| 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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| 02/21/2002 | US20020021908 Developing device, process cartridge and image forming apparatus |
| 02/21/2002 | US20020020216 Filling-level measuring device that evaluates echo signals |
| 02/21/2002 | DE10133692A1 Method of measuring level of liquid in container involves forming indication signal from variable capacitance of capacitor or characteristic impedance of immersion sensor |
| 02/21/2002 | DE10038189A1 Display for showing the level of fullness in a domestic appliance such as a coffee machine |
| 02/20/2002 | EP1180667A2 Sensor for the determination of fluid level and temperature |
| 02/20/2002 | EP1180666A1 Structure for installing a fuel level sensor in a fuel tank for automobiles |
| 02/20/2002 | EP0995083B1 Capacitative level detector with optimized electrode geometry |
| 02/20/2002 | CN2478085Y Cannel water level auto recorder |
| 02/20/2002 | CN2478084Y Level meter |
| 02/20/2002 | CN2478083Y Flat water gage |
| 02/19/2002 | US6347552 Dynamic non-invasive detection of analytical container features using ultrasound |
| 02/14/2002 | WO2002012834A1 Device for measuring/determining a physical quantity of a medium |
| 02/14/2002 | WO2002012832A1 Optical transducer |
| 02/14/2002 | WO2002012782A1 Liquefied gas container |
| 02/14/2002 | WO2002012780A1 Automatic refill system for ultra pure or contamination sensitive chemicals |
| 02/14/2002 | WO2000049374A9 Liquid level sensor for internal combustion engine |
| 02/14/2002 | US20020017829 Method to control piezoelectric drives |
| 02/14/2002 | US20020017131 Device for measuring the filling level of a filling material in a container |
| 02/14/2002 | DE10038826A1 Level sensor for domestic machines, has overflow level defined by mechanical stop |
| 02/14/2002 | DE10037911A1 Vorrichtung zum Messen/Bestimmen einer physikalischen Grösse eines Mediums Apparatus for measuring / determining a physical size of a medium |
| 02/14/2002 | DE10037715A1 Vorrichtung zur Messung des Füllstands eines Füllguts in einem Behälter Device for measuring the filling level of a filling material in a container |
| 02/13/2002 | EP1179661A2 Liquid container for motor vehicles |
| 02/13/2002 | CN2476800Y Barrel liquid level sensor device |
| 02/13/2002 | CN2476799Y Multifunction pipe-type oil level gauge |
| 02/13/2002 | CN2476798Y Holder for senser of fibre-optical closed-loop fluid level control instrument |
| 02/13/2002 | CN1335540A Developer container and quantity detecting system, processing box, developing & imaging forming equipment |
| 02/13/2002 | CN1335489A Dual-container electrode water level measuring cylinder |
| 02/13/2002 | CN1079156C Combination type water level metering barrel for boiler cylinder |
| 02/12/2002 | US6345683 System and method for an improved device for measuring water levels |
| 02/12/2002 | US6345532 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 |
| 02/12/2002 | CA2266874C Filling level measuring device operating with microwaves |
| 02/07/2002 | WO2001042014A3 Apparatus for sensing the fluid level in an ink and water mixing device |
| 02/07/2002 | US20020015068 Detector of liquid consumption condition |
| 02/07/2002 | US20020014957 Oil proper amount informing apparatus for engine |
| 02/07/2002 | US20020014590 Radiation-sensitive-device based level |
| 02/07/2002 | US20020014275 Automatic refill system for ultra pure or contamination sensitive chemicals |
| 02/07/2002 | US20020014118 Fluid level verification apparatus |
| 02/07/2002 | US20020014117 Oscillating element that can be piezoelectrically excited |
| 02/07/2002 | US20020014116 Methods and systems for measuring crop density |
| 02/07/2002 | DE10046921C1 Delivered fluid quantity measuring method e.g. for tanker vehicle, compares quantity of fluid in storage tank before and after delivery |
| 02/07/2002 | DE10034875A1 Fill-level measuring arrangement e.g. for container filled with powder, has pulse amplifier which is switched ON only when transmission pulses and/or scanning pulses are supplied to mixer |
| 02/06/2002 | EP1177419A1 Device for detecting the level of liquid, particularly for submersed pumps |
| 02/06/2002 | EP1177418A1 Level transmitter |
| 02/06/2002 | EP1177417A1 Method and apparatus for detection of a fluid level in a container |
| 02/06/2002 | EP0857295B1 Automated immunoassay processing system |
| 02/06/2002 | CN2476001Y Floating ball liquid level controller |
| 02/06/2002 | CN2476000Y High temp. polymeric fibre-optical liquid level signal detector |
| 02/06/2002 | CN2475999Y Quartz glass tube liquid level gauge |
| 02/06/2002 | CN1334579A Fluid horizontal detection switch |
| 02/05/2002 | US6345214 Device for monitoring the storage level of a product stored in a tank |
| 02/05/2002 | CA2281455C Apparatus for establishing and/or monitoring a predetermined filling level in a container |
| 01/31/2002 | US20020012015 Mounting structure, module, and liquid container |
| 01/31/2002 | US20020011589 Piezoelectric elements arranged in form of stack; sensor for measurement instruments operating at very high temperatures |
| 01/31/2002 | US20020011105 Liquid level detector system |
| 01/31/2002 | DE10038792C1 Measuring container liquid level involves alternately measuring thermovoltage, temperature-dependent electrical resistance of conducting path region(s) with cooling intervals between |
| 01/31/2002 | CA2354488A1 Differential pressure guage for cryogenic fluids |
| 01/30/2002 | EP1176417A1 Method and device for imaging liquid-filled container |
| 01/30/2002 | EP1176416A1 Method and device for imaging liquid filling container |
| 01/30/2002 | EP1176403A2 Detector of liquid consumption condition |
| 01/30/2002 | CN2475008Y Oil level indicator |
| 01/30/2002 | CN2475007Y Frequency change type liquid level control sensor capable of inserting into water tank |
| 01/30/2002 | CN2475006Y Automatic controlling device for displaying water level and water temperature of water tank |
| 01/29/2002 | US6341524 Fuel gauge unit for a fuel tank |
| 01/24/2002 | WO2002006776A2 Method and sensor for measuring the level of a liquid in a receptacle |
| 01/24/2002 | WO2002006774A2 Liquid gauging apparatus using a time delay neural network |
| 01/24/2002 | US20020009393 Detection using electroconductivity |
| 01/24/2002 | US20020008724 Semiconductor device, ink tank provided with such semiconductor device, ink jet cartridge, ink jet recording apparatus, method for manufacturing such semiconductor device, and communication system, method for controlling pressure, memory element, security system of ink jet recording apparatus |
| 01/24/2002 | US20020008659 Level transmitter |
| 01/24/2002 | US20020008526 Capacitance level measurement circuit and system |
| 01/24/2002 | DE10032775A1 Liquid level monitoring and measuring device has surface wave conductor having several coaxial layers each comprising twisted wires |
| 01/24/2002 | CA2415693A1 Liquid gauging apparatus using a time delay neural network |
| 01/23/2002 | EP1174895A2 Fluid level sensing switch |
| 01/23/2002 | EP1174692A1 Liquid level detector |
| 01/23/2002 | CN2473599Y Oil quantity sensor |
| 01/23/2002 | CN2472729Y Electronic monitoring transfusion report device |
| 01/22/2002 | US6339960 Non-intrusive pressure and level sensor for sealed containers |
| 01/17/2002 | WO2002004916A2 Method and apparatus for determining the composition of fluids |
| 01/17/2002 | WO2002004899A1 Systems and methods for monitoring introduction of a processing fluid during a fluid processing procedure |
| 01/17/2002 | WO2002004897A2 Method and apparatus for determining parameters of a flowing liquid |
| 01/17/2002 | US20020006799 Method and system for analysis, design, and optimization of communication networks |
| 01/17/2002 | US20020005869 System for registration of a fluid level in a receptacle |
| 01/17/2002 | US20020005715 Apparatus and method for detecting the displacement |
| 01/17/2002 | CA2507422A1 Liquid container, ink jet recording apparatus, apparatus and method for controlling the same, apparatus and method for detecting liquid consumption state |
| 01/16/2002 | CN2472206Y Float level meter |
| 01/16/2002 | CN2472205Y Penetrative and reflective ultrasonic level meter |
| 01/16/2002 | CN2472204Y Level monitor |
| 01/16/2002 | CN2472203Y Level sensor |
| 01/16/2002 | CN2471602Y IC engine fuel tank with level indicator |
| 01/16/2002 | CN1331617A Method for detecting and controlling level of liquid metal in ingot mold |
| 01/15/2002 | US6339468 Remote sensor head for laser level measurement devices |
| 01/15/2002 | US6339335 Method and device for determining the quantity of product contained in a reservoir, for example in an ink reservoir for a printer |
| 01/15/2002 | US6338272 Method for determining parameters, for example level, pressure, gas composition in closed containers |
| 01/10/2002 | WO2002003039A1 Automatic boiler level controller |
| 01/09/2002 | CN2470802Y Digital-display liquid measurement control instrument |
| 01/09/2002 | CN2470801Y Residual oil liquid level indicator |
| 01/08/2002 | US6337959 Liquid level detector and liquid level measuring apparatus of printer adopting the same |
| 01/08/2002 | US6337655 Apparatus and method for liquid level measurement in a sounding tube |
| 01/08/2002 | US6337632 Sump pump and moisture alarm |
| 01/08/2002 | US6337566 Continuous casting apparatus using a molten metal level gauge |
| 01/08/2002 | US6336363 Water level and measuring apparatus |