| 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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| 01/29/1998 | WO1998003839A1 Fluid flow measurement correcting system, and methods of constructing and utilizing same |
| 01/29/1998 | WO1998003215A1 Optical dose measurements in syringes |
| 01/29/1998 | DE19706391A1 Dipstick for measuring oil level in petrol and diesel engine |
| 01/29/1998 | DE19644059A1 Dipstick for measuring or checking level of liquid in vehicle sump |
| 01/29/1998 | DE19639250A1 Effluent water sediment detection telescopic probe and floating oil probe |
| 01/29/1998 | DE19629695A1 Determining filling level of liquid with weak electrical conduction or limited viscosity |
| 01/28/1998 | EP0821165A1 Control device for starting and stopping a submersible pump |
| 01/28/1998 | EP0799407A4 Electronic multi-purpose material level sensor |
| 01/28/1998 | EP0558668B1 Level sensing |
| 01/28/1998 | CN2273411Y External reflecting sight glass |
| 01/27/1998 | US5712934 Fiber optic infrared sensor |
| 01/27/1998 | US5712667 Means for and method of detecting the state of ink remain in a cartridge having containing portions differing in ink containing state |
| 01/27/1998 | US5711354 Level control systems for high purity chemical delivery systems |
| 01/22/1998 | WO1998002718A1 Probe and capacitance device for measuring the level of a liquid in a tank |
| 01/22/1998 | DE19629101A1 Contactless identification unit for inspection and checking of packages and contents |
| 01/22/1998 | DE19627685A1 Volumetric fluid balancer for single needle haemodialysis |
| 01/22/1998 | DE19627587A1 Vorrichtung zur Überwachung von Gebrauchseigenschaften von Fluiden, insbesondere von Druckflüssigkeiten in fluidtechnischen Anlagen Apparatus for monitoring performance characteristics of fluids, in particular pressure fluids in fluid-technical installations |
| 01/21/1998 | EP0819942A2 Apparatus for transferring liquid having liquid level sensing function |
| 01/21/1998 | EP0819061A1 Fluid level detection system for ink in a printing press |
| 01/21/1998 | CN2273014Y Fibre-optical liquid level detector |
| 01/21/1998 | CN1170792A Steam generator with automatic supply and process for measuring level of liquid in such generator |
| 01/20/1998 | US5710552 Barrier device |
| 01/20/1998 | US5709558 Electronics enclosure |
| 01/15/1998 | WO1998001750A1 Device for monitoring the useful properties of fluids, in particular pressure fluids in fluid-technical installations |
| 01/15/1998 | WO1998001726A1 Apparatus for and a method of measuring the fluid contents of containers |
| 01/14/1998 | EP0817964A1 Sensor arrangement |
| 01/14/1998 | EP0817954A1 Fluid level measuring and/or checking device |
| 01/14/1998 | CN2272569Y Air insulating type direct reading liquid level gage for viscose medium |
| 01/13/1998 | US5708424 Wireless remote fuel gauge |
| 01/13/1998 | US5708412 Fluid level and temperature monitor and alarm system |
| 01/13/1998 | US5708369 Capacitive measuring device |
| 01/13/1998 | US5708223 Remote sensing ice merchandiser |
| 01/13/1998 | US5707590 Detergent container with thermo-chromatic level indicator |
| 01/13/1998 | US5706857 Fuel tank vent value and probe assembly |
| 01/13/1998 | US5706660 Method and system for automatically controlling a solid product delivery mechanism |
| 01/08/1998 | DE19642969C1 Dosage arrangement |
| 01/08/1998 | DE19627082A1 Liquid level warning device esp. for vehicle brake fluid |
| 01/07/1998 | EP0815954A2 Sound transducer, in particular ultrasonic transducer |
| 01/07/1998 | EP0815419A1 Liquid quantity sensor and method |
| 01/07/1998 | EP0815418A2 Method and apparatus for determining the quantity of a liquid in a container independent of its spatial orientation |
| 01/07/1998 | EP0815414A2 Low power signal processing and measurement apparatus |
| 01/07/1998 | CN1169779A Liquid suction examination method and dispensation apparatus drive-controlled by the same |
| 01/06/1998 | US5705815 Device for the detection of liquid surfaces |
| 01/06/1998 | US5705750 Ultrasonic sensor and pipetting apparatus using same |
| 01/06/1998 | US5705747 System for displaying a level of a liquid contained in a tank |
| 01/06/1998 | US5705733 Apparatus for monitoring liquid levels and methods for calibrating same |
| 01/06/1998 | US5704923 Liquid level detector and alarm device for drip infusion sets |
| 01/02/1998 | DE19724864A1 Device for determining low fluid level in container with bottom emptying e.g. container for photographic developing fluid |
| 01/02/1998 | DE19710453A1 Liquid level e.g. coolant and windscreen washing liquid, float-type sensor for sensing level of fluid |
| 12/31/1997 | CN2271706Y Intelligent sodium level meter |
| 12/31/1997 | CN1168969A Integrated sensor |
| 12/30/1997 | US5703569 Retrofit hydraulic fluid leak detection system |
| 12/30/1997 | US5703289 Microwave transmitter housing |
| 12/30/1997 | US5701932 Valve with built-in level gauge |
| 12/24/1997 | WO1997048972A1 Fiber optic liquid sensing system |
| 12/23/1997 | US5701084 Insulated capacitance probe |
| 12/23/1997 | US5699731 Ink-supply control device and stencil printing machine having the same |
| 12/23/1997 | CA2132227C High pressure, leak resistant, explosionproof capacitance probe |
| 12/23/1997 | CA2132225C Capacitance measuring device |
| 12/23/1997 | CA2128676C Capacitive sensor |
| 12/18/1997 | DE19731991A1 Level indicator for fluid in gas bottle |
| 12/17/1997 | EP0813044A2 Multi-frequency ultrasonic liquid level gauging system |
| 12/17/1997 | CN2270962Y Sensor with floating magnetic dry reed pipe |
| 12/16/1997 | US5699049 Monitoring system for non-pressurized conduit |
| 12/16/1997 | US5698974 Robust gauge driving circuit with pulse modulated input |
| 12/16/1997 | US5698775 Device for locating the position of the separation between two mediums, and a receptacle and a detection process employing the device |
| 12/16/1997 | US5697248 Liquid level sensor |
| 12/16/1997 | CA2096739C Sanitary sight indicator |
| 12/11/1997 | WO1997046855A1 Method and apparatus for monitoring operational performance of fluid storage systems |
| 12/11/1997 | DE19721255A1 Measuring appts. for determining fullness or fill height esp. of fluid in container |
| 12/11/1997 | DE19623028A1 Appliance for measuring filling level |
| 12/10/1997 | EP0810946A1 Device for pressurising a unified two-liquid propulsion subsystem for geostationary satellites |
| 12/10/1997 | EP0695120B1 Metering apparatus, automatic cleaning device and milking plant equipped with such an apparatus and use of such an apparatus for cleaning a liquid-carrying plant |
| 12/10/1997 | CN2270222Y Gamma-ray level meters |
| 12/10/1997 | CN2270221Y Blind level meter |
| 12/10/1997 | CN1167253A Measuring and controlling device for water level of water storage equipment |
| 12/10/1997 | CN1167252A Meter for indicating volume of stored liquified petroleum gas |
| 12/10/1997 | CN1167231A Oil combustion machine for warming |
| 12/09/1997 | US5695713 Device for the detection of a level of molten metals |
| 12/09/1997 | US5694974 Fluid level detection system for ink in a printing press |
| 12/03/1997 | EP0810423A2 Vibrational resonator and method for using such a resonator in a point liquid level switch |
| 12/03/1997 | EP0809789A1 A method and apparatus for level gauging using radar in floating roof tanks |
| 12/02/1997 | US5693881 Ultrasonic sensor apparatus |
| 11/27/1997 | WO1997044641A1 Ultrasonic instrument for material monitoring |
| 11/27/1997 | DE19620729A1 Device for electronic detection of fluid leaks from HT installations |
| 11/27/1997 | CA2256500A1 Ultrasonic instrument for material monitoring |
| 11/26/1997 | EP0809324A2 Parabolic antenna for filling level measurement in a container |
| 11/26/1997 | CN2268926Y Two color lightweight liquid and low reading-out tube-plate water level meter |
| 11/25/1997 | US5691914 Fluid flow measurement correcting system, and methods of constructing and utilizing same |
| 11/25/1997 | CA2088906C Device for the electrically insulated attachment of a metallic probe electrode in the opening of a housing |
| 11/20/1997 | WO1997043604A1 Improvements in magnetic float type liquid level gauges |
| 11/20/1997 | DE19630655C1 Method of selective measurement of liquid level or empty state of individual chambers of tanker lorry or in pipe between base valve and filling or emptying valve |
| 11/20/1997 | DE19619842A1 Device for testing empty condition of reaction and storage containers |
| 11/19/1997 | EP0807261A2 Improvements relating to pulse echo distance measurement |
| 11/19/1997 | EP0807244A1 Volume verification apparatus and method |
| 11/19/1997 | CN2268254Y Device for monitoring feed position of storagehouse |
| 11/18/1997 | US5689290 Liquid level detecting mechanism and ink jet recording apparatus having the mechanism |
| 11/18/1997 | US5689265 Device for measuring a level of material using microwaves |
| 11/18/1997 | US5687687 Oil level sensor system |
| 11/18/1997 | US5687609 Method and apparatus for mineral flotation cell level detection |