| 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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| 11/12/1986 | CA1213970A Ultrasonic measurement |
| 11/11/1986 | US4621929 Fiber optic thermal anemometer |
| 11/11/1986 | US4621527 Flat glass sight gauge |
| 11/11/1986 | US4621526 Container having a device for the electric measurement of the level of a liquid contained within it |
| 11/05/1986 | EP0199904A1 Level-measuring device for liquids, especially H0202 |
| 11/04/1986 | US4621264 Method and apparatus for measuring water level in a well |
| 11/04/1986 | US4620441 Liquid level control |
| 10/29/1986 | EP0198947A1 Liquid level checking system for vehicles |
| 10/28/1986 | US4619140 Circuit arrangement for the electrothermal measurement of level |
| 10/28/1986 | CA1213352A1 Level sensor using sonic methods |
| 10/22/1986 | EP0198731A2 Ultrasonic-wave transducer to get in contact with a high-temperature wall, and its use |
| 10/22/1986 | EP0198117A2 Indicating optical liquid level sensor |
| 10/21/1986 | US4617806 Liquid level control apparatus |
| 10/21/1986 | CA1212995A1 Resin interface detection system |
| 10/15/1986 | EP0197667A1 Electrical-conductivity probe |
| 10/15/1986 | EP0197100A1 Apparatus for magnetic position determination |
| 10/07/1986 | US4615622 Process for detecting resident air in a liquid charged receptacle and apparatus therefor |
| 10/07/1986 | US4615351 Method of and apparatus for monitoring the surface level of material in a vessel |
| 10/07/1986 | US4615305 For a two-cycle internal combustion engine |
| 10/07/1986 | CA1212259A1 Capacitive level gauge |
| 09/30/1986 | US4614114 Measuring device |
| 09/17/1986 | EP0194732A2 Sensor for the measurement of the refractive index of a fluid and/or phase boundary between two fluids by means of visible or invisible light |
| 09/17/1986 | CN85102871A Solid piece material level detecting device |
| 09/16/1986 | US4611489 U-shaped capacitor level gauge |
| 09/09/1986 | US4611287 Fuel volume measuring system for automotive vehicle |
| 09/09/1986 | US4611117 Method and arrangement for the automatic stabilization of a scintillation detector |
| 09/09/1986 | US4610165 Fluid level sensor |
| 09/09/1986 | US4610164 Method of detecting liquid level |
| 09/09/1986 | CA1211003A1 Device for indicating level of liquid contents of a container |
| 09/09/1986 | CA1210957A1 Head for the detection of a liquid level by hydrostatic action |
| 09/03/1986 | EP0193322A2 Fluid level sensor |
| 09/03/1986 | CN86200357U Reflective and transmissive two-coloured liquid level indicator |
| 09/03/1986 | CN86200345U Photoelectric oil level-measuring scale |
| 09/03/1986 | CN86100821A Protecting device for compressor |
| 09/03/1986 | CN85205127U Reflective two-coloured liquid level indicator |
| 09/02/1986 | US4609913 Fluid level sensor |
| 09/02/1986 | US4608864 Device for sampling and measuring the flow rate of a continuously or intermittently circulating liquid |
| 09/02/1986 | CA1210832A1 Engine oil level sensor |
| 09/02/1986 | CA1210609A1 Method and apparatus for measuring a metal melt at the bottom of a container |
| 08/27/1986 | EP0192282A1 Liquid supply holder |
| 08/27/1986 | EP0192043A1 Apparatus for measuring the level of the molten metal in a vessel, especially in a continuous-casting mould |
| 08/26/1986 | US4607834 Adjustable sheet guide |
| 08/20/1986 | EP0191658A1 Liquid level height-measuring apparatus |
| 08/20/1986 | CN85205317U Double-colour reflecting-transmiting liquid level indicator |
| 08/19/1986 | US4606226 Liquid level sensor |
| 08/13/1986 | EP0190474A1 Procedure to measure the level of a liquid by means of elastic waves, and device to carry out such procedure |
| 08/13/1986 | EP0190178A1 Device for electromagnetic measurement of the filling of metallurgical vessels. |
| 08/12/1986 | US4604893 Leak detector |
| 08/12/1986 | CA1209367A1 Immersion measuring probe for use in molten metals |
| 08/05/1986 | US4604092 Liquid drainage system with vertical movable light emitter and detector |
| 08/05/1986 | US4603581 For sensing existance of a substance |
| 08/05/1986 | US4603580 Unicable liquid level sensing system |
| 07/31/1986 | WO1986004409A1 A device for detecting the presence or absence of liquid in a vessel |
| 07/30/1986 | EP0189339A1 Liquid level height-measuring apparatus |
| 07/29/1986 | CA1208453A1 Arrangement and method for liquid level measurement |
| 07/23/1986 | EP0188393A1 Liquid level height-measuring apparatus |
| 07/23/1986 | EP0187993A2 Installation of regulating a casting- and conveying equipmentwhile filling a mould with molten metal |
| 07/23/1986 | EP0120852A4 Fuel gaging system. |
| 07/23/1986 | CN85203491U Transmissive and reflective hydrolgical gage with two colours |
| 07/22/1986 | US4602344 Method and system for measurement of liquid level in a tank |
| 07/22/1986 | US4601306 Apparatus for ascertaining and/or keeping constant the mixing ratio of a liquid mixture |
| 07/22/1986 | US4601201 Liquid level and quantity measuring apparatus |
| 07/22/1986 | US4601200 Measuring apparatus |
| 07/16/1986 | EP0187635A2 Device for level measurement in moulds for continuous casting |
| 07/16/1986 | EP0187334A2 Measuring container for fine grains or powder |
| 07/16/1986 | CN86100127A Procedure to measure the level of a liquid by means of elastic waves, and device to carry out such procedure |
| 07/15/1986 | US4600041 Fuel tank with filling up indicating device for vehicle |
| 07/15/1986 | US4599892 Volume measuring apparatus |
| 07/08/1986 | US4598742 Method and apparatus for monitoring liquid stock in a storage tank |
| 07/08/1986 | US4598733 Apparatus for detecting the volume of blood in a blood reservoir |
| 07/08/1986 | US4598584 Electric measuring converter for level |
| 07/03/1986 | WO1986003832A1 Fibre optic sensor |
| 07/03/1986 | WO1986003800A1 Oil level sensor system and method for oil wells |
| 07/02/1986 | EP0186584A2 Apparatus for the detection of an enclosed electrically-conducting material, and uses of this apparatus |
| 07/02/1986 | CA1206769A Pressure sensor and method of producing same |
| 07/02/1986 | CA1206744A1 Spiral bob |
| 06/25/1986 | EP0185285A2 Liquid level measurement apparatus |
| 06/24/1986 | US4596144 Acoustic ranging system |
| 06/24/1986 | US4596141 Electrically operated oil level gauge |
| 06/18/1986 | EP0184687A2 Level indication for liquid containers |
| 06/18/1986 | CN85204118U Electronic water flow meter |
| 06/18/1986 | CN85203219U Displaying and automatically controlling device for water level of boiler |
| 06/18/1986 | CN85203066U Liquid level indicator with a photoelectrical pick up camera |
| 06/17/1986 | US4595916 Integral water sensing and detecting device |
| 06/17/1986 | US4594905 Liquid analyzer |
| 06/17/1986 | US4594893 Probe for measuring the level of liquid in a tank or pipe |
| 06/17/1986 | US4594892 Capacitance probe for liquid level measuring system |
| 06/17/1986 | US4594891 Resonating rod |
| 06/11/1986 | EP0184497A1 Liquid level measuring probe |
| 06/11/1986 | EP0183721A1 Transfer calibration system |
| 06/10/1986 | US4594584 Device for determining and/or monitoring a predetermined filling level in a container |
| 06/10/1986 | US4593533 Method and apparatus for detecting and controlling the formation of ice or frost |
| 06/10/1986 | US4593477 Control system for a fluidized bed |
| 06/10/1986 | CA1205648A1 Method and apparatus for tank gauging using diode lasers and optical fibres |
| 06/04/1986 | EP0183154A2 Method for the continuous measurement of the degree of filling fluidised-powder apparatuses |
| 06/04/1986 | CN85202562U Opticle fiber liquid level indicator |
| 06/03/1986 | US4593275 Safety device for detecting a conductive liquid |
| 06/03/1986 | US4592231 Device for the electric measurement of a liquid level |
| 06/03/1986 | US4592230 Apparatus for and method of determining the liquid coolant level in a nuclear reactor |
| 05/28/1986 | EP0182758A1 Level sensor |