| 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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| 05/28/1986 | EP0182140A1 Hybrid ultrasonic sensor with electronic circuitry |
| 05/27/1986 | US4591946 Capacitance probe for use in a measuring system for location of a liquid level interface |
| 05/27/1986 | US4591839 System for detecting low liquid level and probe therefor |
| 05/27/1986 | US4591838 Spillage detector for liquid chromatography systems |
| 05/27/1986 | US4591719 Apparatus for measuring the level of a liquid in an enclosure |
| 05/27/1986 | US4591073 Apparatus for monitoring particulate material |
| 05/27/1986 | US4590803 Acoustic waveguide monitoring |
| 05/27/1986 | US4590798 Apparatus for detecting oil level in oil tank of small-sized marine craft |
| 05/27/1986 | US4590797 Thermal system for measuring liquid levels |
| 05/22/1986 | WO1986003043A1 Water detector for fuel systems and method for detecting water in same |
| 05/21/1986 | EP0181356A1 Dye laser |
| 05/21/1986 | CN85204188U Reflecting single or double colors fluid level gage with tuo direction light sources |
| 05/20/1986 | US4590575 Dielectric compensated level control system for use in tanks containing substance |
| 05/20/1986 | US4589282 Fine resolution liquid level detector |
| 05/20/1986 | US4589281 Material level detector and control |
| 05/20/1986 | CA1204850A1 Method and apparatus for detecting the presence of liquid |
| 05/13/1986 | US4589077 Liquid level and volume measuring method and apparatus |
| 05/13/1986 | US4587923 Battery cap indicator |
| 05/13/1986 | US4587845 Liquid level sight gauge |
| 05/09/1986 | WO1986002725A1 Liquid level monitoring assemblies |
| 05/07/1986 | EP0180526A2 Device for detecting and controlling the presence of a gaseous fluid in relation to a predetermined level of liquid in a vessel |
| 05/07/1986 | EP0180357A1 Liquid level indicator |
| 05/07/1986 | EP0180071A1 Measuring probe |
| 05/07/1986 | EP0112928B1 Toner level sensor |
| 05/07/1986 | EP0056382B1 Integrity check for ultrasonic fluid interface sensing system |
| 05/07/1986 | CN85202524U Liquid level gage with automatic pretentting |
| 05/06/1986 | CA1204190A1 Microwave sensor for checking the level of the molten metal in continuous casting processes |
| 04/30/1986 | EP0179220A1 Apparatus for measuring the filling level of a liquid in a container |
| 04/29/1986 | US4586033 Fluid detection system |
| 04/24/1986 | WO1986002444A1 Apparatus for magnetic position determination |
| 04/22/1986 | US4584554 Engine oil level detecting device |
| 04/22/1986 | US4583402 Fluid-gauging systems |
| 04/22/1986 | US4583401 Method and apparatus for measuring the level of liquids or agitated charges in vessels |
| 04/22/1986 | US4583293 Liquid level gauge and sampling device |
| 04/15/1986 | US4583085 Liquid level sensor assembly |
| 04/15/1986 | US4582025 Liquid level detector |
| 04/15/1986 | US4581931 Differential level-monitoring float device |
| 04/09/1986 | CN85200987U Alkali supply device for nitrogen analyzer |
| 04/08/1986 | US4580450 Valve with a level gauge for a liquefied carbon dioxide container |
| 04/08/1986 | US4580449 Method and apparatus for determining the surface level of molten metal |
| 04/08/1986 | US4580448 Method and apparatus for ultrasonic measurement of a physical parameter |
| 04/02/1986 | EP0176194A1 Liquid level indicator |
| 04/02/1986 | EP0175904A1 Device for measuring the filling level of liquids |
| 04/01/1986 | US4580052 Nuclear guaging system |
| 04/01/1986 | US4578997 Time-shaped AGC for ultrasonic liquid level meter of the echo-ranging type |
| 04/01/1986 | US4578959 Method and apparatus for detecting and controlling the formation of ice or frost |
| 04/01/1986 | CA1202605A1 Ultrasonic control of filling a container |
| 03/26/1986 | EP0175372A1 Fluid measurement gauge |
| 03/26/1986 | EP0089336B1 Measurement of the filling level |
| 03/25/1986 | US4578357 Stabilized water indicating paste composition |
| 03/25/1986 | CA1202400A1 Probe and drain assembly |
| 03/19/1986 | EP0174333A1 Sensing element for a capacitive level measuring system |
| 03/19/1986 | CN85202103U Condensed water speculum |
| 03/18/1986 | US4576107 Apparatus for detecting the level of particulate solids in a shuttle car |
| 03/18/1986 | CA1202038A1 Flow monitoring method and apparatus |
| 03/12/1986 | EP0174234A1 Coaxial line for a cryogenic device |
| 03/12/1986 | EP0174178A1 Optical fluid level indicator |
| 03/11/1986 | US4574631 Liquid level molded indicating gage portions |
| 03/11/1986 | US4574494 Device for determining the profile of the charging surface of a shaft furnace |
| 03/05/1986 | EP0173067A2 Device for signalling water, especially for oil and petrol tanks |
| 03/04/1986 | US4574328 Sensor for capacitively measuring the level of material in a container |
| 03/04/1986 | CA1201532A1 Liquid volume sensor system |
| 02/25/1986 | US4573128 Digital method for the measurement and control of liquid level in a continuous casting mold |
| 02/25/1986 | US4572120 Separate lubricating system for marine propulsion device |
| 02/25/1986 | US4572097 Oil level detector |
| 02/25/1986 | US4572008 Non-sparkable safety sample weight |
| 02/25/1986 | US4571998 In-ground tank measuring system |
| 02/25/1986 | US4571987 Leak detector |
| 02/25/1986 | CA1200976A1 Molten metal float |
| 02/19/1986 | EP0171581A1 Flood level sensor for fluid filling systems |
| 02/18/1986 | US4570718 Oil level sensor system and method for oil wells |
| 02/18/1986 | US4570484 Liquid measurement system |
| 02/18/1986 | US4570483 Piezo-electric level sensor for internal combustion engine |
| 02/18/1986 | US4570482 Load-sensitive level detecting device |
| 02/18/1986 | US4570477 Leak detecting cable |
| 02/18/1986 | CA1200903A1 Method and apparatus for supervising charges in blast furnace |
| 02/13/1986 | WO1986000987A1 Device for electromagnetic measurement of the filling of metallurgical vessels |
| 02/12/1986 | EP0170754A1 Degasing, cleaning, blocking and recuperating combination with enhanced security for measuring apparatus |
| 02/12/1986 | EP0170730A1 Device for temporarily blocking the measuring sequence of the electric oil-level measurement of an engine, particularly of an internal-combustion engine |
| 02/11/1986 | US4570230 Method of measuring and controlling the level of liquid in a container |
| 02/05/1986 | EP0170058A1 Probe with capacitive sensors |
| 02/04/1986 | US4568874 RF Admittance apparatus and method for monitoring the contents of a pipe |
| 02/04/1986 | US4567762 Thermoelectric level detector and a method for its manufacture |
| 02/04/1986 | US4567761 Device for detecting variations in the height of the free level of a liquid |
| 02/04/1986 | CA1200283A1 High pressure electrical conductivity probe |
| 01/30/1986 | WO1985003360A3 Fiber optic structure and method for making |
| 01/28/1986 | US4567435 Method and apparatus for continuously measuring distance utilizing eddy current and having temperature difference influence elimination |
| 01/28/1986 | US4566343 Sampling and/or measuring apparatus for immersion in molten metal |
| 01/28/1986 | US4566323 Resistance wire, superconductivity, amorphous, alloy |
| 01/28/1986 | US4566322 Apparatus for electrically measuring the level of a liquid in a container, particularly in the gasoline tank of a vehicle |
| 01/28/1986 | US4566321 Microwave tank-contents level measuring assembly with lens-obturated wall-opening |
| 01/28/1986 | US4566308 Portable pressure gauge tester |
| 01/28/1986 | CA1199819A1 Fluidized bed level measurement |
| 01/22/1986 | EP0169175A1 Device for measuring the volume of liquid present in a sealed vessel, particularly for measuring the fuel level in the tank of a motor vehicle |
| 01/22/1986 | EP0168842A2 Float apparatus and method for determining leaks using the apparatus |
| 01/22/1986 | EP0168469A1 Fuel meter for vehicles. |
| 01/22/1986 | EP0168404A1 Fiber optic structure and method for making. |
| 01/21/1986 | US4565942 Energy trapped piezoelectric resonator liquid sensor |
| 01/21/1986 | US4565930 Boiler low water sensing system utilizing energy transfer network means for delay |
| 01/15/1986 | EP0168211A1 Device for detecting the level of a liquid contained in a tank |