| 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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| 06/05/1997 | DE19544968A1 Stopper for closing and opening aperture especially fuel tank at filling station |
| 06/04/1997 | EP0777112A1 Liquid level measuring device |
| 06/04/1997 | EP0777111A1 Apparatus and method for sensing fluid level |
| 06/04/1997 | EP0776463A1 System and method for sensing material level within a container |
| 06/03/1997 | US5635962 Capacitive ink level detection sensor |
| 06/03/1997 | US5635625 Oil changer |
| 06/03/1997 | US5635621 Apparatus for calibrating a fuel level detector |
| 05/29/1997 | WO1997019363A1 Nuclear magnetic resonance level gauging device |
| 05/29/1997 | WO1997019328A1 Process and device for measuring the level of fluid in a pressurised container |
| 05/29/1997 | WO1997015823A3 Measuring method and device for determining the degree of absorption and/or dispersion of a medium |
| 05/28/1997 | DE19601732C1 Dipstick with increased resistance to heat and bending forces |
| 05/28/1997 | DE19544081A1 Overflow protection system for waste solution container in chromatography |
| 05/28/1997 | DE19544071A1 Fill quantity measuring method in standard container, esp. waste container |
| 05/28/1997 | CN1150646A Displacement sensor |
| 05/27/1997 | US5633809 Multi-function flow monitoring apparatus with area velocity sensor capability |
| 05/22/1997 | WO1997008515A3 Self-calibrating open-channel flowmeter |
| 05/22/1997 | DE19543134A1 Classification determination of waste material of value especially plastic, using multi=chamber container system |
| 05/21/1997 | EP0774796A1 Microwave window |
| 05/20/1997 | US5631674 Recording apparatus |
| 05/20/1997 | US5631633 Device for determining and/or monitoring a predetermined material level in a container |
| 05/20/1997 | US5631419 Gauge assembly |
| 05/20/1997 | US5631413 Fluid holdup tool and flow meter for deviated wells |
| 05/15/1997 | WO1997017624A2 Method for fixing the position, with respect to the direction and range, of a target with an ultrasonic transducer |
| 05/15/1997 | WO1997017594A1 Liquid level determination method and apparatus |
| 05/15/1997 | WO1997017591A2 Ultrasonic monitoring technique for containers and apparatus to carry it out |
| 05/15/1997 | WO1997013122A3 Inductive sensor for monitoring fluid level and displacememt |
| 05/15/1997 | DE19601691C1 Capacitive measurement device for level of dielectric liquid in a container |
| 05/15/1997 | DE19541459A1 Verfahren zur richtungs- und entfernungsmäßigen Ortsbestimmung eines Meßobjekts mit einem Ultraschallwandler A method for directional and distance even location of a test object with an ultrasonic transducer |
| 05/15/1997 | CA2237270A1 Ultrasonic monitoring technique for containers and apparatus to carry it out |
| 05/14/1997 | EP0773433A1 Feedthrough for an electric high-frequency signal |
| 05/14/1997 | CN1149711A Double container three column electrode water level measuring tube |
| 05/13/1997 | USRE35503 Apparatus and technique for metering liquid flow |
| 05/13/1997 | US5629706 Method for simultaneously measuring the positions of more than one surface in metallurgic processes |
| 05/13/1997 | US5629681 Tubular sonic displacement sensor |
| 05/13/1997 | US5629619 Noncontact distance-measuring system having at least one coil and method of noncontact distance measuring operating either on the basis of eddy currents or by inductance |
| 05/13/1997 | US5628231 Sight glass construction |
| 05/09/1997 | WO1997016315A1 Apparatus for providing ink to an ink-jet print head and for compensating for entrapped air |
| 05/07/1997 | EP0772000A1 Steam generator with automatic feeding and process for measuring liquid level in such a steam generator |
| 05/07/1997 | DE19540532A1 Inspection window arrangement for refrigeration plant |
| 05/07/1997 | CN1149130A Universal two-color level meter |
| 05/07/1997 | CN1149129A Detecting apparatus for liquid level |
| 05/06/1997 | US5627523 Liquid level sensor device |
| 05/06/1997 | US5627380 Fluid gauging apparatus using integral electrical sensor and a stick gauge |
| 05/06/1997 | US5627325 Capacitively coupled ohmic resistance position sensor |
| 05/06/1997 | US5627304 Liquid level measuring arrangement |
| 05/06/1997 | US5626162 For measuring water precipitation and controlling water irrigation |
| 05/06/1997 | US5626053 Floatless gauge with resistive/conductive polymer |
| 05/06/1997 | US5626052 Method for collecting liquid level data |
| 05/02/1997 | EP0770914A2 Developing apparatus having float sensor system for replenishing tank |
| 05/02/1997 | EP0770886A1 Method and device for suppressing fixed target echoes during range measurement using the pulse time of flight principle |
| 05/02/1997 | EP0770861A1 Probe with laterally projecting header |
| 05/02/1997 | EP0770859A1 Calibration method for filling level measurement |
| 05/02/1997 | EP0711405B1 Self-adjusting capacitive level switch for a non-contact or contact sensing of media or objects |
| 05/02/1997 | EP0626063B1 Microwave-operated level gauge |
| 05/01/1997 | WO1997015823A2 Measuring method and device for determining the degree of absorption and/or dispersion of a medium |
| 05/01/1997 | WO1997015809A1 Level sensor and washer unit |
| 04/30/1997 | DE19638476A1 Level and volume of fuel sensor for storage tank |
| 04/30/1997 | DE19540182A1 Vorrichtung und Meßverfahren zur Bestimmung des Absorptions- und/oder Streuungsgrades eines Mediums Apparatus and method for determination of the absorption and / or scattering of a medium degree of |
| 04/30/1997 | DE19540035A1 Probe for monitoring medium in container |
| 04/30/1997 | CN2253468Y Liquid-level and parametric detecting sensor |
| 04/29/1997 | US5625344 Low fluid level warning device |
| 04/29/1997 | US5625343 Device for determining and/or monitoring a predetermined filling level |
| 04/24/1997 | WO1997014943A1 Method and device for liquid leakage indication |
| 04/23/1997 | EP0769685A2 System for monitoring a predetermined level of a fluid in a container |
| 04/23/1997 | EP0769684A2 System for monitoring a predetermined level of a fluid in a container |
| 04/23/1997 | EP0769683A2 System for monitoring a predetermined level of a fluid in a container |
| 04/23/1997 | EP0769682A2 System for monitoring a predetermined level of a fluid in a container |
| 04/23/1997 | EP0769383A2 Ink reservoir cartridge system |
| 04/23/1997 | EP0769382A1 Method and device for detecting the ink level in a cartridge |
| 04/22/1997 | US5623291 Measuring apparatus for the ink-level in ink-jet printing unit |
| 04/22/1997 | US5623252 Liquid level detector using audio frequencies |
| 04/17/1997 | DE19538331A1 Monitoring device for ice state of ice pieces in ice silos of cold water generators |
| 04/16/1997 | EP0767897A1 Thickener mud gauge |
| 04/15/1997 | US5621393 Fill-level test and measuring device |
| 04/10/1997 | WO1997013126A1 Device for detecting the emptying of a container used in the production of plastics |
| 04/10/1997 | WO1997013122A2 Inductive sensor for monitoring fluid level and displacememt |
| 04/10/1997 | WO1997007051A3 Sealed observation element for sulfur recovery unit |
| 04/10/1997 | WO1997006413A3 Disposable electromagnetic fluid level sensor |
| 04/10/1997 | WO1997005469A3 Electromagnetic acoustic transducer (emat) for ultrasonic inspection of liquids in containers |
| 04/10/1997 | DE19637978A1 Fluid level measuring system e.g. for fuel tanks |
| 04/10/1997 | DE19538516A1 Method for measuring specific quantities of a liquid, particularly water |
| 04/10/1997 | DE19537149A1 Verfahren und Meßgerät zum Messen des hydrostatischen Drucks, insbesondere des Grundwassers The method and measuring device for measuring of the hydrostatic pressure, in particular of ground water |
| 04/09/1997 | EP0766813A1 Condensation vessel for steam pressure measurements, use of this condensation vessel for level and steam flow rate measurements, and process for operating a condensation vessel |
| 04/09/1997 | EP0742892A4 Noninvasive ultrasonic liquid level indicator |
| 04/09/1997 | CN2251714Y Floating differential pressure interface-liquid level transducer |
| 04/09/1997 | CN1147086A Datum constant level balance container with multiple protection |
| 04/09/1997 | CN1147056A Liquid level monitoring arrangement |
| 04/08/1997 | US5619560 Residential fuel oil tank level reporting device |
| 04/08/1997 | US5617757 Liquid level monitoring systems for underground storage tanks and method for its installation |
| 04/03/1997 | WO1997012211A1 Microwave waveguide for tank level sensors |
| 04/03/1997 | WO1997005760A3 Ultra-wideband directional sampler |
| 04/03/1997 | DE19536199A1 Setting the switching point of a capacitive level limit switch |
| 04/02/1997 | EP0766074A2 Fluid level sensor |
| 04/02/1997 | EP0766073A1 Electronic casing |
| 04/02/1997 | EP0766072A1 Electronic casing |
| 04/02/1997 | EP0766071A1 Ultrasonic transducer |
| 04/02/1997 | EP0766070A1 Ultrasonic transducer |
| 04/02/1997 | CN2251130Y Two-colour level meter |
| 04/02/1997 | CN2251129Y Two-colour glass tube level meter without observation blind area |
| 04/01/1997 | US5616929 Ink tank with an ink level detector having a viewing window |