| 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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| 11/08/1983 | US4413810 Ascertaining the level of the slag-liquid-metal interface in metallurgical vessels |
| 11/08/1983 | US4413515 Barbecue fuel level gauge |
| 11/01/1983 | US4413255 Fluid level indicator |
| 11/01/1983 | US4413182 Level detector |
| 11/01/1983 | US4412450 Arrangement for determining the level in a container |
| 10/27/1983 | WO1983003670A1 Device for detecting the liquid level in a tank, particularly of a liquified gas in a lighter tank, and tank provided with such device |
| 10/25/1983 | US4412270 Electrode assembly for a capacitance type probe |
| 10/25/1983 | US4412204 Fuel level monitoring and engine control device |
| 10/25/1983 | US4411155 Sensor for detecting the level of liquid in a tank |
| 10/19/1983 | EP0091850A1 Automatic liquid level regulator for superfluid helium contained within a reservoir |
| 10/18/1983 | US4410886 Wall build-up detector for a multi-point level indicator |
| 10/18/1983 | US4410885 Conductive fluid detecting method and apparatus |
| 10/18/1983 | US4410020 Sensor syringe |
| 10/18/1983 | US4409833 Diaphragm manometer |
| 10/18/1983 | US4409831 Liquid level indicator apparatus |
| 10/11/1983 | CA1155197A1 Ultra sensitive liquid level detector and method |
| 10/04/1983 | US4407159 Apparatus and method for detecting an interface from a remote location |
| 10/04/1983 | CA1154611A1 Apparatus for indicating quantity of liquified gas contained in a storage container |
| 10/04/1983 | CA1154610A1 Thermocouple apparatus for indicating liquid level in a container |
| 09/29/1983 | WO1983003273A1 Sanitary cleaning device |
| 09/28/1983 | EP0089336A1 Measurement of the filling level. |
| 09/21/1983 | EP0089098A2 Refractive-index responsive light-signal system |
| 09/20/1983 | US4406011 Coolant monitoring with heat sensitive device |
| 09/15/1983 | WO1983003135A1 Fluid level sensing apparatus |
| 09/07/1983 | EP0088026A2 Head for the detection of a level by the hydrostatic effect with protection |
| 09/06/1983 | US4402209 Liquid level float gauge calibration means |
| 09/06/1983 | CA1153445A1 Apparatus and method for sensing a substance on a liquid surface |
| 09/06/1983 | CA1153167A1 Cleaning device for use with a dip stick |
| 08/31/1983 | EP0087382A1 Method of measuring the level of liquid metal in continuous casting moulds |
| 08/30/1983 | US4402048 Method of and apparatus for indicating remaining fuel quantity for vehicles |
| 08/30/1983 | US4401598 Production of organosilicon compounds having azido groups |
| 08/30/1983 | US4401237 Apparatus for monitoring feed of granular material |
| 08/30/1983 | US4400976 Ultrasonic transceiver circuit for level sensing |
| 08/30/1983 | US4400881 Apparatus for locating the level of liquid in a vessel |
| 08/23/1983 | US4399699 Electrostatic type fuel measuring device |
| 08/23/1983 | CA1152350A1 Temperature compensation apparatus for a liquid filled conduit |
| 08/18/1983 | WO1983002824A1 Fluid level detection and monitoring system |
| 08/17/1983 | EP0086154A2 Liquid container and working method thereof |
| 08/16/1983 | US4398424 Ultrasonic sensing |
| 08/10/1983 | EP0085359A1 Electrical level measuring transducer |
| 08/10/1983 | EP0085042A1 Sampling apparatus and related method |
| 08/09/1983 | US4398186 Sewer back up warning system |
| 08/09/1983 | US4397265 Particle level sensing apparatus |
| 08/09/1983 | US4397183 Apparatus for detecting level changes in distance |
| 08/09/1983 | US4397182 Method of aligning a water level indicator having a remote and a local readout display |
| 08/02/1983 | US4396911 Multi-point level indicator system |
| 08/02/1983 | US4396353 Submersible sump pump |
| 08/02/1983 | CA1150969A1 Sensor syringe |
| 07/27/1983 | EP0084405A1 Device for detecting or controlling an interface between two liquids |
| 07/26/1983 | US4395633 Level gauge using neutron irradiation |
| 07/19/1983 | US4394346 Water level gauge for a nuclear reactor |
| 07/12/1983 | US4393451 Method and apparatus for measuring total liquid volume flow |
| 07/12/1983 | US4392782 Liquid level controller |
| 07/12/1983 | US4392523 Process and apparatus for controlling the level of a molten metal surface in continuous casting moulds |
| 07/12/1983 | US4392378 Capacitance measuring apparatus |
| 07/07/1983 | WO1983002322A1 Fuel gauge for automobile |
| 07/05/1983 | CA1149505A1 Liquid level detector |
| 06/28/1983 | US4390793 Electronic liquid level control apparatus |
| 06/28/1983 | US4390782 Method and apparatus for measuring the liquid level of containers |
| 06/28/1983 | US4390073 Blood collection bag weighing device |
| 06/28/1983 | US4389900 Capacitance probe sensor device |
| 06/28/1983 | US4389889 Apparatus for detecting the presence of water in a fuel tank |
| 06/28/1983 | US4389888 Level meter |
| 06/22/1983 | EP0081832A1 Tank level measuring device |
| 06/22/1983 | EP0081629A1 Liquid level transmitter |
| 06/21/1983 | US4389580 Flexible tape electroacoustic transducer using an electret |
| 06/21/1983 | US4388828 Liquid gaging system sensor calibration |
| 06/21/1983 | US4388827 Method for measuring the depth of a liquid body |
| 06/15/1983 | EP0081049A2 Device for the direct measurement of the quantity of milk delivered by a cow during milking |
| 06/14/1983 | US4387594 Water level indicator having a remote and a local readout display |
| 06/14/1983 | US4387593 Powder level measurement probe |
| 06/09/1983 | WO1983002001A1 Sonic pressure volume measuring device |
| 06/08/1983 | EP0080755A1 Sensor circuit for detecting the water content in fuel and use of such a sensor circuit |
| 06/08/1983 | EP0020382B1 Combined dipstick breather tube |
| 06/07/1983 | US4387434 Intelligent field interface device for fluid storage facility |
| 06/07/1983 | US4386524 Manometer type apparatus with improvement |
| 06/07/1983 | US4386503 Method and apparatus for controlling and optionally regulating the level of liquid P2 S5 in a cooling device |
| 05/31/1983 | US4386409 Sewage flow monitoring system |
| 05/31/1983 | US4386406 Fuel level measuring method and apparatus of the same |
| 05/31/1983 | US4386337 Liquid level sensor |
| 05/31/1983 | US4385672 Feed level indicator |
| 05/31/1983 | US4385519 Water level sensor and temperature profile detector |
| 05/25/1983 | EP0079422A1 Method and apparatus for detecting the presence of liquid |
| 05/25/1983 | EP0079421A1 Improved solids mass flow indication |
| 05/25/1983 | EP0079355A1 An apparatus for level measurements |
| 05/24/1983 | US4385290 Liquid level sensing circuitry |
| 05/24/1983 | US4384486 Fill indicator for fire extinguishing systems |
| 05/24/1983 | CA1146770A1 Electronic urine flow monitor |
| 05/18/1983 | EP0078939A1 Bar-like device for detecting the respective level of fluids in containers, channels or the like |
| 05/17/1983 | US4384184 Explosion-proof device for measuring liquid levels |
| 05/17/1983 | US4383544 Boiler low water level sensing device |
| 05/17/1983 | US4383445 Capacitance circuit for level measurement |
| 05/17/1983 | US4383444 Microprocessor based capacitance level detection system |
| 05/17/1983 | US4383443 Liquid-level measurement |
| 05/17/1983 | CA1146354A1 Device for mounting a radar probe for shaft furnaces |
| 05/10/1983 | US4382478 Gas bottle contents gauge |
| 05/10/1983 | US4382382 Multilevel liquid sensing system |
| 05/03/1983 | CA1145623A1 Sensor for measuring leakage |
| 04/28/1983 | WO1983001506A1 Receptacle for urological use |
| 04/27/1983 | EP0077747A2 Controlling process for a continuous casting mould during casting |