| 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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| 08/24/1993 | US5237837 Ice making machine |
| 08/19/1993 | WO1993016425A1 Method and device for monitoring the oil level in the oil sump of for instance an internal-combustion engine, in particular a ship's diesel |
| 08/19/1993 | WO1993016140A1 Polyamidoamines in the circulating waters of wet separators |
| 08/19/1993 | DE4204804A1 Polyamidoamine in umlaufwaessern von nassabscheidern Polyamidoamines umlaufwaessern scrubbers |
| 08/19/1993 | DE4204502A1 Verfahren und vorrichtung zum ueberwachen des oelstandes im oelsumpf einer verbrennungskraftmaschine o. dgl., insbesondere eines schiffsdieselmotors Method and device for supervise the oelstandes in oelsumpf a combustion-engine o. The like., In particular a marine diesel engine |
| 08/19/1993 | DE4204212A1 Capacitive differential level sensor unaffected by dielectric constant change - comprises isolated surfaces with capacitance on immersion measured using constant ratio of capacitances |
| 08/18/1993 | EP0555710A2 Liquid transfer device for a clinical analyser |
| 08/18/1993 | EP0555526A1 Assembly for floating potential capacitance measurement, in particular for capacitive filling level measurement |
| 08/18/1993 | CN2140517Y Gravity type liquid level shifting conveyor |
| 08/12/1993 | DE4203967A1 System for determining and monitoring preset filling level in container - has piezoelectric vibration system with sensor for contacting filling medium in container if preset level is exceeded and evaluation circuit producing signal depending upon amplifier output frequency. |
| 08/12/1993 | DE4203715A1 System for establishing or monitoring predetermined filling level in container - has two vibration elements arranged coaxially to each other which project in container contg. filling medium to be monitored one of which is fitted to diaphragm |
| 08/12/1993 | DE4203694A1 System for determining filling level in tank - forms sensor as flexible container linked to display in operators cabin by pipe and contg. liquid displaceable by weight of goods |
| 08/11/1993 | EP0423143B1 Level indicator |
| 08/11/1993 | CN1075204A Full-automatic level measuring and warning equipment for powder material storing bin |
| 08/10/1993 | US5235179 Evanescent wave liquid level sensor with density compensation |
| 08/10/1993 | US5234527 Liquid level detecting device and a processing apparatus |
| 08/10/1993 | US5233870 Single post stud with locking blade |
| 08/05/1993 | WO1993015382A1 Process and device for detecting the level in a tank |
| 08/05/1993 | DE4203099A1 Verfahren und vorrichtung zur tankfuellstandserkennung Method and device for tankfuellstandserkennung |
| 08/04/1993 | CN2139691Y Dynamic state water level display device |
| 08/03/1993 | US5233352 Level measurement using autocorrelation |
| 08/03/1993 | US5233329 Filter with hysteresis for trip point applications |
| 08/03/1993 | US5232043 Device for identifying the solid-liquid interface of a melt |
| 08/03/1993 | US5231728 Disposable wiper for a dipstick |
| 08/03/1993 | CA1320846C Chip level indicator with differential transformer |
| 07/28/1993 | EP0552913A2 Condensate removal device for air conditioners |
| 07/28/1993 | CN2139265Y Horizontal oil tank level-meter |
| 07/28/1993 | CN1021709C Plate mica two-colour fluviograph |
| 07/27/1993 | US5230439 Container having therein means for detecting levels of liquid |
| 07/22/1993 | DE4201360A1 Level measurement arrangement - contains vibrating rods on membrane coupling them to piezoelectric stimulation-detection arrangement |
| 07/21/1993 | CN1021668C Method for measuring longitudinal-distribution and level of oil in storage tank and its measuring apparatus |
| 07/20/1993 | US5229766 Marine fuel tank pollution control apparatus |
| 07/20/1993 | US5229750 Fail-safe leak detector including independent and repetetive sensing means |
| 07/20/1993 | US5228340 Method and apparatus for heat radiating type level sensor measurement of liquid level |
| 07/20/1993 | US5228339 Automatic tank gauging system with a quasi static reference subsystem |
| 07/20/1993 | US5228304 Refrigerant loss detector and alarm |
| 07/15/1993 | DE4200603A1 Dispensing of charges of medium with specified measurement parameter demand value - using dispensing system with measurement transducer and adjustable extraction device |
| 07/14/1993 | EP0550440A1 Automated container volume measuring device and container equipped therewith. |
| 07/14/1993 | CN2138289Y Magnetic floating water level needle |
| 07/14/1993 | CN2138288Y Balanced liquid level sensor with two tubes and two hammers |
| 07/13/1993 | US5226320 Measuring device and process for determining the fill level in fluid containers, preferably for tank installations, with a sound waveguide |
| 07/08/1993 | WO1993013392A1 Digital smoothing circuit for electronic level indicators |
| 07/08/1993 | WO1993013389A1 Pump station flowmeter with high frequency detector |
| 07/08/1993 | WO1993012902A1 Device and method for skull-melting depth measurement |
| 07/08/1993 | CA2126310A1 Digital anti-slosh system |
| 07/08/1993 | CA2112984A1 Device and method for skull-melting depth measurement |
| 07/07/1993 | CN2137797Y Electronic controlling device for liquid level displaying |
| 07/07/1993 | CN2137784Y Passive three-wire sensor for water level |
| 07/07/1993 | CN2137783Y Float-ball type sensor for mud level in pound bottom |
| 07/07/1993 | CN1074035A Pneumatic optical-fibre precise liquid level indicator |
| 07/06/1993 | US5224379 Float activated gauge |
| 06/30/1993 | CN2137373Y Level supervision and control unit |
| 06/29/1993 | US5223819 Material level indicating apparatus with status light and external test features |
| 06/29/1993 | CA1319536C Device to measure the level of liquid metal in a crystallizer of a continuous casting ingot mould |
| 06/29/1993 | CA1319532C Apparatus and method for monitoring liquid levels |
| 06/24/1993 | WO1993012413A1 Process and device for taking representative milk samples |
| 06/24/1993 | WO1993012408A1 Microwave-based point liquid level monitoring system |
| 06/24/1993 | WO1993012407A1 Non-hydrogenous process level measurement |
| 06/24/1993 | DE4243077A1 Taking representative samples form milk deliveries |
| 06/24/1993 | DE4231849A1 Washing machine or dishwasher has pressure transmitter - as water level regulator and pressure recorder nipples having two ducts to prevent clogging |
| 06/24/1993 | DE4204414C1 Pulse echo level measuring instrument with pulse transceiver - has circuits to derive distance between transceiver and reflection surface from time between single or multiple echo pulses |
| 06/24/1993 | DE4142183A1 Slurry container - contains level measurement and indication arrangement with pull chord, float and indicator in frame clamped to container |
| 06/24/1993 | CA2124695A1 Microwave-based point liquid level monitoring system |
| 06/24/1993 | CA2122130A1 Non-hydrogenous process level measurement |
| 06/23/1993 | EP0547384A1 Dipstick for measuring oil level |
| 06/23/1993 | CN2136977Y Two-purpose wide visual field two-colour fluviograph |
| 06/22/1993 | US5221916 Heated extended resistance temperature sensor |
| 06/22/1993 | CA1319270C Pressurized magnetic float level indicator for recipients containing liquids at high pressure and temperature |
| 06/22/1993 | CA1319268C Multiple diaphragm probe seal |
| 06/16/1993 | CN2136463Y Electric resistance telemetering water level sensor |
| 06/16/1993 | CN2136462Y Oblique height finder for level in storage bin |
| 06/15/1993 | US5220514 Method & apparatus for liquid level conductance probe control unit with increased sensitivity |
| 06/15/1993 | US5220310 Liquid level detector which overcomes hysterisis in the detector element |
| 06/15/1993 | US5220180 Fiber optic fuel and liquid gauge having an open rigid "J" shaped tube |
| 06/15/1993 | US5218971 Apparatus for automatically measuring a quantity of urine |
| 06/10/1993 | WO1993011449A1 Laser diode liquid-level/distance measurement |
| 06/10/1993 | CA2120504A1 Laser diode liquid-level/distance measurement |
| 06/09/1993 | EP0545530A1 Liquid level measuring system and its use |
| 06/09/1993 | EP0544945A1 Optical inspection apparatus and system comprising such an apparatus |
| 06/09/1993 | EP0544784A1 A differential float means and sensor means incorporating same. |
| 06/09/1993 | EP0321485B1 Distance and temperature measuring system for remote locations |
| 06/09/1993 | DE4140113A1 Adaptor for contactless ultrasonic level measurement in liquid gas cylinder - is screwed onto gas cylinder in place of shut=off valve, which may be screwed onto side of adaptor |
| 06/09/1993 | CN2135772Y Liquid level electronic alarm device |
| 06/09/1993 | CN2135771Y Boiler water level monitoring controller |
| 06/08/1993 | US5216919 Fuel level sender |
| 06/02/1993 | EP0544173A1 Method and device for determination of the presence of a liquid in a container |
| 06/02/1993 | CN2135143Y Oil level monitor for underground oil tank |
| 06/01/1993 | US5216421 Indicator for small watercraft |
| 06/01/1993 | US5214961 Pressure sensor |
| 06/01/1993 | CA1318724C Vibrating strip transducer |
| 05/27/1993 | WO1993010434A1 Apparatus and method for locating sediment in a container |
| 05/27/1993 | WO1993009715A1 Measurement cell for a monitoring appliance of a body fluid flowing out of a catheter |
| 05/27/1993 | DE4138262A1 Gas storage balloon, e.g. for condensing helium, - has wt. on upper side for generating overpressure connected via cables to counterweight |
| 05/27/1993 | CA2123425A1 Apparatus and method for locating sediment in a container |
| 05/26/1993 | EP0543413A1 Resistor type physical quantity sensor |
| 05/26/1993 | CN1072490A Condensate tank of dehumidifier |
| 05/26/1993 | CN1072364A Jig for detecting height of wavy solder surface, method of controlling height of solder suface |
| 05/25/1993 | US5212992 Capacitive probe sensor with reduced effective stray capacitance |
| 05/25/1993 | US5212979 Testing device for measurement of a leak rate of a spraying or injection valve |
| 05/25/1993 | CA1318389C Nonintrusive acoustic liquid level sensor |