| 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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| 05/01/2001 | US6226081 Optical height of fill detection system and associated methods |
| 05/01/2001 | US6223596 Portable clamp-on liquid level indicator gauge |
| 05/01/2001 | US6223595 Resistive fluid level sensing and control system |
| 04/26/2001 | WO2001029523A1 Apparatus for measuring the level in a container |
| 04/26/2001 | WO2001029522A1 Process cut-off for fill-level measuring device |
| 04/26/2001 | WO2001029521A1 Method for increasing the interference resistance of a time frame reflectometer and a circuit device for implementing said method |
| 04/26/2001 | WO2001029520A1 Capacitance sensor for detecting the fill level of a medium in a container |
| 04/26/2001 | DE19951342A1 Filling level display; has flange with tube having float rod with giant magnetoresistance non-contact sensor opposite magnetic part of float rod joint and magnetically controlled display unit |
| 04/26/2001 | DE19950801A1 Arrangement for accepting postal items has postal item chamber, insertion opening, monitoring device for monitoring chamber and output device for outputting monitoring results |
| 04/26/2001 | DE19950429A1 Process separator for filling level sensor, has metal body with central passage bore and containing ceramic conductor |
| 04/26/2001 | DE19949096A1 Waste water treatment basin has sediment depth sensor float connected to external indicator by telemetry |
| 04/26/2001 | DE19935673A1 Inkjet printer with a carriage reservoir connected to a large fixed reservoir by a pump that is controlled by a capacitor type level sensor to maintain constantly the carriage ink tank between lower and upper levels |
| 04/25/2001 | EP1094307A1 Termination circuit for a measuring device |
| 04/25/2001 | EP0748455B1 Triangular position detection method and apparatus |
| 04/24/2001 | US6223131 Ink cartridge for an ink-jet recording apparatus, and a system for detecting and displaying an ink consumption state of an ink cartridge |
| 04/24/2001 | US6220091 Liquid level pressure sensor and method |
| 04/24/2001 | US6220077 Apparatus for controlling the level of a fluid in a tank |
| 04/24/2001 | US6219933 Container for fluid and fluid level detector using the same |
| 04/19/2001 | WO2001026533A1 Washing agents dispenser for a domestic washing machine, namely a dishwasher |
| 04/19/2001 | WO2000002015A3 Liquid level gauge |
| 04/19/2001 | DE10051151A1 Time domain reflectometry measurement for petroleum product processing, compares amplitudes of feedback pulses generated by reflection of microwave pulses from boundary surfaces of liquid layers and reference pulse |
| 04/18/2001 | EP1092963A2 Automatic device, fitted with perfected detector equipment, for checking filling level of open containers for sundry products, especially canned foods and the like |
| 04/18/2001 | EP1092958A1 Method and device for measuring the quantity of powder or the change of the quantity of powder in a container |
| 04/18/2001 | EP1092473A2 Device for gravimetric testing of multichannel pipettes |
| 04/18/2001 | CN2426977Y High-temperature optical coupling interface liquid level meter |
| 04/18/2001 | CN2426839Y Level sensor |
| 04/18/2001 | CN2426829Y Apparatus for metering & detecting supplying fuel to vehicle |
| 04/17/2001 | US6218949 Liquid level monitoring and control apparatus |
| 04/17/2001 | US6218948 Bilge sentry |
| 04/17/2001 | US6217752 Septic tank alarm system |
| 04/17/2001 | US6216623 Tanker void space leakage detector system |
| 04/17/2001 | US6216534 Liquid level gauge with hinged float arm |
| 04/17/2001 | CA2214556C Fluid level detection system for ink in a printing press |
| 04/15/2001 | CA2287579A1 Equi-vinum |
| 04/15/2001 | CA2286439A1 Improvements in time domain reflectometry |
| 04/12/2001 | WO1999020982A3 System for measuring materials in a vessel |
| 04/12/2001 | DE19958195A1 Brake fluid container with a magnetically operatable electric switch comprises a float made of a material containing finely dispersed particles of a permanent magnet material |
| 04/12/2001 | DE19944331A1 Mikrosensor zur Positionsmessung von Flüssigkeiten in Kapillaren Micro-sensor for measuring the position of liquids in capillaries |
| 04/12/2001 | DE10012309A1 Thermal heat flux measurement device for flow rate measurement has a flow rate adjustment stage comprising an array of resistances and fuses, where the fuses are burnt out to set the correct operating range. |
| 04/11/2001 | EP1091199A1 Method for functional testing of a limit switch |
| 04/11/2001 | EP1091198A1 Capacitive level sensor device for a dielectric liquid |
| 04/11/2001 | EP1089892A2 Process and device for determining the residual amount of fuel in a motor vehicle fuel system |
| 04/11/2001 | EP0932502B1 Process and plant for preparing printing paste or the like, in particular for printing textile or carpet webs |
| 04/11/2001 | EP0629859B1 Dispensing device |
| 04/11/2001 | CN1290852A Connection circuit for measurer |
| 04/10/2001 | US6215226 Ultrasonic liquid gauging system |
| 04/10/2001 | US6212956 High output capacitative gas/liquid detector |
| 04/10/2001 | US6212950 Glass interlaced fuel system low current rheostat |
| 04/10/2001 | US6212949 Level sensor and washer unit |
| 04/10/2001 | US6212943 Method and apparatus for the sonic measurement of sludge and clarity conditions during the treatment on waste water |
| 04/08/2001 | CA2285771A1 Gauge for measuring liquid level in tanks |
| 04/05/2001 | DE19939214A1 Neigungsmeßeinrichtung Neigungsmeßeinrichtung |
| 04/05/2001 | DE10047667A1 Low power radar device for measuring level of liquid comprises probe with base plate and transceiver connected to probe which generates microwave pulse, part of which is reflected from base plate and part from surface of liquid |
| 04/04/2001 | EP1088203A1 Wireless fuel gauge |
| 04/04/2001 | CN2426139Y Induction type liquid level controller |
| 04/04/2001 | CN2425662Y Automatic infusion warning device |
| 04/03/2001 | US6209392 Fuel level sensor with miniaturized ceramic resistor card |
| 03/29/2001 | WO2001021429A1 Fuel transfer pump and control |
| 03/29/2001 | WO2000077502A3 Gamma ray density profile sensor with passively cooled pin photodiodes |
| 03/29/2001 | WO2000055583A8 Sensor plug and method and apparatus for determining an amount of oil in a device |
| 03/29/2001 | DE19934041A1 Fill level sensor device for liquid level detection in container, has control and evaluation circuit which senses detuning of resonance frequency of a microwave resonator in response to liquid proximity |
| 03/28/2001 | EP0891520A4 Fuzzy logic liquid level control |
| 03/28/2001 | CN2425352Y Water level indicator for solar water heater |
| 03/28/2001 | CN2425351Y High-precision electronic level indicator |
| 03/27/2001 | US6208943 Fluid flow measurement correcting system and methods of constructing and utilizing same |
| 03/27/2001 | US6205855 Device for monitoring a predetermined level in a container |
| 03/27/2001 | CA2320435A1 Low power radar level instrument with enhanced diagnostics |
| 03/27/2001 | CA2211355C Volume verification apparatus and method |
| 03/27/2001 | CA2186805C Apparatus and method for sensing fluid level |
| 03/22/2001 | WO2001020273A1 Device for determining the fill level of a filling substance in a container |
| 03/22/2001 | WO2001020272A1 Device for the detection of the liquid level in a tank |
| 03/22/2001 | WO2001020271A1 Microsensor for measuring the position of liquids in capillaries |
| 03/22/2001 | DE19944330A1 Füllstandssensor Level sensor |
| 03/22/2001 | DE19944103A1 Vorrichtung zur Bestimmung des Füllstandes eines Füllguts in einem Behälter Device for determining the filling level of a filling material in a container |
| 03/22/2001 | DE19940259A1 Device for measuring the level of aqueous media comprises sensors arranged in a row along a long strip of a flexible circuit support |
| 03/21/2001 | EP1085304A1 Level indicator |
| 03/21/2001 | EP1084383A1 Method and device for determining the filling level in containers |
| 03/21/2001 | EP0965056A4 Condensate free ultrasonic transmitter |
| 03/21/2001 | CN1288150A Liquid level sensor |
| 03/20/2001 | US6202487 Liquid level detecting device including a container having a first receptacle and a second receptacle |
| 03/20/2001 | US6202486 Analog liquid level sensor |
| 03/20/2001 | US6202485 Filling level measuring device operating with microwaves |
| 03/20/2001 | US6202484 Method and device for determining a liquid level with the aid of ultrasonic pulses |
| 03/15/2001 | WO2001018503A1 Fuel system |
| 03/15/2001 | WO2001018502A1 Device for determining a physical process variable of a medium |
| 03/15/2001 | DE10041731A1 Miniature reference point cell for temperature sensor in-situ calibration uses coaxial inner and outer crucibles of different ceramic materials |
| 03/15/2001 | DE10021721A1 Refueling optimization system and improved ultrasonic fuel level sensor accurately determines remaining fuel quantity and transmits this via a network so that instructions about an optimum refueling location can be sent back |
| 03/15/2001 | CA2384677A1 Fuel system |
| 03/14/2001 | EP1083414A1 Level measuring device |
| 03/14/2001 | EP1083413A1 Device for measuring the level of a product in a container |
| 03/14/2001 | EP1083412A1 Device for determining a physical quantity of a fluid or a solid material |
| 03/14/2001 | CN2423576Y Ratio liquid level gauge |
| 03/14/2001 | CN2423575Y Level for measuring container water |
| 03/14/2001 | CN2423570Y Pitot-type oil-flow electric relay |
| 03/14/2001 | CN1287613A Level indicator and method of manufacturing conductor electrode of level indicator |
| 03/13/2001 | US6199428 Fluid level measuring device |
| 03/08/2001 | WO2001016591A1 Apparatus and method for detecting the level of a mud bed |
| 03/08/2001 | WO2001016560A2 Method and apparatus for snow depth mapping |
| 03/08/2001 | WO2000045136A3 Volume measurement system and method for volume element counting |
| 03/08/2001 | DE19942379A1 Vorrichtung zur Messung eines Füllstandes einer Flüssigkeit in einem Behälter Device for measuring a fill level of a liquid in a container |