| 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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| 08/27/1997 | CN2261016Y Air-blowing type water-level meter |
| 08/27/1997 | CN1157914A Fluorescent three-coloured float level meter |
| 08/26/1997 | US5661490 Time-of-flight radio location system |
| 08/26/1997 | US5661462 Bath overflow alarm |
| 08/26/1997 | US5661385 Window-closing safety system |
| 08/26/1997 | US5661251 Sensor apparatus for process measurement |
| 08/26/1997 | US5661238 Bi-stable liquid indicator |
| 08/26/1997 | US5661228 Liquid pressure and level sensing instruments |
| 08/21/1997 | DE19605006C1 Volume measuring method for fluid in container |
| 08/20/1997 | CN2260315Y Corrosion-resistant liquid level sensing device for pressure container |
| 08/20/1997 | CN1157214A Ink-supply control device and stencil printing machine having the same |
| 08/20/1997 | CA2197363A1 Self-sealing sight glass for a fluid vessel |
| 08/20/1997 | CA2194806A1 System and method for measuring level of turbulent liquid |
| 08/19/1997 | US5659321 Radar distance measuring device |
| 08/19/1997 | US5657665 For an internal combination engine |
| 08/14/1997 | WO1997029348A1 Improved fluid overfill probe |
| 08/14/1997 | WO1997017624A3 Method for fixing the position, with respect to the direction and range, of a target with an ultrasonic transducer |
| 08/14/1997 | DE19604983A1 Capacity level and proximity sensor monitoring liquid surface |
| 08/14/1997 | DE19601646C1 Waste water flow measurement arrangement for e.g. water or run=off channel |
| 08/13/1997 | EP0789231A2 Fuel system low current rheostat |
| 08/13/1997 | EP0788894A1 Vessel provided with visibility for residual amount of colored liquid |
| 08/13/1997 | CN2259621Y High-pressure bichromatic level indicator |
| 08/13/1997 | CN2259620Y Bichromatic level indicator with independent reflector |
| 08/13/1997 | CN1156821A Thermal conductance type liquid level measuring controller |
| 08/12/1997 | US5656774 Apparatus and method for sensing fluid level |
| 08/12/1997 | US5655841 Error-compensated temperature measuring system |
| 08/12/1997 | US5655561 Wireless system for detecting and stopping water leaks |
| 08/12/1997 | US5655403 Reversible float for use in a tank gauging system |
| 08/12/1997 | US5655379 Refrigerant level control in a refrigeration system |
| 08/07/1997 | WO1997021988A3 Method and apparatus for determining the profile of a sludge bed in a thickener |
| 08/07/1997 | DE19617031C1 Water-table indicator for hydroponics cultivation container |
| 08/06/1997 | CN2258985Y Liquid level measaring device with purifying pipe having purifying medium therein |
| 08/06/1997 | CN2258984Y Code wheel optoelectronic liquid level transducer |
| 08/06/1997 | CN2258983Y Scale calibrating device for sodium liquid level meter |
| 08/06/1997 | CN1156245A 可编程序水位测控仪 Programmable Level Monitor |
| 07/31/1997 | WO1997027061A1 Method and device for determining the quantity of product present in a reservoir, notably that of ink in an image forming device |
| 07/31/1997 | WO1997027054A1 Fluid level detection system for ink in a printing press |
| 07/31/1997 | WO1997017591A3 Ultrasonic monitoring technique for containers and apparatus to carry it out |
| 07/31/1997 | DE19603093A1 Rod electrode with corrosion protection layer |
| 07/31/1997 | DE19602655A1 Monitoring filling level control unit for bottles for drinks production line e.g. water, beer |
| 07/31/1997 | DE19602424A1 Auxiliary heater for steam-generating boiler |
| 07/31/1997 | DE19600097C1 Verfahren und Vorrichtung zur Bestimmung einer Flüssigkeitshöhe mit Hilfe von Ultraschallimpulsen Method and apparatus for determining a liquid level by means of ultrasonic pulses |
| 07/30/1997 | EP0786584A1 Method for determining a liquid quantity, especially the quantity of oil, in a motor vehicle |
| 07/29/1997 | US5652393 Method for collecting pressure data from a fuel tank |
| 07/29/1997 | US5652392 Apparatus for collecting pressure data from a fuel tank |
| 07/29/1997 | US5651934 Recoating of stereolithographic layers |
| 07/29/1997 | US5651286 Microprocessor based apparatus and method for sensing fluid level |
| 07/29/1997 | US5651285 Liquid level sensor having a plunger core |
| 07/24/1997 | WO1997026512A1 Apparatus and method for level sensing in a container |
| 07/24/1997 | WO1997026510A1 Alcoholemia risk indication device |
| 07/24/1997 | DE19712577A1 Monitoring concrete filling of shuttering |
| 07/23/1997 | EP0785435A1 Avoiding bubble formation while sensing air-liquid interface using pressurized air flow |
| 07/23/1997 | EP0784924A1 Milk meter |
| 07/23/1997 | EP0784784A1 Liquid level sensor for ink jet printers |
| 07/23/1997 | CN1155074A Device for locating position of separation between two mediums, receptacle and detection process employing the device |
| 07/23/1997 | CN1155073A Low-temp. liquid-level meter |
| 07/22/1997 | US5650571 Low power signal processing and measurement apparatus |
| 07/22/1997 | US5650561 Diagnostic device for determining the pneumatic health of a bubble-type fuel measuring system |
| 07/22/1997 | US5649471 Apparatus for preparing a hot beverage |
| 07/22/1997 | US5649450 In a gauge assembly |
| 07/17/1997 | WO1997025634A1 Triangulation position detection and integrated dispensing valve |
| 07/17/1997 | WO1997025596A1 Process and device for determining the level of a fluid using ultrasonic pulses |
| 07/16/1997 | EP0784254A2 Device for controlling the flow of a liquid |
| 07/16/1997 | EP0783665A2 Barrier device |
| 07/16/1997 | CN1154437A Device for detecting level of liquid |
| 07/16/1997 | CN1035455C Combined steam manifold water level sampler |
| 07/15/1997 | US5648844 Laser liquid level gauge with diffuser |
| 07/15/1997 | US5648727 Capacitive level sensing pipette probe |
| 07/15/1997 | US5648607 Replaceable sight gauge system |
| 07/15/1997 | US5647656 Illuminated fluid level indicator |
| 07/15/1997 | CA2093937C Switch-activating, liquid level sensor |
| 07/10/1997 | DE19700070A1 Integrated magnetic field detector circuit, e.g. Hall effect switch, for motor vehicle |
| 07/08/1997 | US5646409 Method of suppressing extraneous radiation effects in radioactive measuring methods |
| 07/08/1997 | US5645336 For analyzing volatile components of a liquid |
| 07/08/1997 | CA2090727C Differential float means and sensor means incorporating same |
| 07/03/1997 | DE19649193A1 Ultrasonic flowmeters measuring water depth and current speed e.g. for river |
| 07/01/1997 | US5644299 Ultrasonic material level measurement |
| 07/01/1997 | US5644093 Sensor mounting pad and method |
| 07/01/1997 | US5644088 Port forward sensor for liquid level gauge or flowmeter |
| 06/26/1997 | WO1997022855A1 System for measuring differential pressure, flow, and level |
| 06/26/1997 | DE19548689A1 Urinometer with collector and load cell for catheterised patient |
| 06/26/1997 | DE19548219A1 Liquid level in capillary channel detection apparatus for control of flow in e.g. medical drip |
| 06/25/1997 | EP0780665A2 Processor apparatus and method for a process measurement signal |
| 06/25/1997 | EP0780664A2 Sensor apparatus for process measurement |
| 06/25/1997 | EP0779990A1 Time-of-flight radio location system |
| 06/25/1997 | CN2257016Y Magnetically coupled tape levelmeter |
| 06/25/1997 | CN2257015Y Microwave type intelligent liquid level electronic scale |
| 06/25/1997 | CN1152954A Position encoder |
| 06/25/1997 | CN1152708A 感应式数字水位传感器 Inductive digital level sensor |
| 06/24/1997 | US5642097 Remotely readable fuel tank indicator system |
| 06/24/1997 | US5640880 Magnetostrictive sensor |
| 06/19/1997 | WO1997021988A2 Method and apparatus for determining the profile of a sludge bed in a thickener |
| 06/19/1997 | DE19547154A1 Measuring gas volumes using electromechanical exciter excited with set frequency in vehicle fuel tank |
| 06/19/1997 | DE19546343A1 Tank content indicator, for heating oil tanks and other containers |
| 06/18/1997 | EP0779485A2 Refrigerator with water dispenser |
| 06/18/1997 | EP0779156A1 Sensing system for detecting presence of an ink container and level of ink therein |
| 06/17/1997 | US5639426 Sample liquid aspiration and dispensing probe |
| 06/12/1997 | DE19545981A1 Filling-level determination in containers or tanks containing liquid or fluid material |
| 06/10/1997 | US5636548 Analog hall-effect liquid level detector and method |
| 06/10/1997 | US5636547 Liquid level monitoring system having ferrofluid pressure sensor |