |
| 12/30/1992 | CN2126416U New-body of double colour hydrological gauge |
| 12/30/1992 | CN2126415U Double-colour hydrological gauge with double reflection-side |
| 12/29/1992 | US5174931 Vessel for holding building material, smoothing member for forming uniform coating over previous layer, means to apply pattern of synergistic stimulation to form layer |
| 12/29/1992 | US5174153 Device for detecting the level of a liquid in a receptacle |
| 12/29/1992 | CA1311938C Vehicle fuel level sensor |
| 12/26/1992 | CA2070748A1 Fill sensor for paint gun |
| 12/24/1992 | DE4120186A1 Level measuring appts. esp. for contents of gas cylinder - has gauge linked by liq.-filled tube to piston sliding under wt. of cylinder and contents |
| 12/24/1992 | DE4042472A1 IC engine crankcase sump oil level measurement appts. esp. for vehicle |
| 12/23/1992 | EP0519794A1 Controlling device for filling and automatic stopping at a pre-determined level for liquified petroleum gas (LPG) tanks |
| 12/23/1992 | EP0519193A1 Dosing balance |
| 12/23/1992 | CN2125821U Magnetic liquid level gage |
| 12/22/1992 | US5172595 Bin level control circuit and transducer mounting system for an ice making machine |
| 12/22/1992 | US5172594 Externally removable liquid level sensor system |
| 12/17/1992 | DE4119437A1 Liq. level measurement arrangement esp. for vehicle engine oil - measures change in viscosity between air and liq. using change in current drawn by measurement motor |
| 12/17/1992 | DE4118170A1 Electrical capacitive level meter esp. for water - has copper@ strip inserted into conducting tube from which it is insulated by styroflex foil or ceramic insulation |
| 12/16/1992 | EP0518307A2 Sensor arrangement for level detection of free-flowing media as well as method for its fabrication |
| 12/16/1992 | EP0518235A2 Liquid level detection apparatus |
| 12/16/1992 | CN2125129U Liquid level sensor |
| 12/16/1992 | CN2125128U Swaying type charge level interrogate device |
| 12/15/1992 | US5172332 Automatic fluid sampling and monitoring apparatus and method |
| 12/15/1992 | US5172007 In a vehicular fuel delivery system |
| 12/10/1992 | WO1992021946A1 Oil level monitor |
| 12/10/1992 | WO1992021944A1 Digital level sensing probe system |
| 12/10/1992 | DE4218899A1 Stroemungsmessvorrichtung Flow meter |
| 12/10/1992 | DE4118896A1 Monitoring and displaying appts. for oil level in reservoir e.g. of compressor - shows level for reference or under load state during other states using last level change for correction |
| 12/10/1992 | DE4118793A1 Vorrichtung zur feststellung und/oder ueberwachung eines vorbestimmten fuellstandes in einem behaelter Apparatus for fixed position and / or frequency monitoring a predetermined level in a container |
| 12/10/1992 | DE4118715A1 Vorrichtung zur elektrisch isolierten befestigung einer metallischen sondenelektrode in der oeffnung eines gehaeuses An apparatus for electrically insulated mounting of a metallic probe electrode in the opening of a housing |
| 12/08/1992 | WO1992021945A1 Device for detecting and/or monitoring a predetermined level in a container |
| 12/08/1992 | WO1992021943A1 Device for securing in an electrically insulated manner a metallic probe electrode in the opening of a housing |
| 12/08/1992 | US5170363 Fuel gauge system for indicating amount of mixed fuel |
| 12/03/1992 | DE4117437A1 Drawing device with ink level monitor, e.g. for draughting machine - has ink reservoir with float body detected by external sensor when min. ink level reached |
| 12/02/1992 | EP0516242A2 Resistor-operated tubular rotary level indicator of float-type |
| 12/02/1992 | EP0515713A1 Spool-type oil-dipstick wiper |