| 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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| 11/29/1995 | CN2213983Y Multifunction fluviograph | 
| 11/28/1995 | US5469749 Multiple-function fluid measuring and transmitting apparatus | 
| 11/28/1995 | US5469739 On-line fishing depth indicator with encapsulated components | 
| 11/23/1995 | WO1995031699A1 System and method for sensing material level within a container | 
| 11/23/1995 | WO1995031698A1 Method of determining the level of the contents of sludge pumping vehicles | 
| 11/23/1995 | WO1995031696A1 Position encoder | 
| 11/23/1995 | DE4417311A1 Fluid level measuring probe esp. for heavy oil | 
| 11/23/1995 | CA2190492A1 System and method for sensing material level within a container | 
| 11/22/1995 | EP0683383A1 A damper circuit for a device for indicating the level of a liquid in a tank, particularly for motor vehicles | 
| 11/22/1995 | EP0683353A1 Device for controlling liquid level and driving a pump for its delivery | 
| 11/22/1995 | EP0683304A2 Borehole logging tool | 
| 11/22/1995 | EP0489051B1 Measuring device and process for determining the level in fluid containers, preferably for tank installations. | 
| 11/22/1995 | CN2213329Y Forward read magnetic liquid level gage for constant pressure liquid storage tank | 
| 11/22/1995 | CN1030292C Jig for detecting height of wavy solder surface, method of controlling height of solder surface | 
| 11/15/1995 | EP0681961A1 A method and an apparatus for registering a level of contents | 
| 11/15/1995 | EP0681905A1 Recoating of stereolithographic layers | 
| 11/15/1995 | EP0681904A2 Stereolithographic apparatus with means to measure and control the level of fluid | 
| 11/15/1995 | EP0681686A1 Capacitance-resistance position sensor | 
| 11/15/1995 | CN2212780Y Alarm for water level in boiler | 
| 11/15/1995 | CN2212779Y Liquid level sensor | 
| 11/15/1995 | CN2212775Y Bar-type liquid level and liquid temp transducer | 
| 11/14/1995 | US5465766 Chemical refill system for high purity chemicals | 
| 11/14/1995 | US5465629 Liquid dispensing system with acoustic sensing means | 
| 11/14/1995 | US5465619 For detecting the level of material in a container | 
| 11/12/1995 | CA2148999A1 Liquid level monitoring system for underground storage tanks and method for its installation | 
| 11/09/1995 | WO1995030131A1 A method for the mass determination of the content of pressure containers and a device for executing this method | 
| 11/09/1995 | DE4416225A1 Liquid level float gauge for inflammable liquids | 
| 11/09/1995 | DE4416038A1 Rainwater utilisation device for indoor domestic applications | 
| 11/08/1995 | EP0680935A1 Bed height sensing device for biological reactor | 
| 11/08/1995 | CN2212194Y Liquid surface sensor in pressure container | 
| 11/08/1995 | CN2212193Y Voice identifichtion material position measuring and controlling instrument | 
| 11/08/1995 | CN2212192Y Reflecting metering scale | 
| 11/08/1995 | CN1111355A 电容测量装置 Capacitance measuring apparatus | 
| 11/08/1995 | CN1111346A High pressure, leak resistant, explosionproof capacitance probe | 
| 11/07/1995 | US5463905 Portable non-invasive flowmeter for partially filled pipe | 
| 11/07/1995 | US5463895 Sample pipetting method | 
| 11/06/1995 | CA2144027A1 Bed height sensing device for biological reactor | 
| 11/02/1995 | WO1995029389A1 Piezoelectric sensors | 
| 11/02/1995 | WO1995029388A1 Piezoelectric sensing systems | 
| 11/02/1995 | WO1995029387A1 Powder level indicator | 
| 11/02/1995 | EP0679875A1 Liquid level detector with an immersible probe | 
| 11/02/1995 | EP0552361B1 Tank level gauge of driven sensor type | 
| 11/02/1995 | DE19509847A1 Detecting boundary between two liquid layers medical research | 
| 11/02/1995 | CA2188547A1 Piezoelectric sensing systems | 
| 11/02/1995 | CA2188545A1 Piezoelectric sensors | 
| 11/01/1995 | CN2211595Y Rotary level sensor | 
| 11/01/1995 | CN2211280Y Medical alarm for transfusion | 
| 10/31/1995 | US5463378 Proximity detection system and oscillator, and method of using same | 
| 10/31/1995 | US5463228 Apparatus for the detection of a fluid phase boundary in a transparent measuring tube and for the automatic exact metering of an amount of liquid | 
| 10/26/1995 | WO1995028622A1 Float-controlled level switch with adjustable switching points | 
| 10/26/1995 | WO1995019559A3 Ultrasonic transducer system with temporal crosstalk isolation | 
| 10/26/1995 | DE4413781A1 Determining list of floating and/or immersed devices | 
| 10/25/1995 | CN2211065Y Flexible coding-belt level sensor | 
| 10/25/1995 | CN2211064Y Wireless remote-measuring monitor for the lever of water-tower | 
| 10/24/1995 | US5461321 Apparatus and method for measuring capacitance from the duration of a charge-discharge charge cycle | 
| 10/24/1995 | US5460007 Ice level sensor for an ice maker | 
| 10/24/1995 | CA2108306C High resolution acoustic pulse-echo ranging system | 
| 10/19/1995 | WO1995027985A1 Non-condensable gas tolerant condensing chamber | 
| 10/19/1995 | WO1995027884A1 Process for checking the tolerance of measured values | 
| 10/19/1995 | DE4413311C1 Schwimmergesteuerter Niveau-Schalter (III) mit verstellbaren Schaltpunkten Float type level switch (III) with adjustable switching points | 
| 10/19/1995 | DE4412479A1 Sludge depth and concentration determined by hydrostatic pressure detector assembly | 
| 10/18/1995 | CN1110402A Contact type object detecting head | 
| 10/17/1995 | US5458566 Reservoir volume sensing systems for autologous blood recovery | 
| 10/17/1995 | US5457990 Method and apparatus for determining a fluid level in the vicinity of a transmission line | 
| 10/17/1995 | US5457965 Low refrigerant charge detection system | 
| 10/17/1995 | CA2003742C Monitoring process on machine assemblies with central lubrication in rotary printing presses | 
| 10/12/1995 | DE4412386A1 Conductive level measurement circuit for minimum-maximum controller | 
| 10/12/1995 | DE4412068A1 Servicing batteries esp. for adjusting liquid level of cells of one or more batteries | 
| 10/12/1995 | DE4411961A1 Motor vehicle fuel gauge assembly with variable depth tank mounting | 
| 10/12/1995 | DE4410515A1 Monitor for checking depth of fill of transparent container | 
| 10/11/1995 | EP0676649A1 Radar method and apparatus for range finding | 
| 10/11/1995 | EP0676625A2 Device for measuring liquid levels | 
| 10/11/1995 | EP0676624A2 Ultrasonic fluid level sensing without using a stillwell | 
| 10/11/1995 | EP0676037A1 Device for measuring the level of container contents | 
| 10/11/1995 | EP0676027A1 Determining the amount of working fluid in a refrigeration or heat pump system. | 
| 10/11/1995 | CN2209794Y Plug-in type liquid level sensor | 
| 10/10/1995 | US5457394 Impulse radar studfinder | 
| 10/10/1995 | US5457352 Ultrasonic converter | 
| 10/10/1995 | US5456295 Vehicle transmission oil filling apparatus and method | 
| 10/10/1995 | US5456114 Elastic wave sensing system | 
| 10/10/1995 | US5456108 Baffle assembly for ultrasonic liquid level measuring probe | 
| 10/06/1995 | CA2146188A1 Distance measuring radar process and device | 
| 10/05/1995 | DE19511371A1 Differential pressure or water level measurement device | 
| 10/04/1995 | EP0675344A1 Level indicator | 
| 10/03/1995 | US5454938 Bed height sensing device for biological reactor | 
| 09/28/1995 | WO1995026015A1 Liquid dose dispenser | 
| 09/27/1995 | EP0674157A1 Method for detecting at least one physical quantity | 
| 09/27/1995 | CN2208699Y Integral liquid level display and alarm device for boiler | 
| 09/27/1995 | CN1109164A Improved overflow detection system | 
| 09/26/1995 | US5452611 Ultrasonic level instrument with dual frequency operation | 
| 09/21/1995 | DE4408870A1 Bistable switching contact for external mounting on liquid level pipes | 
| 09/20/1995 | EP0672895A1 Liquid charging method and lens production method | 
| 09/19/1995 | US5452076 Fluid detection system | 
| 09/19/1995 | US5450764 Displacement sensor | 
| 09/14/1995 | DE4407897A1 High frequency sensor with contactless switching and measuring | 
| 09/14/1995 | DE4407823A1 Level measurement appts. | 
| 09/14/1995 | DE4407369A1 Transition time measurement method | 
| 09/13/1995 | CN2207571Y Locomotive water gage | 
| 09/13/1995 | CN2207570Y Overflow alarm of solar water heater | 
| 09/12/1995 | US5450067 Water level detector and indicator system |