| 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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| 07/14/1987 | US4679431 Probe assemblies including such mounts |
| 07/14/1987 | US4679430 Ultrasonic liquid interface detector |
| 07/08/1987 | EP0228217A1 Liquid level detection |
| 07/08/1987 | EP0228173A1 Apparatus for indicating fluid level |
| 07/08/1987 | EP0228100A1 Milkmeter for determining the weight of the quantity of milk issued by a cow during milking |
| 07/08/1987 | EP0228098A1 A reservoir filling arrangement |
| 07/08/1987 | EP0227882A1 Electrical level sensor |
| 07/08/1987 | CN86208434U Automatic water-level-controlling instrument for boiler |
| 07/08/1987 | CN85201151U Stuff level meter with microcomputer |
| 07/08/1987 | CN85109432A Oil quantity indicator for cylindrical gasoline tank installed horizontally |
| 07/07/1987 | US4678326 Apparatus for the measurement of fluorescence, turbidity, luminescence or absorption |
| 07/01/1987 | EP0226806A1 Method and device for measuring the top level in a pressurized container of a boiling-water reactor |
| 06/30/1987 | US4677305 Opto-acoustic fuel quantity gauging system |
| 06/30/1987 | US4676102 Device for indicating the quantity of a liquid in a reservoir and reservoir provded with such a device |
| 06/30/1987 | US4676101 Capacitance-type material level indicator |
| 06/30/1987 | US4676100 Capacitance-type material level indicator |
| 06/30/1987 | US4676099 Suspended-cable apparatus for measuring a preselected condition of material in a vessel |
| 06/30/1987 | US4676098 Vessel for bulk materials |
| 06/30/1987 | CA1223460A1 Liquid level and quantity measuring apparatus |
| 06/23/1987 | US4675854 Sonic or ultrasonic distance measuring device |
| 06/23/1987 | US4675674 Arrangement for the distribution and/or extraction of signals |
| 06/23/1987 | US4675660 Container liquid level sensing utilizing a filling tube |
| 06/23/1987 | US4674329 Gauge for measuring the level or the conductance of a liquid present between two electrodes |
| 06/18/1987 | WO1987003680A1 Improvements made in gasoline marker |
| 06/18/1987 | WO1987003679A1 Fluid volume measurement device |
| 06/16/1987 | US4673927 Apparatus for detecting and controlling the level of a gaseous fluid |
| 06/16/1987 | US4673819 Sensing probe for sludge detectors |
| 06/16/1987 | US4673008 System for charging containers with solids suspended in a carrier fluid |
| 06/16/1987 | US4672842 System and method for automatically monitoring liquid volume changes in storage tanks |
| 06/16/1987 | EP0148188A4 Wettable devices operational with aqueous liquids. |
| 06/16/1987 | EP0102390B1 Fluid level sensing apparatus |
| 06/10/1987 | EP0224874A1 Method and device for detecting liquid level |
| 06/10/1987 | EP0224513A1 Optical liquid detector |
| 06/09/1987 | US4671121 For a fuel tank |
| 06/09/1987 | US4671110 Level sensing device |
| 06/09/1987 | US4671106 Fuel energy quantification system |
| 06/04/1987 | DE3633086A1 Device for testing bottles |
| 06/03/1987 | EP0224323A2 Coolant condition sensor apparatus |
| 06/03/1987 | EP0223901A1 Flat inductive level detector for liquid metals |
| 06/03/1987 | CN86203418U Penetrative liquid level indicator |
| 06/03/1987 | CN85103379A Measuring method for fluid substance level in container and its equipment |
| 06/02/1987 | US4670754 Microwave tank-contents level measuring assembly with a phase controlled lens |
| 06/02/1987 | US4670660 Optical liquid level indicator and method |
| 06/02/1987 | US4669309 Tank contents gauge |
| 06/02/1987 | CA1222395A1 Fiber optic level alarm |
| 05/27/1987 | EP0223751A2 Liquid level sensor, used in an automatic station for preparing immunologic dosages |
| 05/27/1987 | EP0223048A1 Measuring arrangement for measuring the change of a quantity of fluid, especially of the quantity of oil in an internal-combustion engine |
| 05/27/1987 | DE3541496A1 Instrument for measuring the fuel-oil level in fuel-oil tanks |
| 05/27/1987 | CN86204807U Double groove glass plate for water level meter |
| 05/27/1987 | CN86201187U Monodirectional reflection type colored glass plate for water level gauge |
| 05/26/1987 | US4668870 Refrigerant level sensor in receiver tank |
| 05/20/1987 | EP0222627A1 Device for detecting the imminent depletion of the gas in a liquefied-gas container, and gas lighter equipped with such a device |
| 05/20/1987 | EP0222037A1 Improved digital method for the measurement and control of liquid level in a continuous casting mold |
| 05/20/1987 | CN86205033U Microprocessor liquid level automatic recorder |
| 05/19/1987 | US4665808 Coffee percolator |
| 05/19/1987 | US4665746 Liquid level measuring apparatus and method |
| 05/19/1987 | CA1222039A1 Boiler low water sensing system utilizing energy transfer network means for delay |
| 05/12/1987 | US4665403 Method and apparatus for level measurement with microwaves |
| 05/12/1987 | US4665391 Empty container detector |
| 05/07/1987 | DE3539308A1 Sensor for measuring the level of a liquid |
| 05/06/1987 | EP0220915A1 Toner recovery device |
| 05/06/1987 | EP0220618A2 Device for automatically limiting a cryogenic fluid filling level |
| 05/06/1987 | EP0220499A2 Device for determining the filling level in a container |
| 05/06/1987 | EP0220498A2 Device for determining the filling level in a container, and container with such a device |
| 05/05/1987 | US4662232 Coolant condition sensor apparatus |
| 05/05/1987 | CA1221438A1 Method of an apparatus for monitoring changes in surface level of a material in a container |
| 04/30/1987 | DE3537811A1 Filling level measurement for liquid metals |
| 04/28/1987 | US4661817 Method and apparatus for measuring the distance to an object |
| 04/23/1987 | DE3632739A1 Magnetically operable potentiometer |
| 04/21/1987 | US4660026 Fluid state detector |
| 04/21/1987 | US4658834 Medical apparatus for monitoring body liquid discharge |
| 04/21/1987 | US4658462 Oil reservoir dipstick wiper |
| 04/14/1987 | US4658149 Method and apparatus for measuring the depth of a flowing liquid |
| 04/09/1987 | DE3542181A1 Device for contents-level measurement in a container |
| 04/09/1987 | DE3535624A1 Float for liquid level display device |
| 04/08/1987 | EP0217706A2 Method for the measurement of the local void rate in a pipe transporting a fluid, and arrangement for carrying out this method |
| 04/07/1987 | US4656464 Liquid level detector |
| 04/07/1987 | US4656384 Ultrasonic detection sensor in hybrid structure with appertaining electronic circuit |
| 04/07/1987 | US4655079 Using amorphous zirconium, ruthenium, and rhodium alloy |
| 04/01/1987 | EP0216737A2 Electric fuel gauge for motor vehicle tanks, particularly for tanks of plastics material |
| 04/01/1987 | EP0216474A2 Probe for measuring and/or for exercising a control in dependence upon the value of a characteristic of a material, and method of using said probe |
| 04/01/1987 | CN86105889A Liquid delivery nozzle |
| 03/31/1987 | US4654646 Modular liquid level sensor having integral electronics |
| 03/31/1987 | US4654535 Meniscus position detector with detector at the focal plane of the lens formed by tube and liquid |
| 03/31/1987 | US4653423 Automatic dishwasher condition indicator |
| 03/31/1987 | US4653322 Remote level measurement in a solid-liquid system |
| 03/31/1987 | CA1219725A1 Process and apparatus of automatically controlling changes of surface level of a melt |
| 03/26/1987 | WO1987001801A1 Device for the detection of an imminent running out of gas of a liquified gas tank, and gas lighter fitted with said device |
| 03/25/1987 | EP0215631A2 Liquid delivery nozzle |
| 03/25/1987 | EP0215186A1 Suspended-cable apparatus for measuring a preselected condition of material in a vessel |
| 03/24/1987 | US4651800 Level meter in a mold for continuous casting |
| 03/19/1987 | DE3533070A1 Bunker with filling-level indicator |
| 03/18/1987 | EP0214801A1 A method of monitoring the liquid contents of a container vessel, monitoring apparatus for use in such method, and an installation including such apparatus |
| 03/18/1987 | EP0138940B1 Method and apparatus for measuring the distance to an object |
| 03/17/1987 | US4650992 Optical sensor constituting a light transmissive medium with luminescent particles |
| 03/17/1987 | US4649968 Automatic precision liquid loading control system |
| 03/17/1987 | US4649946 Pipet cleaning apparatus |
| 03/17/1987 | US4649898 Apparatus for controlling condensate level in steam retort |
| 03/17/1987 | US4649746 Liquid level indicator |
| 03/11/1987 | EP0213269A1 Level-monitoring system |