| 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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| 11/28/1984 | EP0126146A1 Meter provers. |
| 11/20/1984 | US4483299 Method for detecting abnormality in sensor means for detecting a parameter relating to intake air quantity of an internal combustion engine |
| 11/13/1984 | US4481806 Detector for a meter prover |
| 11/13/1984 | US4481805 Meter prover apparatus and method |
| 11/13/1984 | CA1177663A1 Calibrating bag for use on dispenser nozzles |
| 10/30/1984 | US4479377 Method and apparatus for measuring gas flow |
| 10/23/1984 | US4479116 Capacitive type fuel level and impurity indicator |
| 10/09/1984 | US4475377 Double wall meter prover |
| 10/02/1984 | US4474049 Meter proving method |
| 09/11/1984 | CA1174072A2 Apparatus for calibrating fluid flow meters utilizing digital techniques |
| 08/14/1984 | US4465088 Construction of low water level sensing device for hot water boiler |
| 08/07/1984 | US4463613 Calibratable turbine wheel gas meter with exchangeable measuring insert |
| 07/24/1984 | CA1171529A1 Calibrating unit |
| 07/17/1984 | US4460353 Drop controller |
| 07/17/1984 | US4459846 For analysis of internal combustion engines |
| 06/19/1984 | US4454747 High-low level control test method and apparatus |
| 06/07/1984 | WO1984002185A1 Meter provers |
| 05/30/1984 | EP0109570A2 Device for testing flow meters |
| 05/29/1984 | CA1168344A1 Integrity check for ultrasonic fluid interface sensing system |
| 05/22/1984 | CA1167965A1 Fluid register system |
| 05/15/1984 | US4448058 Respiratory gas analysis instrument having improved volume calibration method and apparatus |
| 05/02/1984 | EP0106940A2 An arrangement for the measurement of the difference between two flows in two separate ducts |
| 02/15/1984 | EP0100352A1 Meter provers |
| 12/22/1983 | WO1983004434A1 Method for calibrating cylindrical tanks |
| 12/13/1983 | US4419880 Apparatus for calibrating fluid flow meters utilizing digital techniques |
| 11/29/1983 | CA1157681A1 Apparatus for calibrating meter prover encoder |
| 11/29/1983 | CA1157680A1 Apparatus for calibrating fluid flow meters utilizing digital techniques |
| 11/01/1983 | USRE31432 Apparatus and method for determining the characteristic of a flowmeter |
| 10/18/1983 | US4409845 Calibrating bag for use on dispenser nozzles |
| 10/18/1983 | CA1155315A1 Control apparatus for meter prover |
| 09/27/1983 | US4406152 Method and apparatus for calibrating a railroad tank car |
| 09/21/1983 | EP0088834A1 Method and apparatus for gauging vessels |
| 09/07/1983 | EP0087455A1 Test device. |
| 09/06/1983 | US4402209 Liquid level float gauge calibration means |
| 08/18/1983 | WO1983002825A1 Meter provers |
| 08/17/1983 | EP0086145A1 Flow meter and device to mix in an additive with a fluid comprising such a flow meter |
| 06/28/1983 | US4389901 Fluid flow meter |
| 06/28/1983 | US4389886 Calibrating unit |
| 05/24/1983 | US4384469 Pitot-static tube tester system |
| 05/17/1983 | US4383544 Boiler low water level sensing device |
| 05/11/1983 | EP0078334A1 Calibratable gas turbine motor with interchangeable measuring unit |
| 05/03/1983 | CA1145623A1 Sensor for measuring leakage |
| 04/12/1983 | US4379991 Apparatus for accurately measuring the volume of a meter prover |
| 03/17/1983 | WO1983000924A1 Test device |
| 03/02/1983 | EP0072916A2 Apparatus for determining the characteristic of a flowmeter |
| 02/08/1983 | US4372147 Flow meter prover apparatus and method |
| 01/18/1983 | CA1139584A1 Self-correcting self-checking turbine meter |
| 01/14/1983 | EP0037419A4 Sensor for measuring leakage. |
| 01/04/1983 | CA1138670A1 Method for leakage measurement |
| 12/28/1982 | US4365504 Method and apparatus for field testing of anemometers |
| 12/28/1982 | US4365503 Apparatus for calibrating meter prover encoder |
| 12/22/1982 | EP0067348A2 Liquid level float gauge calibration means |
| 11/16/1982 | US4358947 Method and apparatus for volumetric calibration of liquid flow sensor output signals |
| 11/16/1982 | CA1135532A1 Constant accuracy turbine meter |
| 10/19/1982 | US4354376 Kit for calibrating pipettes |
| 09/28/1982 | CA1132358A1 Apparatus and method for determining the characteristic of a flowmeter |
| 09/14/1982 | US4348894 Fuel quantity measuring apparatus |
| 09/07/1982 | US4347731 Control apparatus for meter prover |
| 08/18/1982 | EP0057938A1 Device for measuring mass flow |
| 07/27/1982 | US4341107 Calibratable system for measuring fluid flow |
| 07/13/1982 | US4338809 Remote reading, liquid parameter measuring device and improved pump |
| 07/13/1982 | EP0038356A4 Method for leakage measurement. |
| 07/13/1982 | CA1127414A1 Meter proving method |
| 07/06/1982 | US4337639 Gas volume flow rate measurement apparatus |
| 06/29/1982 | US4336825 Liquid level control system |
| 05/25/1982 | US4331262 Calibratable automatic fluid dispenser |
| 05/19/1982 | EP0051779A1 Device for measuring the actual output of plant-protection agents |
| 05/11/1982 | US4328697 Transducer calibration device |
| 05/04/1982 | CA1122812A1 Gas measuring apparatus with standardization means, and method therefor |
| 04/20/1982 | US4325251 Apparatus for testing a control system for automotive vehicle |
| 04/13/1982 | US4324127 Spirometer calibration device and associated displacement detection system |
| 04/06/1982 | US4322972 Method and apparatus for flow-rate verification and calibration |
| 03/23/1982 | US4321590 Check mechanism for fluid level warning device in fluid reservoirs |
| 01/26/1982 | US4313168 Fluid register system |
| 01/21/1982 | WO1982000197A1 Device for measuring and controlling gas flow rates |
| 12/29/1981 | US4307601 Apparatus for calibrating flow meters and the like |
| 12/24/1981 | WO1981003701A1 Integrity check for ultrasonic fluid interface sensing system |
| 12/15/1981 | US4305281 Self-correcting self-checking turbine meter |
| 11/26/1981 | WO1981003379A1 Device for measuring the amount flowing through and/or the speed of flow of a medium |
| 11/17/1981 | US4300388 Method for leakage measurement |
| 11/10/1981 | US4299114 Method of testing the integrity of an ultrasonic system for sensing liquid-fluid interfaces |
| 10/28/1981 | EP0038356A1 Method for leakage measurement |
| 10/20/1981 | CA1111124A1 Fluid level detector test switch |
| 10/14/1981 | EP0037419A1 Sensor for measuring leakage |
| 09/22/1981 | US4290298 System for in situ meter testing |
| 09/16/1981 | EP0035888A2 Improvement in a fluid register system |
| 09/08/1981 | US4287750 Device for checking the functioning of gas measuring apparatus |
| 09/01/1981 | US4286471 Constant accuracy turbine meter |
| 08/04/1981 | US4281534 Sensor for measuring leakage |
| 06/09/1981 | US4271694 System for in situ meter testing |
| 05/13/1981 | EP0028575A1 Pig station and U-shaped calibrating conduit provided with such pig stations for volume flow rate metering apparatuses |
| 05/13/1981 | EP0028568A1 Calibrating device |
| 05/12/1981 | CA1100779A1 Turbine meter in-line checking apparatus and method |
| 04/21/1981 | CA1099532A1 Meter provers |
| 04/16/1981 | WO1981001055A1 Sensor for measuring leakage |
| 04/16/1981 | WO1981001054A1 Method for leakage measurement |
| 03/10/1981 | US4254653 Electromagnetic fuel injector calibration |
| 02/24/1981 | US4253156 Automatic flowmeter calibration system |
| 12/09/1980 | US4237921 Launching and arresting a discrete object in a pipeline |
| 09/30/1980 | US4225243 Gas measuring apparatus with standardization means, and method therefor |