| 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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| 04/02/1985 | US4508970 Melt level sensing system and method |
| 04/02/1985 | US4507961 Level gauge for liquefied gas tanks, with dial-and-hand indicator actuated by an axially movable drive coupled with a single internal magnet |
| 04/02/1985 | CA1184777A1 Liquid level measuring device |
| 03/28/1985 | WO1985001345A1 Measurement scale for measuring the head of gravitational flow lines |
| 03/27/1985 | EP0135423A1 Distance measuring system |
| 03/27/1985 | EP0135350A1 Systems for transmitting light |
| 03/26/1985 | US4507583 Piezo-electric level detector |
| 03/26/1985 | US4507521 High pressure electrical conductivity probe |
| 03/26/1985 | US4506804 Volume detecting device |
| 03/19/1985 | US4506258 System for detecting low liquid level and probe therefor |
| 03/05/1985 | US4503433 Range measurement by means of frequency modulated continuous wave radar |
| 03/05/1985 | US4503384 Microwave probe for measurement of dielectric constants |
| 03/05/1985 | US4503383 Device for detecting an interface between two fluids |
| 03/05/1985 | US4503330 Determining level or tilt angle of solids in a rotatable chamber |
| 03/05/1985 | US4502515 Dry battery driven liquid pump |
| 02/26/1985 | US4502126 Apparatus for detecting an amount of liquid remained in a vessel |
| 02/26/1985 | US4502124 Process for determination of the stored quantity of operating fluids for automotive vehicles, and circuit for conducting the process |
| 02/26/1985 | US4501146 Detection of free liquid in containers of solidified radioactive waste |
| 02/19/1985 | US4499767 Capacitance-type material level indicator |
| 02/19/1985 | US4499766 Capacitance-type material level indicator |
| 02/19/1985 | US4499765 Device for the determination and/or control of a certain charging level in a container |
| 02/19/1985 | US4499641 Method of manufacturing capacitance-type material level indicator probe |
| 02/19/1985 | US4499640 Method of manufacturing capacitance-type material level indicator probe |
| 02/13/1985 | EP0133069A1 Oil level gauging device, particularly for an automatic gear box |
| 02/12/1985 | US4498338 Procedure and means for measuring the coal content in quick ash |
| 02/05/1985 | US4497205 Method and apparatus for automatically sensing the level of a liquid in a reservoir |
| 02/05/1985 | US4497204 Liquid gauge |
| 02/05/1985 | CA1182188A1 Capacitance sensor |
| 01/31/1985 | WO1985000301A1 Wettable devices operational with aqueous liquids |
| 01/29/1985 | US4497033 Multiplexed arrangement for connecting a plurality of transducers to a field interface device at a storage tank |
| 01/29/1985 | US4495807 Precision liquid level sensor |
| 01/29/1985 | CA1181826A1 Rotating field electromagnetic inductor and continuous flow metal ingot mould using said inductor |
| 01/23/1985 | EP0132233A1 Thermochromatic method for the level determination of liquids or liquefied gases in metallic containers, and apparatus therefor |
| 01/23/1985 | EP0132209A1 Device for taking samples and for measuring flow of a liquid |
| 01/23/1985 | EP0131979A2 Method of regulating a molten metal bath level |
| 01/22/1985 | US4495388 Bin level detector and filling switch |
| 01/09/1985 | EP0130675A2 Chemical composition for the detection of water and probe containing it |
| 01/09/1985 | EP0130635A1 Method of measuring and regulating the filling level of materials in a container |
| 01/09/1985 | EP0130455A2 Process for detecting resident air in a liquid charged receptacle and apparatus therefor |
| 01/09/1985 | EP0130291A1 Container with an equipment for electrically measuring the level or the liquid contained therein |
| 01/08/1985 | US4492017 Method of assembling a rigid wire for driven rotational movement |
| 01/02/1985 | EP0129650A1 Device for electrically measuring the level of a liquid |
| 01/01/1985 | US4491016 Method and apparatus for measuring the pressure of a fluid |
| 12/27/1984 | EP0129261A1 System and device for detecting the deposition of particles |
| 12/27/1984 | EP0129120A1 Liquid level sensor |
| 12/27/1984 | EP0129009A1 Device for electrically measuring the level of a liquid |
| 12/25/1984 | US4489602 Rod-like apparatus for determining the existing level of liquids in containers, channels, or the like |
| 12/25/1984 | US4489601 Apparatus and method of measuring the level of a liquid |
| 12/19/1984 | EP0128708A1 Liquid presence sensors |
| 12/18/1984 | US4489224 Fluid level indicator |
| 12/18/1984 | CA1179562A1 Boiler low water level sensing device |
| 12/18/1984 | CA1179520A1 Measuring instrument |
| 12/11/1984 | US4487066 System for sensing and signalling the amount of fuel in a vehicle tank, particularly aircraft tank |
| 12/11/1984 | US4487065 Storage tank level monitoring apparatus and method therefor |
| 12/11/1984 | CA1179120A1 Liquid level float gauge calibration means |
| 12/06/1984 | WO1984004837A1 Automatic liquid level indicator and alarm system |
| 12/05/1984 | EP0127418A2 Equipment for the measurement of fluorescence, turbidity, luminescence, or absorption |
| 12/04/1984 | US4485763 Method for direct measurement of the amount of milk obtained from a cow by a milking system during milking |
| 12/04/1984 | US4485673 Two-wire level measuring instrument |
| 12/04/1984 | US4485640 Device for automatically regulating the superfluid helium level in a tank |
| 11/27/1984 | US4484878 In an extruding device |
| 11/27/1984 | US4484862 Submersible pumps |
| 11/27/1984 | CA1178457A1 Multi-capacitor fluid level sensor |
| 11/21/1984 | EP0125628A2 Resin interface detection system |
| 11/20/1984 | US4483463 Apparatus for dispensing very small quantities of liquid |
| 11/20/1984 | US4483193 Magnetic level indicators |
| 11/20/1984 | US4483192 Water level indicator for nuclear reactor vessel |
| 11/20/1984 | CA1178364A1 Device for detecting flooding of a hollow structure |
| 11/13/1984 | US4482891 Robust electronic liquid level gauge |
| 11/13/1984 | US4481811 Measurement of fluid oscillation amplitude |
| 11/13/1984 | CA1177950A1 Apparatus for measuring and indicating the fluid level in vessels |
| 11/08/1984 | WO1984004384A1 Optical probe |
| 11/07/1984 | EP0124415A1 Optical sensor |
| 11/07/1984 | EP0124401A1 A fluid level indicator |
| 11/07/1984 | EP0123779A1 Electric liquid level meter for a liquid in a container, éspecially in a fuel tank |
| 11/06/1984 | US4480470 For a fuel tank |
| 11/06/1984 | US4480469 Adjustable differential fluid level float indicator |
| 11/06/1984 | US4480468 Apparatus for measuring and indicating the fluid level in vessels |
| 11/06/1984 | CA1177549A1 Conductive fluid activated devices |
| 11/06/1984 | CA1177281A1 Liquid level gauge |
| 10/31/1984 | EP0123450A1 Method of measuring and controlling the level of liquid in a container |
| 10/31/1984 | EP0123189A1 Device for indicating the filling level at the location of a sensor |
| 10/30/1984 | US4479915 Float stopper attaching method in liquid level sensor |
| 10/30/1984 | CA1176867A1 Liquid level system |
| 10/25/1984 | WO1984004164A1 Device for measuring the level and the temperature of the filling material in a container |
| 10/25/1984 | WO1984004163A1 Device for displaying the liquid level in a container |
| 10/23/1984 | US4479116 Capacitive type fuel level and impurity indicator |
| 10/23/1984 | US4478628 Method for controlling the level of molten material in a furnace |
| 10/23/1984 | US4478555 Back pressure compensator for apparatus for controlling liquid level _in a reservoir |
| 10/23/1984 | CA1176708A1 Residual ink detection mechanism |
| 10/16/1984 | US4476719 For measuring milk flow |
| 10/16/1984 | US4476714 For a reservoir |
| 10/16/1984 | CA1176074A1 Heated junction thermocouple level measurement apparatus |
| 10/11/1984 | WO1984003942A1 Method and apparatus for measuring the distance to an object |
| 10/11/1984 | WO1984003878A1 Fluid discriminating apparatus |
| 10/10/1984 | EP0120852A1 Fuel gaging system. |
| 10/09/1984 | US4476028 Heater and water probe |
| 10/09/1984 | US4475389 Radiator cap probe |
| 10/09/1984 | US4475290 Stick for a liquid level gauge |
| 10/03/1984 | EP0120040A1 Ultrasonic measurement. |