Patents
Sitemap › G01 - Measuring; Testing › G01F - Measuring volume, volume flow, mass flow, or liquid level; Metering by volume › 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
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)
04/1982
04/27/1982US4326851 Level sensor apparatus and method
04/27/1982US4326413 Liquid-level gauge for vehicles
04/21/1982EP0050056A1 Visual fluid level indicator
04/20/1982US4326173 Digital phase locked loop frequency control system
04/20/1982US4325416 Apparatus for determining and/or controlling a fixed filling level in a container
04/20/1982US4325255 Ultrasonic apparatus and method for measuring the characteristics of materials
04/20/1982CA1122303A1 Electronic liquid level monitor and controller
04/15/1982WO1982001249A1 Liquid level gauge
04/14/1982EP0049542A1 Differential radiation detection apparatus
04/06/1982CA1121505A1 Displaced position detecting device
04/06/1982CA1121501A1 Method and apparatus for determining liquid level
04/06/1982CA1121482A1 Transponder system including an oscillator ripple counter controlling a coded analog multiplex network in a circuit with a driver/gate circuit for generating red-alert end condition digital signals in a storage tank
04/06/1982CA1121173A1 Float for use in tank gauging systems
03/1982
03/31/1982EP0048607A1 Washing machine level detector
03/31/1982EP0048589A1 Tank contents gauge
03/31/1982EP0048580A1 Liquid storage and measurement system
03/30/1982US4322713 Level monitoring methods and apparatus particularly for high-resistivity liquids
03/30/1982US4322627 Apparatus for monitoring the surface of the charge of a shaft furnace
03/30/1982US4321826 Flowmeter for fluid flow through weirs and parshall flumes
03/30/1982CA1121020A1 Device for the precise measurement of movements or deformations
03/30/1982CA1121016A1 Transducer system for continuous monitoring liquid levels in storage tanks and the like
03/24/1982EP0048017A1 Measuring method for measuring electrically sensed parameters of vehicles
03/23/1982US4321590 Check mechanism for fluid level warning device in fluid reservoirs
03/23/1982US4320775 Liquid metering unit responsive to the weight of the metered liquid
03/23/1982US4320659 Ultrasonic system for measuring fluid impedance or liquid level
03/23/1982US4320656 Thermocouple apparatus for indicating liquid level in a container
03/23/1982CA1120235A1 Method and apparatus for regulating the bath level in a continuous casting mould by means of alternating electro-magnetic fields
03/17/1982EP0047521A1 Particulate material level sensing apparatus
03/17/1982EP0047352A1 Fluid handling devices such as filters and lubricators and containers therefor
03/16/1982US4320394 Fiber optics liquid level and flow sensor system
03/16/1982US4319484 Linear response capacitance wave height measuring system
03/09/1982US4319233 Device for electrically detecting a liquid level
03/09/1982US4318624 Slip clutch for a bin level indicator
03/09/1982US4318227 Device for determining physical qualities of pressurized container contents
03/04/1982WO1982000710A1 Material level detecting device
03/02/1982US4318075 Thick-film potentiometer
02/1982
02/23/1982US4317106 Digital indicating installation for motor vehicles
02/23/1982CA1118615A1 Steam iron water gauge
02/18/1982WO1982000517A1 Capacitive measuring device
02/16/1982US4316183 Liquid level sensor
02/16/1982US4316174 Threshold detector for a condition indication
02/09/1982US4314478 Capacitance probe for high resistance materials
02/04/1982WO1982000277A1 Transmission filler assembly
02/02/1982US4313343 Apparatus for detecting remaining quantity of toner in electrophotographic copying machine
01/1982
01/27/1982EP0044434A1 Capacitive level sensor and method of controlling a capacitive level sensor
01/26/1982US4313114 Liquid level recorder apparatus and method for storing level differences in memory
01/26/1982US4313102 Level sensing device for dielectric liquids
01/26/1982US4312657 Measuring impedence
01/26/1982CA1116964A1 Combined dipstick breather tube
01/19/1982US4311050 Reservoir for medicaments
01/19/1982US4311048 Liquid level sensing means
01/13/1982EP0043676A1 Apparatus and method of determining the content of a gas bottle
01/12/1982US4310794 Capacitive probe detection systems
01/12/1982CA1115946A1 Dip stick for curved access tube
01/06/1982EP0043312A1 Probe for liquid-level detection
01/05/1982US4309483 Anti-static coating on ullage tapes comprising carbon black derived from a rich acetylene flame
01/05/1982US4308725 Refrigerant quantity detecting device for air conditioning of vehicles
01/05/1982CA1115807A1 Transponder system including an oscillator/ripple counter controlling a fixed gray code logic network in a circuit with a driver/gate circuit for generating "red-alert" end condition digital signals in a storage tank guaging system
01/05/1982CA1115806A1 Amplitude responsive detector
12/1981
12/30/1981EP0042775A1 Liquid-level indicator, especially for the determination of the fuel level in a tank of a vehicle
12/30/1981EP0042464A1 Electronic gauge comprising an ultrasonic transmitter and receiver
12/29/1981US4307606 Thermal transition zone sensing and indicating system
12/24/1981WO1981003701A1 Integrity check for ultrasonic fluid interface sensing system
12/23/1981EP0042186A1 A method and apparatus for measuring the position of an interface between different materials by frequency domain reflectometry
12/23/1981EP0042038A1 Device for electrically monitoring the level of a liquid in a container
12/22/1981US4306525 Engine oil indicator
12/15/1981US4305285 Liquid level detecting and warning device
12/15/1981US4305284 Method and means for indicating fluid level by fluid pressure
12/15/1981US4305283 Position determining apparatus
12/15/1981CA1114194A1 Method and apparatus for detecting the presence of water in oil
12/08/1981US4304132 Water detection device
12/02/1981EP0040888A1 Capacitive measuring device
12/01/1981CA1113582A1 Liquid level sensing apparatus
12/01/1981CA1113345A1 Carbonator and liquid level control
11/1981
11/24/1981US4302623 Ultrasonic batch sensing apparatus for glass-melting furnaces
11/24/1981US4301681 Method of using capacitor probe with a semiconductive electrode
11/24/1981US4301597 Dipstick
11/18/1981EP0040107A1 Fuel gauging system
11/17/1981US4301440 Level detecting device
11/17/1981US4300388 Method for leakage measurement
11/11/1981EP0039510A1 Level control for brake fluid in motor vehicles
11/11/1981EP0039420A2 Device for measuring the level and the average temperature of liquids in tanks
11/10/1981US4299126 Device for measuring the level of a liquid in a container
11/10/1981US4299122 Force transducer
11/10/1981US4299114 Method of testing the integrity of an ultrasonic system for sensing liquid-fluid interfaces
11/10/1981CA1112082A1 Liquid level gauge illuminating system
11/04/1981EP0039187A1 Liquid level indicator
11/04/1981EP0038912A1 Canula with sensing means
11/04/1981EP0038894A2 Fuel level gauge
10/1981
10/29/1981WO1981003067A1 Apparatus for indicating quantity of liquified gas contained in a storage container
10/28/1981EP0038356A1 Method for leakage measurement
10/27/1981US4297686 Water detection device
10/27/1981US4297588 Electro-optical level
10/27/1981US4297543 Safety device for container filler systems
10/27/1981US4297081 Liquid level control system
10/27/1981US4296630 Apparatus for capacitive filling-level measuring, particularly in a motor vehicle tank
10/20/1981US4296472 Non-intrusive fluid measuring system
10/20/1981US4295370 Capacitive scheme for measuring the level of a liquid
10/20/1981CA1111124A1 Fluid level detector test switch
10/14/1981EP0037792A1 Device for measuring the level of slag in a furnace for molten metal during pig iron refining
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