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)
06/1998
06/03/1998EP0612430B1 Ultrasonic transducer
06/03/1998CN2283274Y 电子水位传感器 Electronic level sensor
06/03/1998CN2283241Y Reed liquid level signal device
06/03/1998CN2282891Y Drop liquid level alarm device
06/02/1998US5760577 LC resonance circuit displacement sensor
06/02/1998US5760309 For use in an ultrasonic measurement system
05/1998
05/28/1998DE19750642A1 Automatic analysis apparatus
05/28/1998DE19728280A1 Probe for continuous measurement of liquid level in container e.g. system
05/28/1998DE19648688A1 Filling level amount determination method for tank system
05/27/1998EP0689679B1 Process for recognizing and discriminating between useful and interfering echos in the reception signal of distance sensors working according to the pulse-echo principle
05/26/1998US5757988 Optical fiber sensor utilizing a swellable detector material
05/26/1998US5757664 Method and apparatus for monitoring operational performance of fluid storage systems
05/26/1998US5757390 Ink volume sensing and replenishing system
05/26/1998US5757320 Short range, ultra-wideband radar with high resolution swept range gate
05/26/1998US5756940 Weight measurement of blood volume soft-shell venous reservoirs
05/26/1998US5756899 Integrated sensor
05/26/1998US5756876 Method of setting the switching point of a capacitive level limit switch
05/26/1998US5755358 Toner level detection system
05/26/1998US5755136 Device for monitoring a predetermined level of a liquid in a container
05/26/1998US5755105 Air conditioning system fluid level controller
05/22/1998WO1998021557A1 Method for determining parameters, for example level, pressure, gas composition in closed containers
05/22/1998WO1998021094A1 Suction device
05/22/1998WO1998020996A1 Metering oven
05/20/1998EP0843162A2 Determining liquid volumes in cup-like vessels on a rotor having vertical deviations
05/20/1998EP0842504A1 Window-closing safety system
05/20/1998EP0842441A1 High accuracy electronic material level sensor
05/20/1998EP0842440A1 Short range radio locator system
05/20/1998EP0842402A2 Disposable electromagnetic fluid level sensor
05/20/1998EP0676037B1 Device for measuring the level of container contents
05/20/1998DE19646410A1 Absaugvorrichtung Suction
05/20/1998CN2282177Y Gaseous formular liquid level meter
05/20/1998CN1182478A Liquid level sensor
05/19/1998US5754609 Condensation vessel for the measurement of steam pressure, filling level and steam flow rate and method for operating a condensation vessel
05/19/1998US5754207 Volume indicating ink reservoir cartridge system
05/19/1998US5752409 Method of accurately gauging fuel in an automotive tank
05/19/1998CA2150855C Device for determining and/or monitoring a predetermined material level in a container
05/14/1998WO1998019620A1 Packaged photocurable composition
05/14/1998DE19714534A1 Measuring bridge-type filling level gauge
05/14/1998DE19647713A1 Verfahren zur Erfassung eines Pegels von flüssigem Metall A method for detecting a level of liquid metal
05/14/1998DE19646685A1 Verfahren zur Bestimmung von Parametern, z. B. Füllstand, Druck, Gaszusammensetzung in verschlossenen Behältern Method for the determination of parameters, such. As level, pressure, gas composition in sealed containers
05/14/1998DE19646300A1 Level switch for monitoring consumer water and sewage levels in containers and pipes
05/14/1998DE19645970A1 Capacitive level sensor for measuring filling level of liquid in container
05/13/1998EP0840759A1 Block copolymers
05/12/1998US5751611 Display device for linearly displaying a non-linear input variable
05/12/1998US5750881 Method and apparatus for aspirating and dispensing sample fluids
05/08/1998CA2190020A1 Method for determining the level of a submerged layer of liquified material
05/07/1998WO1998019139A1 Method and apparatus for the sonic measurement of sludge and clarity conditions during the treatment of waste water
05/07/1998DE19643956A1 Ultrasonic fluid level sensor for fluid in container
05/07/1998CA2270398A1 Method and apparatus for the sonic measurement of sludge and clarity conditions during the treatment of waste water
05/06/1998EP0840099A1 Device for detecting the water level in an electrical heating appliance
05/06/1998EP0840098A2 Fluid level detection apparatus and method for determining the volume of fluid in a container
05/06/1998EP0839660A1 Coupling member for cartridge in an ink-jet printer
05/06/1998EP0839659A1 Ink delivery system for ink-jet printing system with pressure regulator
05/05/1998US5748562 Level detector for solids
05/05/1998US5747824 Apparatus and method for sensing fluid level
05/05/1998US5747689 Fluid level sensing system
05/05/1998US5746088 Fuel system low current rheostat
04/1998
04/30/1998WO1998017982A1 Relative location detection sensor
04/30/1998WO1998017981A1 Material interface level sensing
04/30/1998WO1998017974A1 Position sensor with magnetic coupling
04/29/1998EP0838668A2 Level measuring device in a container
04/29/1998EP0838666A1 Measuring device
04/29/1998EP0760087B1 Position encoder
04/28/1998US5745377 Method and apparatus for determining quantity of liquid in a container and/or lack of motion thereof
04/28/1998US5744945 Cryogenic fluid-level sensor
04/28/1998US5744793 Triangulation position-detection and integrated dispensing valve
04/28/1998US5744716 Fluid displacement level, density and concentration measurement system
04/28/1998US5743138 Spirally fluted float
04/28/1998US5743137 Magnetic float assembly
04/28/1998US5743136 Fluid level sensor with resistive and conductive layers
04/28/1998US5743135 Optical-fiber liquid-level monitor
04/28/1998US5743134 Method and arrangement for determining and/or monitoring a predetermined level of material in a container
04/28/1998US5742999 Method of assembling side-mountable liquid level sensor assembly
04/23/1998DE19650727A1 Measurement device
04/22/1998EP0837304A1 Apparatus for monitoring the level of a liquid medium in a container, especially for a bathtub
04/22/1998EP0837013A1 Dosing device foreseen for a dosing tube equipped with a butterfly valve
04/22/1998CN2279595Y Mechanical electronic type powder bin ore level meter
04/22/1998CN2279594Y Running water supply prompting device
04/22/1998CN2279593Y Bin level meter
04/22/1998CN2279592Y Bin level multistage display self-controlling alarmer
04/22/1998CN1179828A Sensor arrangement
04/16/1998WO1998015884A1 Apparatus for remote monitoring of the level of liquid in at least one tank
04/16/1998WO1998015801A1 Method for controlling the speed of a pump based on measurement of the fluid depth in a well
04/16/1998DE19642026A1 Capacitive fluid level detector for container
04/15/1998EP0836081A2 Measuring and display device for a fluid container
04/15/1998EP0835956A2 Pressure chamber for a water level sensor in a washing machine
04/15/1998CN2278928Y High accuracy colour bar liquid level meter with infrared optoelectronic switches
04/14/1998US5739598 Selfadjusting capacitive level switch for a non-contact or contact sensing of media or objects
04/14/1998US5739534 System for monitoring and adjusting the water level in a washing machine
04/14/1998US5737963 Ultrasonic transducer
04/09/1998WO1998014763A1 Process control transmitter with electrical feedthrough assembly
04/09/1998WO1998014762A1 Level gage waveguide transitions
04/09/1998WO1998014532A1 Process and device for measuring the level of bulk material containing carbon
04/09/1998WO1998014330A1 Method and apparatus for maintaining ink level in ink fountain of printing press
04/09/1998CA2267554A1 Process control transmitter with electrical feedthrough assembly
04/08/1998EP0834722A2 Microwave level measuring apparatus
04/08/1998CN2278208Y Column type fluorescent magnetic turning over liquid level gauge
04/08/1998CN2278207Y Magnetic liquid level measuring indication instrument
04/08/1998CN2278206Y Gravity type liquid level gauge
04/08/1998CN2278205Y Liquid level gauge with device for eliminating deformation stress