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)
11/1995
11/29/1995CN2213983Y Multifunction fluviograph
11/28/1995US5469749 Multiple-function fluid measuring and transmitting apparatus
11/28/1995US5469739 On-line fishing depth indicator with encapsulated components
11/23/1995WO1995031699A1 System and method for sensing material level within a container
11/23/1995WO1995031698A1 Method of determining the level of the contents of sludge pumping vehicles
11/23/1995WO1995031696A1 Position encoder
11/23/1995DE4417311A1 Fluid level measuring probe esp. for heavy oil
11/23/1995CA2190492A1 System and method for sensing material level within a container
11/22/1995EP0683383A1 A damper circuit for a device for indicating the level of a liquid in a tank, particularly for motor vehicles
11/22/1995EP0683353A1 Device for controlling liquid level and driving a pump for its delivery
11/22/1995EP0683304A2 Borehole logging tool
11/22/1995EP0489051B1 Measuring device and process for determining the level in fluid containers, preferably for tank installations.
11/22/1995CN2213329Y Forward read magnetic liquid level gage for constant pressure liquid storage tank
11/22/1995CN1030292C Jig for detecting height of wavy solder surface, method of controlling height of solder surface
11/15/1995EP0681961A1 A method and an apparatus for registering a level of contents
11/15/1995EP0681905A1 Recoating of stereolithographic layers
11/15/1995EP0681904A2 Stereolithographic apparatus with means to measure and control the level of fluid
11/15/1995EP0681686A1 Capacitance-resistance position sensor
11/15/1995CN2212780Y Alarm for water level in boiler
11/15/1995CN2212779Y Liquid level sensor
11/15/1995CN2212775Y Bar-type liquid level and liquid temp transducer
11/14/1995US5465766 Chemical refill system for high purity chemicals
11/14/1995US5465629 Liquid dispensing system with acoustic sensing means
11/14/1995US5465619 For detecting the level of material in a container
11/12/1995CA2148999A1 Liquid level monitoring system for underground storage tanks and method for its installation
11/09/1995WO1995030131A1 A method for the mass determination of the content of pressure containers and a device for executing this method
11/09/1995DE4416225A1 Liquid level float gauge for inflammable liquids
11/09/1995DE4416038A1 Rainwater utilisation device for indoor domestic applications
11/08/1995EP0680935A1 Bed height sensing device for biological reactor
11/08/1995CN2212194Y Liquid surface sensor in pressure container
11/08/1995CN2212193Y Voice identifichtion material position measuring and controlling instrument
11/08/1995CN2212192Y Reflecting metering scale
11/08/1995CN1111355A 电容测量装置 Capacitance measuring apparatus
11/08/1995CN1111346A High pressure, leak resistant, explosionproof capacitance probe
11/07/1995US5463905 Portable non-invasive flowmeter for partially filled pipe
11/07/1995US5463895 Sample pipetting method
11/06/1995CA2144027A1 Bed height sensing device for biological reactor
11/02/1995WO1995029389A1 Piezoelectric sensors
11/02/1995WO1995029388A1 Piezoelectric sensing systems
11/02/1995WO1995029387A1 Powder level indicator
11/02/1995EP0679875A1 Liquid level detector with an immersible probe
11/02/1995EP0552361B1 Tank level gauge of driven sensor type
11/02/1995DE19509847A1 Detecting boundary between two liquid layers medical research
11/02/1995CA2188547A1 Piezoelectric sensing systems
11/02/1995CA2188545A1 Piezoelectric sensors
11/01/1995CN2211595Y Rotary level sensor
11/01/1995CN2211280Y Medical alarm for transfusion
10/1995
10/31/1995US5463378 Proximity detection system and oscillator, and method of using same
10/31/1995US5463228 Apparatus for the detection of a fluid phase boundary in a transparent measuring tube and for the automatic exact metering of an amount of liquid
10/26/1995WO1995028622A1 Float-controlled level switch with adjustable switching points
10/26/1995WO1995019559A3 Ultrasonic transducer system with temporal crosstalk isolation
10/26/1995DE4413781A1 Determining list of floating and/or immersed devices
10/25/1995CN2211065Y Flexible coding-belt level sensor
10/25/1995CN2211064Y Wireless remote-measuring monitor for the lever of water-tower
10/24/1995US5461321 Apparatus and method for measuring capacitance from the duration of a charge-discharge charge cycle
10/24/1995US5460007 Ice level sensor for an ice maker
10/24/1995CA2108306C High resolution acoustic pulse-echo ranging system
10/19/1995WO1995027985A1 Non-condensable gas tolerant condensing chamber
10/19/1995WO1995027884A1 Process for checking the tolerance of measured values
10/19/1995DE4413311C1 Schwimmergesteuerter Niveau-Schalter (III) mit verstellbaren Schaltpunkten Float type level switch (III) with adjustable switching points
10/19/1995DE4412479A1 Sludge depth and concentration determined by hydrostatic pressure detector assembly
10/18/1995CN1110402A Contact type object detecting head
10/17/1995US5458566 Reservoir volume sensing systems for autologous blood recovery
10/17/1995US5457990 Method and apparatus for determining a fluid level in the vicinity of a transmission line
10/17/1995US5457965 Low refrigerant charge detection system
10/17/1995CA2003742C Monitoring process on machine assemblies with central lubrication in rotary printing presses
10/12/1995DE4412386A1 Conductive level measurement circuit for minimum-maximum controller
10/12/1995DE4412068A1 Servicing batteries esp. for adjusting liquid level of cells of one or more batteries
10/12/1995DE4411961A1 Motor vehicle fuel gauge assembly with variable depth tank mounting
10/12/1995DE4410515A1 Monitor for checking depth of fill of transparent container
10/11/1995EP0676649A1 Radar method and apparatus for range finding
10/11/1995EP0676625A2 Device for measuring liquid levels
10/11/1995EP0676624A2 Ultrasonic fluid level sensing without using a stillwell
10/11/1995EP0676037A1 Device for measuring the level of container contents
10/11/1995EP0676027A1 Determining the amount of working fluid in a refrigeration or heat pump system.
10/11/1995CN2209794Y Plug-in type liquid level sensor
10/10/1995US5457394 Impulse radar studfinder
10/10/1995US5457352 Ultrasonic converter
10/10/1995US5456295 Vehicle transmission oil filling apparatus and method
10/10/1995US5456114 Elastic wave sensing system
10/10/1995US5456108 Baffle assembly for ultrasonic liquid level measuring probe
10/06/1995CA2146188A1 Distance measuring radar process and device
10/05/1995DE19511371A1 Differential pressure or water level measurement device
10/04/1995EP0675344A1 Level indicator
10/03/1995US5454938 Bed height sensing device for biological reactor
09/1995
09/28/1995WO1995026015A1 Liquid dose dispenser
09/27/1995EP0674157A1 Method for detecting at least one physical quantity
09/27/1995CN2208699Y Integral liquid level display and alarm device for boiler
09/27/1995CN1109164A Improved overflow detection system
09/26/1995US5452611 Ultrasonic level instrument with dual frequency operation
09/21/1995DE4408870A1 Bistable switching contact for external mounting on liquid level pipes
09/20/1995EP0672895A1 Liquid charging method and lens production method
09/19/1995US5452076 Fluid detection system
09/19/1995US5450764 Displacement sensor
09/14/1995DE4407897A1 High frequency sensor with contactless switching and measuring
09/14/1995DE4407823A1 Level measurement appts.
09/14/1995DE4407369A1 Transition time measurement method
09/13/1995CN2207571Y Locomotive water gage
09/13/1995CN2207570Y Overflow alarm of solar water heater
09/12/1995US5450067 Water level detector and indicator system