| Patents for G01F 25 - Testing or calibrating of apparatus for measuring volume, volume flow, or liquid level, or for metering by volume (5,338) |
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| 11/25/1987 | CN87101914A Detecting method and device of gas flowmeter instrument constant |
| 11/19/1987 | WO1987007017A1 Method for determining the k-factor of a flowmeter |
| 11/17/1987 | US4706492 Method and apparatus for determining real gas effects in critical flow nozzles |
| 11/11/1987 | CN87102221A Callibration system for mechanical gas volume corrector |
| 11/10/1987 | US4706203 Capacitive gauging method and apparatus |
| 10/28/1987 | EP0242937A2 Calibration system for mechanical gas volume corrector |
| 10/28/1987 | CN86207923U Float-type large level stabilizing device |
| 10/14/1987 | EP0240655A1 Method for determining the working width and the distribution density of centrifugal distributors |
| 10/14/1987 | CN87201726U New-type effective flow-calibrating device |
| 09/16/1987 | EP0236681A2 Method and apparatus for measuring and providing corrected gas flow |
| 09/15/1987 | US4693122 Method and apparatus for calibrating a material-spreading applicator |
| 09/09/1987 | EP0236142A2 Sprayer and nozzle calibrator |
| 09/03/1987 | DE3606756A1 Method and device for the calibration of flowmeters for gases |
| 08/25/1987 | US4688425 Direct-heated flow measuring apparatus having film resistor |
| 08/20/1987 | DE3604449A1 Method for determining the working width and the broadcast density of disc broadcasters |
| 08/11/1987 | US4685324 Flowmeter having a thermoresistant element and its calibration process |
| 07/15/1987 | EP0126146B1 Meter provers |
| 07/01/1987 | EP0226602A1 Apparatus and method for calibrating a sensor |
| 06/23/1987 | US4674317 Apparatus for determining the flow characteristic of a volumetric flowmeter |
| 06/23/1987 | US4674316 Calibration system for mechanical gas volume corrector |
| 06/19/1987 | DE3544095A1 Device for calibrating analog real-time signals |
| 06/03/1987 | EP0223813A1 Meter provers |
| 05/26/1987 | US4669052 Apparatus and method for calibrating a sensor |
| 05/12/1987 | US4663960 Method of calibrating and calibrating device for agricultural chemical |
| 04/21/1987 | US4658634 Meter prover |
| 03/17/1987 | US4649734 Apparatus and method for calibrating a flow meter |
| 03/17/1987 | CA1219147A1 Liquid flow meter |
| 03/12/1987 | WO1987001446A1 Improvements in hydrostatic tank gauge systems |
| 02/24/1987 | US4645174 Mounting arrangement for a critical flow device |
| 01/29/1987 | WO1987000622A1 Apparatus and method for determining the flow characteristic of a volumetric flowmeter |
| 01/20/1987 | US4637244 Meter provers |
| 01/15/1987 | WO1987000267A1 Apparatus and method for calibrating a sensor |
| 01/14/1987 | EP0208045A2 Method for determining the accuracy of a gas measurement instrument |
| 12/30/1986 | US4631951 Arrangement for testing a flow meter |
| 12/17/1986 | EP0205056A1 Flow controller |
| 12/16/1986 | US4628724 Meter provers |
| 12/10/1986 | EP0204183A1 Method for calibrating a hot wire air mass flow meter and hot wire air mass flow meter |
| 12/10/1986 | EP0204065A1 Gas flow calibration device including a critical flow device |
| 12/09/1986 | US4627267 Apparatus and method for determining the flow characterstic of a volumetric flowmeter |
| 12/04/1986 | WO1986007146A1 Meter provers |
| 11/19/1986 | CN85103978A Transfer calibration system |
| 11/12/1986 | CN86100848A Mounting arrangement for a critiacl flow device |
| 11/12/1986 | CN86100663A Method for determining the accuracy of a gas measurement instrument |
| 10/29/1986 | EP0198947A1 Liquid level checking system for vehicles |
| 10/28/1986 | US4619134 Testing device for flow meters |
| 09/03/1986 | EP0193158A1 Apparatus and method for checking the quantity of liquid delivered by a dispenser |
| 08/27/1986 | EP0192352A2 Test equipment |
| 08/19/1986 | US4606218 Compact bidirectional meter prover mechanism |
| 07/23/1986 | EP0187941A1 Device for the calibration of injection pumps |
| 07/22/1986 | CA1208336A1 Level indicator control system for use with capacitance probes in tank containing substances |
| 07/16/1986 | EP0187562A1 Flow meter with a thermally resistant element |
| 07/08/1986 | US4599696 System for diagnosing an internal combustion engine |
| 07/08/1986 | US4598742 Method and apparatus for monitoring liquid stock in a storage tank |
| 06/11/1986 | EP0183721A1 Transfer calibration system |
| 05/28/1986 | EP0182082A1 Dispenser-monitoring device |
| 05/27/1986 | USRE32157 Flow meter prover apparatus and method |
| 05/27/1986 | US4590790 Method for determining the accuracy of a gas measurement instrument |
| 05/20/1986 | US4590575 Dielectric compensated level control system for use in tanks containing substance |
| 05/07/1986 | EP0056382B1 Integrity check for ultrasonic fluid interface sensing system |
| 05/06/1986 | US4586529 Ball launcher for standard tube for monitoring a volume meter |
| 04/29/1986 | US4585552 System for the measurement of the difference between two fluid flows in separate ducts |
| 04/29/1986 | US4584864 Method and apparatus for proving and factoring a meter stack |
| 03/05/1986 | EP0173253A2 Dosing control device and method for use of the device |
| 02/26/1986 | EP0172465A1 Flowmeter testing apparatus |
| 02/11/1986 | US4569227 Test station for fuel injection pump |
| 02/11/1986 | US4569221 Portable electro-pneumatic calibrator |
| 02/11/1986 | US4569220 Flow prover with seal monitor |
| 01/28/1986 | US4566307 Pipeline flow measurement proving system |
| 01/07/1986 | US4562734 System for measuring quantity of liquid contained in tank |
| 12/11/1985 | EP0087455B1 Test device |
| 11/21/1985 | WO1985005177A1 Transfer calibration system |
| 10/29/1985 | US4549426 Compact flow prover |
| 10/15/1985 | US4546647 System for diagnosing an internal combustion engine |
| 09/03/1985 | US4538446 Technique for measuring gas conversion factors |
| 09/03/1985 | US4538445 Liquid flow meter |
| 08/27/1985 | US4537058 Volume calibration syringe |
| 07/16/1985 | US4528839 Transfer calibration system |
| 07/10/1985 | EP0147806A2 Test device for flow meters |
| 07/03/1985 | EP0146665A2 Fluid commodity delivery system |
| 07/02/1985 | US4526027 Pre-calibrated fuel quantity capacitive probe |
| 06/25/1985 | US4524606 Low flow calibrator |
| 06/11/1985 | US4522059 Flowmeter and installation for mixing an additive in a liquid |
| 06/04/1985 | US4520650 Field-portable calibration unit for electromagnetic flow meters |
| 05/28/1985 | CA1187713A1 Apparatus for testing flow meters |
| 05/21/1985 | US4517823 In a pipe |
| 05/14/1985 | USRE31884 Method for leakage measurement |
| 04/09/1985 | US4509373 Calibration circuit for ultrasonic flowmeter |
| 04/02/1985 | US4507952 Apparatus for testing flow meters |
| 03/05/1985 | US4502319 Multi-tester for water treatment metering apparatus |
| 03/05/1985 | US4502318 Method and apparatus for calibrating flow meters |
| 02/26/1985 | US4501972 Float detection system |
| 02/20/1985 | EP0133395A1 Sphere launcher for the standard prover tube of a volume counter |
| 02/05/1985 | CA1181964A1 Apparatus for determining the characteristic of a flowmeter |
| 01/23/1985 | EP0132167A1 Functioning mode test circuit for a fluid meter |
| 01/01/1985 | US4491023 Means for checking and/or measuring the actual amount of sprayed plant protective substances |
| 12/25/1984 | US4490077 Apparatus for continuously measuring flow rate of fine material flowing through transport pipe |
| 12/25/1984 | US4489615 Fluid flow meter |
| 12/18/1984 | CA1179562A1 Boiler low water level sensing device |
| 12/11/1984 | CA1179120A1 Liquid level float gauge calibration means |
| 11/28/1984 | EP0126262A1 Device for the operation and monitoring of a dosage apparatus |