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