| Patents for G01F 25 - Testing or calibrating of apparatus for measuring volume, volume flow, or liquid level, or for metering by volume (5,338) |
|---|
| 05/12/1992 | US5111683 Calibration method for a pulse response flowmeter |
| 05/12/1992 | US5111682 Apparatus and method for determining the flow characteristics of a volumetric flowmeter |
| 05/12/1992 | CA1300684C Determination of electrical capacitance and resistance |
| 04/29/1992 | CN1060714A Testing method of eddy currents flowmeter |
| 04/23/1992 | DE4033582A1 Bulk material portion dispensing arrangement - is for one or more materials, e.g. rice, dried vegetables and has wt. and vol. dosing devices in series |
| 04/21/1992 | US5107441 System for evaluating the flow performance characteristics of a device |
| 04/10/1992 | CA2052944A1 Automatically calibrated flow meter |
| 04/01/1992 | EP0478421A1 Sealing device with a liquid seal |
| 03/29/1992 | CA2051737A1 Fluid seal sealing apparatus |
| 03/10/1992 | CA1297156C Capacitance-type material level indicator |
| 02/26/1992 | EP0472363A2 An apparatus for determining the deviation in the level of liquid in a vessel |
| 02/25/1992 | US5090626 Apparatus for producing a very thin mist of power and controls for producing thin mist of power |
| 02/25/1992 | US5090240 Flowmeters |
| 02/20/1992 | WO1992002787A1 Process and device for the metered filling of containers with pourable media |
| 02/16/1992 | CA2049268A1 Apparatus for determining the deviation in the level of liquid in a vessel |
| 02/11/1992 | CA1295584C Calibration of fluid delivery equipment |
| 02/06/1992 | WO1992001908A1 Two-phase flow measurement |
| 02/04/1992 | US5086292 Tamper detection device for utility meter |
| 01/08/1992 | EP0464529A2 Level measuring device |
| 12/31/1991 | US5076767 Liquid flow metering |
| 12/31/1991 | US5076099 Zero point compensating circuit |
| 12/31/1991 | US5076093 Flow volume calibrator |
| 12/24/1991 | CA1293568C Electronic volume correctors |
| 12/12/1991 | DE4017490A1 Precision measurement of gas quantity - using measurement tube contg. piston and measurement of equilibrium pressure required to move piston at constant speed |
| 12/11/1991 | EP0461057A1 Process for measuring the rate of flow and apparatus for flow regulation purposes of a thermal regulation fluid in a conduit |
| 12/10/1991 | US5072416 Method and apparatus for calibrating a flowmeter using a master meter and a prover |
| 11/28/1991 | WO1991018266A1 Fluid pressure operated volume measurement with level calibration means |
| 11/27/1991 | CN2089622U Multi-pressure flow instrument strength test device |
| 11/19/1991 | CA1292129C Meter proving method and apparatus |
| 11/14/1991 | DE4015200A1 Controller for waste water system - associates delivery device parameters with flow rates measured using single flowmeter with probe |
| 11/05/1991 | US5062291 Calibration of flowmeters using a dissolved argon tracer technique |
| 10/17/1991 | DE4011949A1 Magnetic immersion probe - has measurement path contg. contacts actuated by magnet on float enabling contact testing |
| 10/01/1991 | US5052212 Dynamic leak detector |
| 10/01/1991 | US5052211 Apparatus for determining the characteristic of a flowmeter |
| 09/18/1991 | EP0446417A1 Liquid quantity measuring system |
| 09/17/1991 | US5050094 Compensating method and device for instrumental error in rotary displacement flowmeter |
| 09/17/1991 | US5048335 Capacitance-type material level indicator |
| 09/12/1991 | DE4007276A1 Testing appts. for gas service box in building - has shut=off valve in connecting union and manometer on handpiece |
| 09/10/1991 | CA1288610C Method and apparatus for calibrating plural pump fluid flow system |
| 09/03/1991 | US5044196 Method and apparatus for detecting deterioration of a hot-wire type sucked air flow quantity-detecting device for an engine |
| 08/21/1991 | EP0441999A1 Installation to monitor water level in a boiler |
| 08/21/1991 | CN2083288U Portable standard water meter |
| 08/07/1991 | EP0439839A1 Ultrasound calibrator |
| 07/17/1991 | EP0436546A1 Dusting apparatus. |
| 07/03/1991 | EP0406426A4 Device for automatically measuring the quantity of milk extracted by milking installation |
| 07/02/1991 | US5027661 Liquid flow metering |
| 06/20/1991 | DE3940082A1 Switching threshold adjuster for capacitive sensors - used for material detection involves using plastic model structure of dielectric constant and dimensions |
| 06/19/1991 | CA2027137A1 Liquid flow metering |
| 06/18/1991 | US5024109 Method and apparatus for performing hydrostatic correction in a pipette |
| 06/11/1991 | US5022257 Impulse sensor with amplitude calibration means |
| 05/14/1991 | US5014548 Method and apparatus for detecting deterioration of sucked air flow quantity-detecting device of engine |
| 05/07/1991 | US5012667 Apparatus and method for calibrating a measuring device |
| 05/02/1991 | EP0425328A1 Procedure and apparatus for calibrating a liquid volume meter |
| 04/30/1991 | US5010760 Multi-use fill height test devices |
| 04/18/1991 | WO1991005225A1 Improvements in and relating to electromagnetic flowmeters |
| 04/10/1991 | EP0421585A2 Zero point offset compensating circuit |
| 04/03/1991 | EP0420496A1 Improvements in and relating to electromagnetic flowmeters |
| 04/02/1991 | US5003810 For use in domestic gas metering |
| 03/20/1991 | EP0418171A1 Calibration method for an impulse response flowmeter |
| 03/19/1991 | US5000041 Control apparatus for turbine-type flow meter |
| 03/19/1991 | US5000031 Modified gas gauge |
| 03/13/1991 | EP0416163A1 Apparatus for correcting errors due to the construction of a flow meter having movable partitions |
| 03/05/1991 | US4996870 Apparatus and method for proving gas meters and improved sensor therefor |
| 03/05/1991 | US4996869 System for selecting valid K-factor data points based upon selected criteria |
| 02/27/1991 | EP0414364A1 Calibration of fluid delivery equipment |
| 02/22/1991 | CA2022015A1 Calibration of fluid delivery equipment |
| 02/05/1991 | US4989446 Ultrasound calibrator |
| 02/05/1991 | US4989445 Apparatus for automatically metering milk drawn by a milker |
| 02/05/1991 | CA1279915C Calibration technique for variable speed motors |
| 01/24/1991 | WO1991000988A1 Mobile calibrating apparatus for control of volume meters for liquid, especially propellant pumps in the traffic sector |
| 01/16/1991 | EP0407920A1 Device for and method of calibrating the drop volume of a drip-controlled infusion device |
| 01/16/1991 | CN1048594A Electromagnetic flow meter |
| 01/09/1991 | EP0406426A1 Device for automatically measuring the quantity of milk extracted by milking installation |
| 12/19/1990 | EP0273905B1 Improvements in hydrostatic tank gauge systems |
| 12/11/1990 | US4977528 Apparatus and method for determining the amount of material in a tank |
| 12/11/1990 | US4976134 Modified gas gauge |
| 11/29/1990 | WO1990014623A1 Device for dispensing disinfectants |
| 11/29/1990 | DE3916910A1 Einrichtung zum dosieren von desinfektionsmitteln Means for dosing of disinfectants |
| 11/22/1990 | EP0398708A1 Flowmeter |
| 11/20/1990 | US4972327 Apparatus for measuring the level of filling of a fuel tank |
| 11/06/1990 | US4968946 Apparatus and method for determining resistance and capacitance values |
| 10/25/1990 | DE3912781A1 Level measurement arrangement esp. for fuel container - has analogue probe contg. digital probe producing nonlinear variation at defined levels enabling calibration |
| 10/23/1990 | US4965756 Method and apparatus for calibration of electronic gas meters |
| 10/17/1990 | CN2064047U High efficiency wagon-carried flow detecting standard apparatus |
| 10/16/1990 | US4962661 Liquid level sensing switch actuator |
| 09/11/1990 | CA1273813A1 Apparatus and method for calibrating a sensor |
| 09/04/1990 | US4953386 Method and apparatus for proving electronic gas meters |
| 08/28/1990 | CA1273220A1 Hydrostatic tank gauge systems |
| 08/21/1990 | US4949570 Method and apparatus for calibrating agricultural granular material applicators |
| 08/14/1990 | US4947675 Unidirectional pipe line prover |
| 08/07/1990 | US4945754 Test water meter with digital display |
| 07/04/1990 | EP0376923A2 Method for determining the operating width and the sowing density of broadcasters |
| 07/03/1990 | US4938053 Fluid metering system |
| 07/03/1990 | CA1271048A1 Apparatus and method for determining the flow characteristics of volumetric flowmeter |
| 06/28/1990 | DE3843339A1 Arrangement for capacitive filling level measurement |
| 06/22/1990 | CA2006100A1 Method and apparatus for calibrating agricultural granular material applicators |
| 06/13/1990 | CN1042986A Calibrator for buoy-type level meter |
| 05/29/1990 | US4928514 Calibration container |
| 05/23/1990 | EP0369357A1 Control in method and system of a filling device |
| 05/22/1990 | US4926678 Method and apparatus for proving electronic gas meters at low flow rates |