| 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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| 10/02/1984 | US4475083 Method and apparatus for electromagnetically measuring parameters of electrically conductive high temperature materials |
| 10/02/1984 | US4474063 Measuring amount of bulk materials contained in storage tanks |
| 10/02/1984 | US4474061 For measuring the volume of gases in a rigid-walled container |
| 09/26/1984 | EP0119790A1 Liquid level monitoring |
| 09/26/1984 | EP0119671A1 Device for wiping off an oil dip stick or a similar oblong object |
| 09/25/1984 | US4473730 Liquid-level detection switch |
| 09/25/1984 | US4472969 Probe for monitoring the level of liquid in a container |
| 09/25/1984 | US4472968 Capacitive fluid-gauging probes and systems |
| 09/25/1984 | CA1174874A1 Water level indicator having a remote and a local readout display |
| 09/25/1984 | CA1174869A1 Liquid level indicator |
| 09/19/1984 | EP0119072A2 Device for indicating level of liquid contents on a container |
| 09/19/1984 | EP0118523A1 A device for registration of level, transition zones and temperature |
| 09/18/1984 | US4471656 Apparatus for fluid mass measurement |
| 09/13/1984 | WO1984003488A1 Oil field lease management and security system and method therefor |
| 09/11/1984 | US4471223 Level and interface detection |
| 09/11/1984 | US4470446 Method and apparatus for detecting molten metal surface level in a mold |
| 09/11/1984 | US4470301 Probe and drain assembly for fuel oil/water separator |
| 09/11/1984 | US4470300 Apparatus for and method of determining a capacitance |
| 09/11/1984 | US4470299 Ultrasonic liquid level meter |
| 09/11/1984 | US4470296 Fuel gauge for an automotive vehicle |
| 09/11/1984 | CA1174322A1 Capacitance circuit for level measurement |
| 09/11/1984 | CA1174078A1 Device for determining and displaying respectively the degree of filling and/or the kind of filler in a liquid gas tank, particularly a lpg tank in cars |
| 09/05/1984 | EP0117574A1 A method and apparatus for optical tank gauging |
| 09/04/1984 | US4470008 Capacitance sensor |
| 09/04/1984 | US4468859 Liquid depth measuring device |
| 08/30/1984 | WO1984003355A1 Rf admittance apparatus and method for monitoring the contents of a pipe |
| 08/28/1984 | US4468567 Liquid level detecting device and method for producing the same |
| 08/28/1984 | US4468095 Sight glass assembly |
| 08/28/1984 | US4467844 Flow monitoring method and apparatus |
| 08/28/1984 | US4467647 Direct reading tank gauge |
| 08/28/1984 | US4467646 Device for the capacitive measurement of levels |
| 08/21/1984 | US4466747 Ash level meter for a fixed-bed coal gasifier |
| 08/21/1984 | US4466284 Fine resolution liquid level detector |
| 08/21/1984 | US4466282 Device for electrically monitoring the level of a liquid present in a container |
| 08/16/1984 | WO1984003143A1 Optical probe to measure the depth of a cavity |
| 08/15/1984 | EP0115494A1 Optical detection device for detecting a liquid level |
| 08/14/1984 | US4465088 Construction of low water level sensing device for hot water boiler |
| 08/08/1984 | EP0115258A1 Method and apparatus for measuring the remaining amount of metal melt at the bottom of a container |
| 08/08/1984 | EP0115106A1 Boiler low water cut-off |
| 08/08/1984 | EP0115025A2 Optical sensor |
| 08/07/1984 | US4463604 Liquid quantity detecting apparatus |
| 08/07/1984 | CA1172347A1 Ultrasonic sensing |
| 08/01/1984 | EP0114408A2 Process for detecting the level of sludge, especially in settling pools of sewage treatment plants, and device for carrying out the process |
| 07/31/1984 | US4462458 Electromagnetic inductor with a rotating field and apparatus for the continuous casting of metal for its use |
| 07/31/1984 | US4462258 Pressure sensor and method of producing same |
| 07/25/1984 | EP0114089A2 Measuring the draft of a vessel |
| 07/25/1984 | EP0114026A1 Replaceable container for a liquid-soap dispenser |
| 07/25/1984 | EP0113743A1 An ultrasonic apparatus for measuring product level in tanks or similar storerooms |
| 07/24/1984 | US4461576 Optical measuring system |
| 07/24/1984 | US4461175 Liquid level scale changeover measuring apparatus |
| 07/17/1984 | US4460031 Arrangement for preventing slag from penetrating into a continuous casting mould during continuous casting |
| 07/11/1984 | EP0112928A1 Toner level sensor |
| 07/11/1984 | EP0112884A1 Flow monitoring apparatus. |
| 07/11/1984 | EP0112867A1 Ultrasonic level detector |
| 07/11/1984 | EP0112835A1 Fluid level detection and monitoring system |
| 07/10/1984 | US4459584 Automatic liquid level indicator and alarm system |
| 07/10/1984 | US4458530 Microwave sensor for checking the level of the molten metal in continuous casting processes |
| 07/10/1984 | CA1170758A1 Flexible tape electroacoustic transducer using an electret |
| 07/04/1984 | EP0112783A2 Thermal probe for detecting the presence or absence of a liquid |
| 07/03/1984 | US4458118 Reservoir with liquid level sensing device |
| 07/03/1984 | US4457171 Liquid-level indicator |
| 07/03/1984 | US4457170 For measuring the height of fluid in a reservoir |
| 07/03/1984 | CA1170145A1 Liquid level system |
| 06/27/1984 | EP0112105A1 Fluidised bed level measurement |
| 06/26/1984 | CA1169943A1 Method and apparatus for measuring the position of an interface between different materials by frequency domain reflectometry |
| 06/21/1984 | WO1984002401A1 Water level monitor and/or alarm system for bilges |
| 06/20/1984 | EP0111353A2 Blanket-medium/brine interface detection in a solution-mining process |
| 06/19/1984 | US4454761 Liquid level detector adapted in particular to determine the level of fuel in a vehicle fuel tank |
| 06/19/1984 | US4454760 For measuring the pressure of a liquid in a tank |
| 06/19/1984 | US4454759 Fuel gauge for locomotives |
| 06/19/1984 | US4454747 High-low level control test method and apparatus |
| 06/19/1984 | CA1169327A1 Method and apparatus for controlling and optionally regulating the level of liquid p.sub.2s.sub.5 in a cooling device |
| 06/13/1984 | EP0110817A1 Device for detecting the level of a liquid metal |
| 06/12/1984 | US4454469 Measurement of variations in the distance between a color selection electrode and a display window of a color display tube |
| 06/12/1984 | US4453400 Leak detector |
| 06/12/1984 | CA1168903A1 Method of aligning a water level indicator having a remote and a local readout display |
| 06/12/1984 | CA1168898A1 Digital characterization of liquid gaging system sensors |
| 06/05/1984 | US4452176 Milk flow meter |
| 06/05/1984 | US4451986 For directly measuring the ullage of a cargo tank in a vessel deck |
| 05/29/1984 | US4451894 Liquid gaging system multiplexing |
| 05/29/1984 | US4450722 Water level gauge with fault detector |
| 05/29/1984 | US4450721 Apparatus for indicating quantity of liquified gas contained in a storage container |
| 05/29/1984 | CA1168344A1 Integrity check for ultrasonic fluid interface sensing system |
| 05/29/1984 | CA1168123A1 Barbecue fuel level gauge |
| 05/22/1984 | US4450501 Liquid quantity sensor of capacitor type |
| 05/22/1984 | US4449405 Rod-like probe for the capacitive measurement of the level in a container |
| 05/22/1984 | US4449404 Thermoelectric level measuring device |
| 05/22/1984 | US4449403 Guide tube inserted liquid level sensor |
| 05/16/1984 | EP0108435A1 Hot liquid level control |
| 05/16/1984 | EP0108431A2 Immersion measuring probe for measurements in fluid metals |
| 05/15/1984 | US4448207 Medical fluid measuring system |
| 05/15/1984 | US4448072 Fluid level measuring system |
| 05/15/1984 | US4448071 Method of measuring and indicating fluid levels |
| 05/15/1984 | CA1167481A1 Gas bottle contents gauge |
| 05/08/1984 | US4447743 High pressure liquid level monitor |
| 05/08/1984 | US4447062 Sealing arrangement for fluid flow engines |
| 05/08/1984 | US4446896 Cup filling apparatus |
| 05/08/1984 | US4446731 Container having sight glass |
| 05/08/1984 | US4446730 Specific gravity independent gauging of liquid filled tanks |
| 05/08/1984 | CA1166975A1 Fluid handling devices and containers therefor |