| 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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| 11/18/1997 | US5687608 Connector for concentric tubes attached to a fuel gauge |
| 11/18/1997 | US5687607 Method of measuring the quantity of fuel in a tank of a space vehicle such as a satellite |
| 11/13/1997 | WO1997042470A1 Level-measuring equipment for liquids |
| 11/13/1997 | DE19617987A1 Oil level control for motor vehicle combustion engine |
| 11/13/1997 | DE19617963A1 Antenna for radar filling level measuring system |
| 11/12/1997 | EP0806637A2 Fuel level indicator systems |
| 11/12/1997 | EP0806636A1 Fluid gauging apparatus using magnetostriction and a stick gauge |
| 11/12/1997 | CN2267454Y Liquid level indicating sensor |
| 11/11/1997 | US5686894 Two terminal I.C. magnetic-field detector for use in a liquid level sensor and having an anti-slosh feature |
| 11/11/1997 | US5686893 Water leakage detecting apparatus of water purifier |
| 11/11/1997 | US5685772 Acoustic volume and torque weight sensor |
| 11/11/1997 | US5685194 Differential twin sensor system |
| 11/06/1997 | WO1997041409A1 Automated liquid-level vessel apparatus |
| 11/06/1997 | WO1997040661A1 Water level indicator for plant substrate |
| 11/06/1997 | DE19706868A1 Partition position detection device for tanker vehicle |
| 11/06/1997 | DE19617237A1 Inductive sensor for showing molten metal depth in typecasting machine |
| 11/06/1997 | CA2203971A1 Fluid gauging apparatus using magnetostriction and a stick gauge |
| 11/05/1997 | CN2266735Y Automatic measuring liquid level gauge |
| 11/04/1997 | US5684296 Fiber optic liquid sensing system |
| 11/04/1997 | US5684250 Self-calibrating open-channel flowmeter |
| 10/30/1997 | WO1997040350A1 Differential pressure device |
| 10/30/1997 | WO1997040349A1 Apparatus for the measurement of liquid flow |
| 10/30/1997 | DE19710599A1 Füllstandsmeßsystem Füllstandsmeßsystem |
| 10/30/1997 | CA2252083A1 Apparatus for the measurement of liquid flow |
| 10/29/1997 | CN2266128Y Integral solid level sensor device |
| 10/29/1997 | CN2266127Y Charge level measurer |
| 10/28/1997 | US5682184 System for sensing ink level and type of ink for an ink jet printer |
| 10/28/1997 | US5680791 To determine the level of oil in the sump of an internal combustion engine |
| 10/23/1997 | WO1997039315A1 Method and apparatus for acoustically measuring the level of liquid in a tank |
| 10/23/1997 | WO1997039285A1 Fuzzy logic liquid level control |
| 10/23/1997 | DE19642899A1 Induktive Tintenpegelerfassungsvorrichtung für Tintenvorräte Inductive ink level sensing apparatus for ink supplies |
| 10/23/1997 | DE19623781C1 Precipitation measuring device for rainfall |
| 10/22/1997 | CN2265532Y Electrode device for steam manifold electric contact fluviograph measuring cylinder |
| 10/21/1997 | US5680041 Magnetostrictive position measurement apparatus with anti-reflection waveguide terminals |
| 10/16/1997 | DE19614112A1 Measurement and display of temperature and liquid level in Dewar vessels |
| 10/15/1997 | EP0801309A2 Pipetting apparatus |
| 10/15/1997 | EP0800922A1 Air purging of a pressure regulated free-ink ink-jet pen |
| 10/15/1997 | EP0614519B1 Device for determining and/or monitoring a predetermined level of contents of a container |
| 10/15/1997 | CN2264901Y High-temp. point-type level indicator |
| 10/15/1997 | CN2264900Y Fixed-point optical fiber liquid-level sensor |
| 10/14/1997 | US5676194 Ingot mould for continuous casting |
| 10/09/1997 | WO1997037198A1 Fluid sensor |
| 10/09/1997 | DE19614786A1 Filling level determination method using resistance alterations of positive temperature coefficient resistors |
| 10/09/1997 | DE19614785A1 Measuring unit for detecting rainfall amount in difficult or dangerous terrain |
| 10/09/1997 | DE19613813A1 Level gauge for measuring filling level of liquids with low conductivity especially water |
| 10/08/1997 | EP0799670A1 Machine tool with a rotably mounted part |
| 10/08/1997 | EP0799428A1 An impulse radar with swept range gate |
| 10/08/1997 | EP0799407A1 Electronic multi-purpose material level sensor |
| 10/08/1997 | CN2264365Y Pipeline liquid level signalling device |
| 10/08/1997 | CN2264364Y Multi-point electrode liquid level detecting instrument |
| 10/07/1997 | US5675259 Method and apparatus for measuring fluid flow |
| 10/07/1997 | US5673587 Device with a pneumatically levitated sensor for measuring the fill level of a container |
| 10/02/1997 | WO1997036153A1 Liquid level sensor |
| 10/01/1997 | CN2263782Y Electric float ball level transmitter |
| 10/01/1997 | CN2263781Y Improved sliding pipe level meter |
| 09/30/1997 | US5672975 Two-wire level transmitter |
| 09/30/1997 | US5672050 Apparatus and method for monitoring a sump pump |
| 09/30/1997 | US5671606 Method and apparatus for sensing and controlling the level of ice in an ice dispenser |
| 09/25/1997 | DE19611343A1 Measuring system esp. for determining water levels or flow measurement in pipes or power-stations |
| 09/25/1997 | DE19610885A1 Heat transmission measuring unit with measurement head acted on by fluid to be measured |
| 09/24/1997 | EP0796421A1 Filtering device particularly for a fuel gauge of a motor vehicle |
| 09/24/1997 | CN1160195A Liquid level detector |
| 09/24/1997 | CN1160194A Microwave window |
| 09/24/1997 | CN1160193A Probe having overhanging head casing offset to one side |
| 09/23/1997 | US5670710 Fluid quantity gauging systems |
| 09/23/1997 | US5670709 Transducer for the measurement of attributes of flowable media |
| 09/23/1997 | US5669956 Apparatus and method for molten metal depth detection |
| 09/23/1997 | US5669263 Probe for monitoring liquid with protection against leakage |
| 09/23/1997 | US5669262 Removable ultrasonic transducer with integral electrical disconnect |
| 09/23/1997 | CA2132601C Overflow detection system |
| 09/18/1997 | DE19706869A1 Unit for determining amount of liquid with solids such as faeces or waste in tanker vehicle |
| 09/17/1997 | EP0795740A1 Self testing optical liquid level sensor |
| 09/17/1997 | EP0795739A2 Tank indicator and method for determining the residual volume in a tank |
| 09/17/1997 | EP0794837A1 Measuring apparatus |
| 09/17/1997 | CN1159854A Barrier device |
| 09/16/1997 | USRE35607 Distance measuring method and apparatus therefor |
| 09/16/1997 | US5668536 Fluid level sensing apparatus |
| 09/16/1997 | US5666851 Fuel sender compensation arrangement |
| 09/13/1997 | CA2199927A1 Self testing optical liquid level sensor |
| 09/11/1997 | DE19608880A1 Display device for installation unit of closed fluid container esp. vehicle fuel tank |
| 09/11/1997 | DE19608866A1 Measuring device measures liquid level in dishwashers etc. |
| 09/10/1997 | EP0794059A2 Pressure regulator free ink ink jet pen |
| 09/10/1997 | EP0597081B1 Window mounted optical moisture sensor having light pipes with distal ends |
| 09/10/1997 | CN1158986A Water level detecting apparatus of water purifier |
| 09/09/1997 | US5665601 An aspirator/dispenser for use in an analyzer |
| 09/09/1997 | US5664699 Core sand preparation apparatus |
| 09/09/1997 | US5664456 Ultrasonic transducer |
| 09/04/1997 | DE19609389A1 Float based system determining liquid level esp. of fuel with float held by chain |
| 09/04/1997 | DE19607772A1 Position detection method for filler cap of fuel tank in motor vehicle |
| 09/03/1997 | EP0792441A2 Self-calibrating open-channel flowmeter |
| 09/03/1997 | CN2261620Y 数字水位计 Digital level gauge |
| 09/03/1997 | CN2261619Y Anti-corrosion sensing mechanism for external leading liquid level meter |
| 09/03/1997 | CN1158420A Determining method of phase compsn. of flowing medium in open and enclosed pipeline |
| 09/03/1997 | CN1158405A Beverage auto-feeding device for refrigerator |
| 09/02/1997 | US5663503 Invasive and non-invasive ultrasonic sensor with continuous and demand self-test |
| 08/28/1997 | WO1997031349A1 Pump control system |
| 08/27/1997 | EP0791811A2 System and method for measuring level of turbulent liquid |
| 08/27/1997 | EP0791810A2 Equipment for measuring the volume of malted beverage packed in a large tank |
| 08/27/1997 | EP0791809A2 Method and equipment in the beverage distribution to the large tanks of the distribution area of a brewery |
| 08/27/1997 | EP0791808A2 self-sealing sight glass for a fluid vessel |