| 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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| 04/01/1997 | US5616856 Device and method for detecting interfaces separating several phases by ultrasonic waves |
| 04/01/1997 | US5615573 Level detector |
| 03/27/1997 | WO1997011325A1 Device for sensing and controlling ice level |
| 03/26/1997 | EP0764835A2 Apparatus for measuring the filling level in a container |
| 03/26/1997 | CN2250517Y Level tube detector |
| 03/26/1997 | CN2250150Y Automatic monitoring and calling device for sick bed infusion |
| 03/25/1997 | US5614911 Radar-based method of level measurement |
| 03/25/1997 | US5614831 Method and apparatus for level gauging using radar in floating roof tanks |
| 03/25/1997 | US5614672 Apparatus for measuring the liquid contents of a tank |
| 03/25/1997 | US5613778 Method for collecting liquid temperature data from a fuel tank |
| 03/25/1997 | US5613399 Method for liquid level detection |
| 03/25/1997 | US5613398 Smart fuel tank module |
| 03/25/1997 | US5613303 Oil level gauge |
| 03/25/1997 | CA2098860C Method and apparatus for detecting the position of liquid-liquid interfaces |
| 03/20/1997 | WO1996035923A3 Acoustic transducer components |
| 03/20/1997 | DE19533875A1 Sewage effluent measurement in domestic and industrial premises |
| 03/19/1997 | EP0763723A2 Capacitance probe |
| 03/19/1997 | EP0711214B1 Continuous casting ingot mould |
| 03/19/1997 | EP0637373B1 Signal generating apparatus and method |
| 03/18/1997 | US5612227 Liquid boundary detecting method and apparatus and liquid removing method and apparatus |
| 03/18/1997 | US5611623 Apparatus for collecting liquid temperature data from a fuel tank |
| 03/18/1997 | US5611459 Method of converting an inverted bottle water dispensing system for use with an automatic bottle refill system |
| 03/18/1997 | US5611241 Integral welded sight glass for boilers |
| 03/18/1997 | US5611240 Level detector |
| 03/18/1997 | US5611239 Adapted to detect level /change of products in a storage vessel |
| 03/18/1997 | CA2099459C Apparatus and technique for fluid level determination in automatic transmissions |
| 03/12/1997 | EP0762090A1 Method for measurement of filling level of a liquid |
| 03/12/1997 | EP0762089A2 Level measuring device |
| 03/12/1997 | EP0762088A2 Method and device for detecting critical level for fluids and bulk materials |
| 03/12/1997 | EP0760929A1 Refrigeration system |
| 03/12/1997 | EP0760616A1 Apparatus for preparing a hot beverage |
| 03/12/1997 | EP0642655B1 An apparatus for product/water interface measurement in a product storage tank |
| 03/12/1997 | EP0617789B1 Process and device for taking representative milk samples |
| 03/12/1997 | CN1144908A Device and method for measuring nonmetal bulk cargo level with microwave |
| 03/11/1997 | US5610611 High accuracy electronic material level sensor |
| 03/11/1997 | US5610591 Liquid level alarm system |
| 03/11/1997 | US5609059 Electronic multi-purpose material level sensor |
| 03/06/1997 | WO1997008518A1 Level gauge using superconductive sensor wire |
| 03/06/1997 | WO1997008517A1 Method and device for measuring liquid levels |
| 03/06/1997 | WO1997008515A2 Self-calibrating open-channel flowmeter |
| 03/06/1997 | DE19634813A1 Signal from sensor filtering method for liquid level esp. motor vehicle fuel tank |
| 03/05/1997 | EP0760467A1 Method of determining the phase proportion of a medium in open and closed channels |
| 03/05/1997 | EP0760288A1 Pressure regulated free-ink ink jet pen |
| 03/05/1997 | EP0760087A1 Position encoder |
| 03/05/1997 | EP0624235B1 Disposable liquefied gas cylinder with remaining volume alarm and manufacturing method thereof |
| 03/05/1997 | EP0621944B1 Liquid level sensor |
| 03/05/1997 | EP0573408B1 Temperature-compensated apparatus for monitoring current having reduced sensitivity to supply voltage |
| 03/05/1997 | CN2248863Y Insertion type sensor for showing material level during weighing it |
| 03/04/1997 | US5608171 Distributed, unattended wastewater monitoring system |
| 03/04/1997 | US5608164 Electromagnetic acoustic transducer (EMAT) for ultrasonic inspection of liquids in containers |
| 03/04/1997 | US5607080 Chemical measuring system |
| 03/04/1997 | US5607002 Chemical refill system for high purity chemicals |
| 02/27/1997 | WO1997007051A2 Sealed observation element for sulfur recovery unit |
| 02/26/1997 | CN1143745A Infusion monitoring reporter |
| 02/25/1997 | US5606513 Transmitter having input for receiving a process variable from a remote sensor |
| 02/25/1997 | US5606125 Material level-interface control system |
| 02/25/1997 | US5606109 Liquid volume measuring apparatus |
| 02/25/1997 | US5605656 Pouring lens material into vessel, detecting change of output from temperature sensor when surface contacts probe, stopping filling |
| 02/25/1997 | CA2087343C Device to determine and/or monitor a predetermined filling level in a container |
| 02/25/1997 | CA2064974C Circuit and apparatus for the optical measurement of fluid levels |
| 02/20/1997 | WO1997006518A1 Window-closing safety system |
| 02/20/1997 | WO1997006448A1 High accuracy electronic material level sensor |
| 02/20/1997 | WO1997006447A1 Short range radio locator system |
| 02/20/1997 | WO1997006413A2 Disposable electromagnetic fluid level sensor |
| 02/20/1997 | WO1997005760A2 Ultra-wideband directional sampler |
| 02/20/1997 | DE19630604A1 Ink cartridge for ink jet printer, facsimile, plotter |
| 02/18/1997 | US5604315 Apparatus using a feedback network to measure fluid pressures |
| 02/18/1997 | US5603596 Locking assembly |
| 02/18/1997 | US5603238 Floatless gauge with resistive/conductive polymer |
| 02/13/1997 | WO1997005469A2 Electromagnetic acoustic transducer (emat) for ultrasonic inspection of liquids in containers |
| 02/13/1997 | CA2227998A1 Block copolymers |
| 02/12/1997 | EP0757785A1 Piezoelectric sensors |
| 02/12/1997 | EP0757784A1 Piezoelectric sensing systems |
| 02/11/1997 | US5602333 Apparatus for measuring the level of a liquid in a tank |
| 02/11/1997 | US5600998 Level sensor offset mounting mechanism |
| 02/11/1997 | US5600997 Carrier frequency sensing of fluids in vessels |
| 02/05/1997 | EP0681686A4 Capacitance-resistance position sensor. |
| 02/05/1997 | CN2246795Y Oil-water interface measuring device for large tank |
| 02/04/1997 | US5600528 Heater cut off circuit and method |
| 02/04/1997 | US5598602 Dipstick oil wiper |
| 01/29/1997 | EP0755798A1 Ink-supply control device and stencil printing machine having the same |
| 01/29/1997 | EP0755519A1 Automated continuous and random access analytical system and components thereof |
| 01/29/1997 | EP0700528A4 Electromagnetic hidden object detector |
| 01/29/1997 | CN2246285Y Differential pressure electrical terminal charge level monitor |
| 01/28/1997 | US5598103 Interface distance sensor and its application to pressure sensing |
| 01/28/1997 | US5597950 Surfactant monitoring by foam generation |
| 01/28/1997 | CA1338881C Coating-responsive condition monitoring system |
| 01/23/1997 | DE19608405A1 Solar heating system with a hot water storage vessel with frost protection |
| 01/22/1997 | EP0754292A1 Process for checking the tolerance of measured values |
| 01/22/1997 | EP0615626B1 Process for suppressing the influence of extraneous radiation on radioactive measurement processes |
| 01/22/1997 | EP0544784B1 A differential float means and sensor means incorporating same |
| 01/22/1997 | CN2245456Y Infusion monitor |
| 01/21/1997 | US5596351 Ink level sensing on a pen carriage in a pen plotter |
| 01/21/1997 | US5596188 Clock recovery system and rotational detection circuit |
| 01/21/1997 | US5596139 Resonant liquid detecting device |
| 01/21/1997 | US5595088 Liquid level monitoring system for underground storage tanks and method for its installation |
| 01/16/1997 | WO1997001745A1 System for determining whether or not a dosing system reservoir is empty |
| 01/15/1997 | EP0753750A2 Method and apparatus for aspirating and dispensing sample fluids |
| 01/15/1997 | EP0753722A2 Monitoring system for liquid level control |
| 01/15/1997 | EP0753411A2 Ink jet recording apparatus with device for detecting the presence or absence of ink |