| 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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| 01/15/1986 | EP0167674A1 Level indicator |
| 01/14/1986 | US4564881 Device for electrically measuring a liquid level |
| 01/14/1986 | US4564834 Thermal liquid level detector |
| 01/14/1986 | US4563896 Gauger's aid for use in sampling bottom sediment conditions in oil storage tanks |
| 01/08/1986 | EP0167505A2 Method and apparatus for level measurement with microwaves |
| 01/08/1986 | EP0167409A2 A level gauge for a liquid container |
| 01/08/1986 | EP0167338A2 Ultrasonic probe |
| 01/08/1986 | EP0167257A1 Boiler water level monitoring |
| 01/07/1986 | US4563313 Humidifier |
| 01/07/1986 | US4562734 System for measuring quantity of liquid contained in tank |
| 01/07/1986 | US4562733 Device for the electric measurement of a liquid level |
| 01/07/1986 | US4562732 Device for detecting liquid amount in a vessel |
| 01/07/1986 | EP0112884A4 Flow monitoring apparatus. |
| 01/02/1986 | EP0166034A1 Method and arrangement for electrothermal, ambient temperature compensated level measurement |
| 01/02/1986 | EP0165985A1 Flat glass sight gauge |
| 12/31/1985 | US4562431 Fuel filter unit with water content indicator |
| 12/27/1985 | EP0165852A1 Apparatus for the ultrasonic measurement of the liquid level and/or volume in a container |
| 12/24/1985 | US4560986 Comparative variable resistance position indicator |
| 12/24/1985 | US4559979 Ultrasound level detector |
| 12/24/1985 | US4559813 System and device for detecting the forming of depot |
| 12/24/1985 | CA1198293A1 Method of detecting the level of a melt in a continuous-casting mold |
| 12/18/1985 | EP0164831A2 Fluidic level control system |
| 12/18/1985 | EP0164679A2 Apparatus for fluid level sensing |
| 12/18/1985 | EP0164559A1 Device for measuring the liquid level in cryogenic containers |
| 12/17/1985 | US4558714 Resin interface detection system |
| 12/17/1985 | US4558520 Self-wiping universal liquid level gauge |
| 12/17/1985 | CA1198189A1 Humidifier high water sensor apparatus |
| 12/17/1985 | CA1197990A1 Water level gauge with fault detector |
| 12/11/1985 | EP0163645A1 Optical probe to measure the depth of a cavity |
| 12/10/1985 | US4558456 Apparatus for monitoring the level of liquid in a tank or reservoir |
| 12/10/1985 | US4557216 For detecting the liquid level in a container for liquids |
| 12/10/1985 | US4557144 Electric level sensor for motor vehicle fuel tanks |
| 12/04/1985 | EP0163500A2 Improvements in liquid level indicators for vehicle hydraulic systems |
| 12/04/1985 | EP0052609B1 Apparatus for indicating quantity of liquified gas contained in a storage container |
| 12/03/1985 | US4555941 Capacitance-type material level indicator |
| 12/03/1985 | CA1197591A1 Method and apparatus for detecting molten metal surface level in a mold |
| 11/27/1985 | EP0162821A1 Method and apparatus for measuring the level of a fluent material in a container |
| 11/27/1985 | EP0162447A2 Apparatus for detecting the volume of blood in a blood reservoir |
| 11/26/1985 | US4554831 Arrangement and method for liquid level measurement |
| 11/26/1985 | US4554830 Level detection head for hydrostatic effect with protection |
| 11/21/1985 | WO1985005177A1 Transfer calibration system |
| 11/19/1985 | US4554494 Fluid level gauge having magnetic sensor |
| 11/19/1985 | US4553434 Capacitive level gauge |
| 11/19/1985 | CA1197003A1 Ultrasonic level detector |
| 11/19/1985 | CA1196802A1 Method and apparatus for measuring pressure, more particularly that of a fluid |
| 11/13/1985 | EP0161042A2 Self-fill system |
| 11/13/1985 | EP0160646A1 Water level monitor and/or alarm system for bilges |
| 11/12/1985 | US4553216 Liquid storage gauging method and apparatus |
| 11/12/1985 | US4552090 Bulk material container with a rigid follower |
| 11/10/1985 | CN85200077U Equal-pressure measuring device for indicating liquid level |
| 11/07/1985 | WO1985004990A1 Dye laser |
| 11/05/1985 | USRE32019 Methods of and/or means for indicating the levels of liquids |
| 11/05/1985 | US4551785 Capacitive sensor |
| 11/05/1985 | US4551719 Oil field lease management and security system and method therefor |
| 11/05/1985 | US4550602 Liquid level marker for container |
| 11/05/1985 | US4550600 Liquid level gauge |
| 10/30/1985 | EP0159480A1 Improvements in data entry systems |
| 10/30/1985 | EP0159348A1 Molten metal filtration indicator |
| 10/30/1985 | EP0076288B1 An arrangement for the distribution and/or extraction of signals |
| 10/29/1985 | US4550261 Fluid level sensor circuitry |
| 10/29/1985 | US4549434 Pressure level sensor |
| 10/23/1985 | EP0159263A1 Method and apparatus for controlling the liquid level in a tank |
| 10/23/1985 | EP0159149A1 Water heating vessel having a water level indicator |
| 10/22/1985 | US4549245 Capacitance-type material level probe and method of manufacture |
| 10/22/1985 | US4549171 Floating oil leak detector |
| 10/22/1985 | US4549164 Liquid volume indicator |
| 10/22/1985 | US4548161 Milk weight metering method and apparatus |
| 10/22/1985 | CA1195529A1 Apparatus and method for fluid level measurement |
| 10/16/1985 | EP0158142A2 Device for ascertaining and/or keeping the mixing ratio of a liquid mixture constant |
| 10/15/1985 | US4547768 Toilet reservoir fill alarm |
| 10/15/1985 | US4547169 Conductive fluid activated devices |
| 10/09/1985 | EP0157255A1 Apparatus for controlling the liquid-metal level in a continuous casting mould |
| 10/09/1985 | EP0156796A1 Container contents measuring apparatus |
| 10/08/1985 | US4545245 Liquid level sensor using sonic methods |
| 10/01/1985 | US4545020 Fuel gaging system |
| 10/01/1985 | US4544880 Microwave probe for measurement of dielectric constants |
| 10/01/1985 | US4544840 Fiber optic fluid impurity detector |
| 10/01/1985 | US4544140 Device for measuring the level of the interface between a slag layer and a bath of molten metal in a metallurgical vessel |
| 10/01/1985 | US4543823 Microwave probe for detecting oil level |
| 10/01/1985 | US4543730 Liquid level indicator for a tilted container |
| 09/24/1985 | CA1194019A1 Radiator cap probe |
| 09/18/1985 | EP0155179A2 Liquid level and quantity measuring apparatus |
| 09/18/1985 | EP0154716A1 Circuit for electrothermal level measurement with ambient temperature compensation |
| 09/17/1985 | US4541446 In-ground control unit for watering systems |
| 09/17/1985 | US4541285 Method and apparatus for measuring the pressure of a liquid |
| 09/17/1985 | US4541276 Portable, liquid oxygen therapy unit |
| 09/17/1985 | CA1193693A1 Dry battery driven liquid pump |
| 09/17/1985 | CA1193466A2 Liquid level indicator |
| 09/12/1985 | WO1985004008A1 Sensing element for a capacitive level measuring system |
| 09/10/1985 | US4540981 Method and apparatus for detecting the presence of liquid |
| 09/10/1985 | US4540891 High current float switch |
| 09/04/1985 | EP0153918A1 Method for determining the melt level in a reciprocating mould of a continuous-casting plant, and device for carrying out the method |
| 09/04/1985 | EP0153721A1 Looking glass for a liquid-level indicator |
| 09/03/1985 | US4539547 Low liquid level sensing and warning circuit |
| 09/03/1985 | US4539270 Battery cap indicator with levered float |
| 09/03/1985 | US4538307 Flood level sensor for fluid filling systems |
| 08/28/1985 | EP0152644A2 Gauge for measuring the level or the conductance of a liquid present between two electrodes. |
| 08/27/1985 | US4537232 Fluid discriminating apparatus |
| 08/27/1985 | US4537150 For identifying a cow in a herd and correlating its milk |
| 08/27/1985 | US4537070 Magnetically responsive circuit-element module for liquid-level monitoring and probe therefrom |