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)
12/2000
12/06/2000CN2409501Y Strong magnetic rocking pointer indicator for machine oil
12/06/2000CN2409500Y Pulse signal electrode type water gage
12/06/2000CN2409499Y Self-starting float water intaking device
12/06/2000CN2409460Y Water level display for solar water heater
12/06/2000CN1275881A Method for producing circuit board
12/06/2000CN1059272C level meter
12/05/2000US6157894 Liquid gauging using sensor fusion and data fusion
12/05/2000US6155112 Filling level measuring device operating with microwaves
12/05/2000US6155107 Engine oil level detector for a vehicle
11/2000
11/30/2000WO2000071640A1 Method and means for adding demulsifying agents to a process tank
11/30/2000DE19923901A1 Verfahren und Mittel zur Zugabe von Emulsionsbrechern in einen Prozesstank Methods and means for adding emulsion breakers in a process tank
11/29/2000CN1274649A Liquid container with liquid detecting device
11/29/2000CN1274648A Liquid container with liquid consumption detecting device
11/29/2000CN1274647A Liquid container with liquid consumption detecting device
11/29/2000CN1274646A Liquid consumption state detecting method, liquid container and ink case
11/29/2000CN1274645A Liquid detecting piezoelectric device, liquid container and mounting module body thereof
11/28/2000US6154144 Auto shutoff overflow controller
11/28/2000CA2185602C Sending system for detecting presence of an ink container and level of ink therein
11/23/2000WO2000070712A1 System consisting of a wave guide and an antenna
11/23/2000WO2000070314A1 Method and device for measuring a filling level with a combined gamma ray/ capacitance sensor
11/23/2000DE19921389A1 Method for monitoring and regulating water level and header pressure in membrane expansion tanks for boilers has a balancing crosspiece fitted on an axle fastened in brackets and a spring to determine maximum possible load.
11/22/2000EP1054241A2 Level probe with minimal dead volume
11/22/2000EP1053940A1 Packaging machine for continuously producing sealed packages for a pourable food product, and having a capacitive level sensor
11/22/2000EP1053881A1 A liquid container having a liquid detecting device
11/22/2000EP1053880A2 A liquid container having a liquid consumption detecting device therein
11/22/2000EP1053879A2 Liquid consumption status detecting method, liquid container, and ink cartridge
11/22/2000EP1053878A1 Liquid detecting piezoelectric device, liquid container and mounting module
11/22/2000EP1053877A1 Liquid container having liquid consumption detecting device
11/22/2000CN1274418A Measuring angular distribution of liquid spray produced by fuel injection valve
11/21/2000US6148681 Level probe with modular connection
11/21/2000US6148668 Gas grill tank scale
11/21/2000US6148667 Pressure vessel isolation carriage
11/21/2000US6148666 Method and device for liquid transfer with an analysis apparatus
11/21/2000US6148665 Arrangement for establishing and/or monitoring a predetermined filling level in a container
11/21/2000CA2164592C Material level probe having crimp seal
11/20/2000CA2476325A1 Liquid consumption status detecting method, liquid container, and ink cartridge
11/20/2000CA2434732A1 A liquid container having a liquid consumption detecting device therein
11/16/2000WO2000068645A1 Fiber optic curvature sensor
11/16/2000WO2000033035A3 Liquid level gauge
11/16/2000DE19938836A1 Process for determining whether liquid is present in a portion of the primary circuit of nuclear reactor works
11/16/2000DE19922381A1 Method and device for measuring levels with a gamma-ray capacity multi-purpose sensor incorporates a gamma-ray sensor and a capacity sensor for localizing barrier films between gas, oil and water.
11/15/2000CN2406229Y 雨量计 Rain Gauge
11/15/2000CN2406228Y Suspension self-recording water-level meter
11/15/2000CN2406227Y Non-insertion type anti-blast supersonic liquid-level alarming device
11/15/2000CN2406226Y Liquid-level measuring instrument
11/15/2000CN2406225Y Liqud quantitative controlling device
11/14/2000US6147504 Rod-shaped capacitive probe having sheet-like electrode
11/14/2000US6145332 Apparatus for protecting pumps against cavitation
11/11/2000CA2307468A1 Transversely coupled fiber optic sensor for measuring and classifying contact and shape
11/11/2000CA2271918A1 Transversely coupled fiber optic sensor for measuring and classifying contact and shape
11/09/2000WO2000065967A1 Liquid container
11/09/2000WO2000019173B1 Analog liquid level sensor
11/09/2000DE19919118A1 Process for measuring the filling level in the centrifugal drum of a filter centrifuge comprises producing reference measurements between ultrasound sensors and reflection surfaces
11/08/2000EP1049626A2 Non-contact ultrasonic micromeasurement system
11/08/2000CN2405199Y Steel wire rolling device for on-line observing level in powder material storehouse
11/08/2000CN2405198Y Device for indoor observing level of water in solar engergy water heater
11/08/2000CN2405197Y Mirror for indicating oil level
11/07/2000US6142450 Lightning resistant hydrological pulley
11/07/2000US6142018 Conductor burnishing
11/07/2000US6142017 Hydrostatic pressure equalizer apparatus and system
11/07/2000US6142016 Apparatus for detecting residual quantity of toners
11/07/2000US6142015 Method and assembly for overfill detection in liquid level sensing in a vessel by the pulse transit time technique
11/07/2000CA2271346A1 Level gauge for a liquid storage tank
11/07/2000CA2131283C Pipetting apparatus
11/02/2000EP1048953A2 Method and device for transferring liquids in an analyzer
11/02/2000EP1048469A2 Liquid supplying system and liquid supply container
11/02/2000EP1047920A1 Level sensor
11/02/2000DE19919305A1 Verfahren und Vorrichtung zum Flüssigkeitstransfer mit einem Analysegerät Method and apparatus for fluid transfer using an analyzer
11/02/2000DE19916979A1 Verfahren zur Füllstandsmessung und Füllstandssensor Method for level measurement and level sensor
11/02/2000DE19916953A1 Vorrichtung zum Anzeigen und/oder Kontrollieren von Fluiden Means for displaying and / or controlling fluids
11/01/2000CN2404108Y Electronic floating ball displacement transducer
11/01/2000CN1058080C Method of detecting residual quantity of gas in cassette type gas cylinder and apparatus thereof
11/01/2000CN1058079C Cassette type gas cylinder with remaining volume alarm unit and manufacturing method thereof
10/2000
10/31/2000US6141432 Optical identification
10/31/2000US6140925 Magnetically actuated float switch
10/31/2000US6138524 Mounting arrangement for a device for detecting the fuel level in a fuel tank
10/31/2000US6138509 Water level monitoring float system
10/31/2000US6138508 Digital liquid level sensing apparatus
10/31/2000US6138507 Apparatus for establishing and/or monitoring a predetermined filling level in a container through controlled transducer phase and impedance
10/26/2000WO2000063657A1 Method for measuring level and level sensor
10/25/2000EP1046888A1 Indicator and/or control device for fluids
10/25/2000EP1046017A1 Measuring the angular distribution of a liquid spray produced by a fuel injection valve
10/25/2000CN2403009Y Liquid level control float
10/25/2000CN2403008Y Servo multipurpose liquid measurer
10/25/2000CN2403007Y Glass tube and quartz tube type viscous oil level gauge
10/25/2000CN1271297A Indicator arrangement for air cleaner systems and methods thereof
10/24/2000US6137513 Printer using print cartridge with internal pressure regulator
10/21/2000CA2269483A1 Water leakage or overflow detection alarm
10/19/2000DE19926529C1 Container liquid level indicator e.g. for automobile fuel tank, has float coupled to length measuring device with digital length measuring sensor using axially sliding measuring bolt
10/19/2000DE19917361A1 Drinks crate with compartments, each holding spring which supports the bottle within the respective compartment
10/18/2000EP1045228A1 System measuring the contents of tanks via a transmitter/receiver of brief data by radio waves at short/long distance
10/18/2000EP1044053A1 Indicator arrangement for air cleaner systems and methods thereof
10/18/2000EP1014840A4 Novelty article
10/18/2000CN1270668A Method for producing a float, fuel-resistant float and use of particles compressed together, obtained by extrusion
10/18/2000CN1270306A Dual liquid columns type three-phase (oil, gas and water) metering instrument by height (or pressure) and density difference
10/17/2000US6131769 Apparatus for detecting low liquid level in bottom-draining container
10/17/2000US6131471 Liquid level sensor
10/17/2000CA2234786C Apparatus for establishing and/or monitoring a predetermined filling level in a container
10/12/2000WO2000060321A1 Liquid level sender assembly
10/12/2000WO2000025098A3 Capacitive measuring device