| 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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| 05/01/1984 | US4446562 Method and apparatus for measuring crucible level of molten metal |
| 05/01/1984 | US4445370 Oil to gasoline proportioning device for two cycle engines |
| 05/01/1984 | US4445363 Device for detecting flooding of a hollow structure |
| 05/01/1984 | CA1166475A1 Liquid sight monitor |
| 04/25/1984 | EP0106737A2 Probe and drain assembly |
| 04/25/1984 | EP0106677A2 Tank gauging system and methods |
| 04/25/1984 | EP0106012A1 Equipment for the electric measurement of a liquid level |
| 04/25/1984 | EP0106008A1 Cooling-water container for vehicles made from a thermoplastic material |
| 04/24/1984 | US4444051 Electronic liquid level gauge |
| 04/17/1984 | US4443792 Electromagnetic position detector employing fast fourier transform analysis |
| 04/17/1984 | US4443702 Hand operated level detector |
| 04/17/1984 | US4443699 Fluid level measuring device with linear, high resolution output |
| 04/17/1984 | CA1165836A1 Liquid level sensing circuitry |
| 04/17/1984 | CA1165835A1 Conductive fluid detecting method and apparatus |
| 04/17/1984 | CA1165834A1 Liquid level sensing circuitry |
| 04/17/1984 | CA1165590A1 Differential radiation detection apparatus |
| 04/12/1984 | WO1984001428A1 Fuel gaging system |
| 04/10/1984 | US4442389 Apparatus for measuring a metal surface position |
| 04/10/1984 | US4442357 Differential radiation detection apparatus |
| 04/10/1984 | US4441541 Method of and apparatus for determining the melt level in a continuous-casting mold |
| 04/10/1984 | US4441364 Liquid-level transducer/indicator |
| 04/10/1984 | CA1165202A1 Apparatus for monitoring particulate materials |
| 04/03/1984 | US4440717 Heated junction thermocouple level measurement apparatus |
| 04/03/1984 | US4440188 Process and devices for controlling the level of a liquid |
| 04/03/1984 | US4440022 Liquid-level detection |
| 03/29/1984 | WO1984001233A1 Ultrasonic measurement |
| 03/29/1984 | WO1984001216A1 A device for registration of level, transition zones and temperature |
| 03/27/1984 | CA1164545A1 Liquid gaging system compatible with multiple characterization of each sensor |
| 03/27/1984 | CA1164239A1 Liquid gaging system null balance circuitry |
| 03/21/1984 | EP0103516A1 Liquid supply apparatus with level control, and its use in a washing machine |
| 03/21/1984 | EP0103321A1 Capacitive level gauge |
| 03/20/1984 | US4437497 Ultrasonic control of filling a container |
| 03/20/1984 | CA1163826A1 Capacitive level sensing device |
| 03/14/1984 | EP0102678A2 Liquid level sensing probe |
| 03/14/1984 | EP0102390A1 Fluid level sensing apparatus. |
| 03/13/1984 | US4437162 Residual liquid meter using computer responsive to measurements of liquid level and flow |
| 03/13/1984 | US4437091 Fluid-quantity alarming devices for the master cylinder |
| 03/07/1984 | EP0102102A1 A method and apparatus for tank gauging using diode lasers and optical fibres |
| 03/07/1984 | EP0101998A1 Fuel volume measuring system for automotive vehicle |
| 03/06/1984 | US4434657 Liquid quantity measuring apparatus |
| 03/01/1984 | WO1984000811A1 Optical detection device for detecting a liquid level |
| 02/29/1984 | EP0101580A1 Capacitance-type material level indicator |
| 02/28/1984 | US4433577 Apparatus for metering liquid flow |
| 02/22/1984 | EP0101219A1 Method and apparatus for supervising charges in blast furnace |
| 02/21/1984 | US4432238 Capacitive pressure transducer |
| 02/21/1984 | US4432231 Ultrasonic level detector |
| 02/21/1984 | CA1162626A1 Sensor for detecting the level of liquid in a tank |
| 02/16/1984 | WO1984000607A1 An ultrasonic apparatus for measuring product level in tanks or similar storerooms |
| 02/15/1984 | EP0100564A1 Level measuring device for dielectric liquids, comprising electrodes which form a capacitor |
| 02/15/1984 | EP0100320A1 Receptacle for urological use |
| 02/08/1984 | EP0100225A1 Liquid level gauges |
| 02/07/1984 | US4430212 Volumetric filter for liquid level measurement devices |
| 02/07/1984 | CA1161666A1 Liquid level indicator apparatus |
| 02/02/1984 | WO1984000425A1 Toner level sensor |
| 01/31/1984 | US4429401 Molten-metal liquid level sensor |
| 01/31/1984 | US4428239 Differential pressure measuring apparatus |
| 01/31/1984 | US4428233 Gauge for measuring depth of flowing fluid |
| 01/31/1984 | US4428232 Capacitance liquid level detector |
| 01/31/1984 | CA1161412A1 Liquid level indicator |
| 01/24/1984 | US4428026 For measurement of the level of conductive materials in a vessel |
| 01/24/1984 | US4427132 Liquid storage and measurement system |
| 01/19/1984 | WO1984000210A1 Ultrasonic level detector |
| 01/19/1984 | WO1984000139A1 Flow monitoring method and apparatus |
| 01/17/1984 | US4425796 Hermetically sealed tank gauge apparatus |
| 01/17/1984 | US4425795 Device for the electric monitoring of the level of a liquid contained in a container |
| 01/17/1984 | US4425794 Liquid level indicator |
| 01/11/1984 | EP0098208A1 Device for measuring the water level in a closed space |
| 01/10/1984 | CA1160346A1 Liquid level recorder apparatus and method for storing level differences in memory |
| 01/04/1984 | EP0097385A1 Measuring apparatus |
| 01/03/1984 | US4423629 Method and apparatus for sensing liquid level |
| 01/03/1984 | US4423628 Method and apparatus for monitoring the length of a liquid column |
| 01/03/1984 | CA1159923A1 Slag level indicator for metallurgic vessels |
| 12/27/1983 | US4422328 Liquid level sensor |
| 12/27/1983 | US4422327 Liquid level indicator apparatus |
| 12/27/1983 | US4422326 Method of ascertaining the state inside melting furnace for radioactive waste |
| 12/27/1983 | US4422204 Apparatus for cleaning a dipstick |
| 12/21/1983 | EP0096432A1 Level measuring instrument |
| 12/20/1983 | US4420976 Multiplexed true mass gaging system |
| 12/20/1983 | CA1158832A1 Method of, and arrangement for, preventing slag from penetrating into a continuous casting mould during continuous casting |
| 12/13/1983 | US4420810 Apparatus for operating a motor driven device and testing state of series limit switch over same two-wire circuit |
| 12/13/1983 | US4420250 Arrangement for measuring the bath level in a continuous casting apparatus |
| 12/13/1983 | US4419781 Dipstick wiper apparatus |
| 12/06/1983 | US4418571 Liquid level measuring system |
| 12/06/1983 | US4418570 Ice thickness inductor probe |
| 12/06/1983 | US4418569 Device for the capacitive measurement of the filling level of fluid to a container |
| 12/06/1983 | CA1158279A1 Tank for transporting liquid material |
| 11/29/1983 | US4418340 Liquid level indicator in a cylindrical gasoline tank of the horizontal type |
| 11/29/1983 | US4418035 Coolant condition monitor for nuclear power reactor |
| 11/29/1983 | US4417473 Multi-capacitor fluid level sensor |
| 11/29/1983 | US4417472 Fluid level sensor |
| 11/22/1983 | US4417232 Liquid volume indicator |
| 11/22/1983 | US4416153 Method of compensating a thermistor |
| 11/16/1983 | EP0094315A2 Apparatus for measuring and displaying a level and/or other analogous characteristic of a liquid in a reservoir, particularly of oil in an engine crank-case of an automotive vehicle |
| 11/16/1983 | EP0094298A2 Method and apparatus for measuring the liquid level in a vehicle tank |
| 11/15/1983 | US4415886 Residual ink detection mechanism |
| 11/15/1983 | US4415011 Sample collector |
| 11/15/1983 | US4414849 Apparatus and a method for indicating variations in acoustic properties on an interface |
| 11/15/1983 | CA1156853A1 Length and temperature measuring apparatus for tank installations |
| 11/09/1983 | EP0093505A1 Method of measuring fluid oscillation amplitude |
| 11/09/1983 | EP0093188A1 Device for data registration, in particular for discrete registration of fluid levels |