| 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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| 04/04/2013 | WO2013044381A1 Apparatus and method for volume and mass estimation of a multiphase fluid stored at cryogenic temperatures |
| 04/04/2013 | US20130081480 Instrument fault indication apparatus |
| 04/04/2013 | DE102011114718A1 Filling level sensor for container filled with liquid in anode water separator in fuel cell system utilized for providing electrical energy to e.g. ship, has vibration sensor arranged at distance from vibration generator |
| 04/04/2013 | DE102011054133A1 Füllstandsmessvorrichtung für Atemluftbefeuchter Level measuring device for humidifier |
| 04/04/2013 | CA2849965A1 Drainable sight glass and associated methods |
| 04/03/2013 | EP2574893A2 Method and device for temperature measurement in a heat accumulator |
| 04/03/2013 | EP2574356A1 Micro-fluidic "dead-end channel"-structure for pressure measurement within a fluid channel on the basis of the change of the volume of a trapped gas bubble |
| 04/03/2013 | CN202854168U Modular device for measuring cross-section velocity of solid model |
| 04/03/2013 | CN202853831U Bernoulli experiment tube ruler double reading pressure measuring device |
| 04/03/2013 | CN202853706U Anti-corrosion float |
| 04/03/2013 | CN202853705U Mechanism capable of enhancing reliability of floater mechanism |
| 04/03/2013 | CN202853704U Magnetic-sensing two-tone liquidometer |
| 04/03/2013 | CN202853703U Oil level indicator based on Hall effect |
| 04/03/2013 | CN202853702U Intelligent magnetostrictive liquid level meter for oil field |
| 04/03/2013 | CN202853701U Slurry storage tank liquid level alarm device |
| 04/03/2013 | CN202853700U Liquid level detection apparatus for liquid corrosion |
| 04/03/2013 | CN202853699U Suspension type float level meter |
| 04/03/2013 | CN202853698U Far-transmission buoy liquid level meter |
| 04/03/2013 | CN202853697U Box-type content gauge |
| 04/03/2013 | CN202853696U Energy-saving heat conduction respirator |
| 04/03/2013 | CN202853695U Power transformer oil level monitoring and warning device |
| 04/03/2013 | CN202853694U Accumulated water warning system for recessed-type flyover |
| 04/03/2013 | CN202853693U Liquid level detection device |
| 04/03/2013 | CN202853692U Water level detecting device |
| 04/03/2013 | CN202853691U Digital input type level transmitter |
| 04/03/2013 | CN202853690U Automatic well water level and water temperature detector |
| 04/03/2013 | CN202853689U Water tank liquid level measurement device |
| 04/03/2013 | CN202853688U Dual-light-source quartz tube content gauge |
| 04/03/2013 | CN202853687U Steam pocket water level gauge of boiler |
| 04/03/2013 | CN202853686U Automatic measuring device for irrigation and drainage quantity of rice field plot experiment |
| 04/03/2013 | CN202853685U Automatic measuring device for water level of surface of rice field |
| 04/03/2013 | CN202853684U Device for liquid level alarming |
| 04/03/2013 | CN202853683U Water-shortage automatic alarming system for water storage tank of plant screen |
| 04/03/2013 | CN202853682U Water-shortage alarming system for plant cultivating device |
| 04/03/2013 | CN202853681U Aviation oil leveler component |
| 04/03/2013 | CN202853680U Liquid level sensing system chip |
| 04/03/2013 | CN202853659U Liquid level height and temperature collector |
| 04/03/2013 | CN202853634U Soft oil pocket field indicating device |
| 04/03/2013 | CN202852677U High-temperature glass tube liquid indicator self-lighting device |
| 04/03/2013 | CN202850997U Novel coal piling window |
| 04/03/2013 | CN202850780U Flood prevention door for household |
| 04/03/2013 | CN202847650U Washing liquid tank of automobile air window |
| 04/03/2013 | CN103026628A Method for regulating the phase in an tuned circuit |
| 04/03/2013 | CN103026184A Oil level indicator for a screw-type compressor |
| 04/03/2013 | CN103023472A Special liquid level relay for lithium bromide solution |
| 04/03/2013 | CN103017869A Water level measuring system and method based on digital image processing |
| 04/03/2013 | CN103017868A Level gauging system and method of determining distance to surface of product |
| 04/03/2013 | CN103017867A Calibration of a level gauge system |
| 04/03/2013 | CN103017866A MFPW radar level gauging with distance approximation |
| 04/03/2013 | CN103017865A 间歇表面测量 Intermittent surface measurement |
| 04/03/2013 | CN103017864A Tubular three-electrode capacitive liquid level detection sensor and detection method |
| 04/03/2013 | CN103017863A Parallel-plate multi-electrode capacitance type oil level sensor |
| 04/03/2013 | CN103017862A Intelligent level-measuring system |
| 04/03/2013 | CN103017861A Method for measuring liquid level of multiple points with one pressure sensor |
| 04/03/2013 | CN103017860A Method and system for prewarning drought and flood disasters of farmlands |
| 04/03/2013 | CN103017859A Contact type high-temperature metal meltwater liquid level height measuring device |
| 04/03/2013 | CN103017858A Practical material level device for storage bin |
| 04/03/2013 | CN103017857A Remote digital liquid level detector |
| 04/03/2013 | CN103017856A Oil level abnormity detecting and reporting device for automobile oil tank |
| 04/03/2013 | CN103017855A Guiding-rod type material level gauge with guiding device |
| 04/03/2013 | CN103017854A Oil amount calculating method, device and monitoring system |
| 04/03/2013 | CN103017853A Water level probe with self-checking function and self-checking method of water level probe |
| 04/03/2013 | CN103006075A Automatic barreled drinking water ordering device and control method thereof |
| 04/03/2013 | CN102338656B Device for measuring height of water level and giving early warning about height of water level |
| 04/03/2013 | CN102099641B Sight glass assembly |
| 04/02/2013 | US8412473 Event monitoring and detection in liquid level monitoring system |
| 04/02/2013 | CA2700139C Bubble column type hydrocarbon synthesis reactor, and slurry level detecting method |
| 03/28/2013 | WO2013041321A1 Measuring device |
| 03/28/2013 | WO2013041149A1 Intermittent surface measurement |
| 03/28/2013 | WO2013041148A1 Calibration of a level gauge system |
| 03/28/2013 | WO2013041027A1 Dirt-proof water level sensing device and solar water heater using same |
| 03/28/2013 | US20130074595 Fluid tilt sensor within ink tank supply item for micro-fluid applications |
| 03/28/2013 | US20130074594 Fluid tilt sensor within ink tank supply item for micro-fluid applications |
| 03/28/2013 | DE102008052188B4 Füllstandssensor Level sensor |
| 03/27/2013 | EP2573547A1 Drug solution determination device and drug solution determination method |
| 03/27/2013 | EP2573525A1 Oil sensor |
| 03/27/2013 | EP2573345A1 Scr system |
| 03/27/2013 | EP2572172A1 Pulsed radar level gauge system and method with reduced start-up time |
| 03/27/2013 | CN202836856U Water level pressure sensor |
| 03/27/2013 | CN202836689U Flexible oil pointer of coal mining machine for mines |
| 03/27/2013 | CN202836688U In-tank liquid level detector capable of realizing remote communication |
| 03/27/2013 | CN202836687U Bent measuring rod magnetostriction liquid level sensor |
| 03/27/2013 | CN202836686U Oil level alarm for fishing boat |
| 03/27/2013 | CN202836685U Corrosion prevention and heat preservation type integrated liquid level detection meter |
| 03/27/2013 | CN202836684U Fuel quantity transducer device |
| 03/27/2013 | CN202836683U Water level alarming system |
| 03/27/2013 | CN202836682U Settling tank sludge layer on-line continuous detector |
| 03/27/2013 | CN202836681U Liquid level indictor for fracturing fluid transportation tank truck |
| 03/27/2013 | CN202836680U Device capable of forecasting flow and flow rates of pipeline through water levels of pipeline |
| 03/27/2013 | CN202836679U Optical fiber probe and liquid interface detection device provided with the same |
| 03/27/2013 | CN202836678U Liquid level measurement device with scavenging function |
| 03/27/2013 | CN202836677U Sampler for liquid level of conductive liquid |
| 03/27/2013 | CN202836676U Liquid-level sensor |
| 03/27/2013 | CN202836675U Mortar replacement quantity rule |
| 03/27/2013 | CN202836674U Visible liquid indicator mounted on petroleum tank body |
| 03/27/2013 | CN202836673U Long-distance water level monitoring device |
| 03/27/2013 | CN202836672U Car brake cooling water tank water level monitor |
| 03/27/2013 | CN202836671U Adjustable dual sealed liquid level sensor |
| 03/27/2013 | CN202836670U Novel electrode type coal piling sensor |
| 03/27/2013 | CN202836669U Water level sensor used in hyperbaric environment |