| 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) |
|---|
| 07/10/1979 | US4160381 Floats and method for making same |
| 07/03/1979 | US4160239 Transponder system including an oscillator/ripple counter controlling a fixed Gray code logic network in circuit with a decoder/driver network for generating "red alert" end condition digital signals in a storage tank gauging system |
| 07/03/1979 | US4160168 Method of and means for determining the level of a metallic bath |
| 07/03/1979 | US4159647 Apparatus for measuring the flow quantity or associated parameters of a liquid with two ultrasonic transducers |
| 07/03/1979 | US4159646 Apparatus for measuring the flow quantity or associated parameters of a liquid with two ultrasonic transducers |
| 07/03/1979 | US4159638 Thermistor detector circuit and discriminating network for heat absorptive media |
| 06/26/1979 | US4159420 Apparatus for detecting oils and the like |
| 06/26/1979 | US4158964 Method and apparatus for determining liquid level |
| 06/19/1979 | US4158311 Pressure sensing device |
| 06/19/1979 | CA1056932A1 Liquid level gauge |
| 06/05/1979 | US4157038 Liquid meter with an enlarged range of indication mechanism |
| 06/05/1979 | US4157037 Apparatus and methods for controlling the feeding of wet materials |
| 06/05/1979 | US4157036 Level sensor for stored fluids and particulate material |
| 05/29/1979 | US4156365 Temperature indicator |
| 05/22/1979 | US4156149 Optical material level probe |
| 05/22/1979 | US4155254 Volume and density indicator system for liquids in tanks |
| 05/22/1979 | US4155167 Dipstick guide |
| 05/22/1979 | US4155166 Dipstick and plug assembly |
| 05/22/1979 | CA1055137A1 Thermal liquid level detector |
| 05/22/1979 | CA1054883A1 Apparatus for indicating the liquid level in a receptacle |
| 05/15/1979 | US4155013 Liquid level indicator |
| 05/15/1979 | US4154103 Collapsible liquid level measuring device |
| 05/15/1979 | CA1054396A1 Measuring device for tapping apparatus for foam-forming beverages |
| 05/08/1979 | US4152937 Liquid level sensor |
| 05/08/1979 | CA1054188A1 Master cylinder reservoir with vacuum relief diaphragm and guarded fluid level sensor |
| 05/01/1979 | CA1053778A1 Froth level monitor |
| 05/01/1979 | CA1053772A1 Apparatus for monitoring the liquid level in a tank |
| 04/24/1979 | US4150569 Level indicator for liquid contained in a reservoir |
| 04/24/1979 | CA1053024A1 Visual and electronic battery hydrometer |
| 04/19/1979 | WO1979000180A1 Indicator for a limit value and a measurement value |
| 04/17/1979 | US4149412 Level measuring apparatus |
| 04/10/1979 | US4149231 Capacitance-to-voltage transformation circuit |
| 04/10/1979 | CA1052455A1 Liquid leakage capacitive sensing probe |
| 04/03/1979 | US4147893 Gauging system providing remote readout of liquid levels in gasoline storage tanks |
| 04/03/1979 | US4147060 Adjustable frame liquid level measuring device |
| 04/03/1979 | US4147050 Apparatus for testing a capacitance responsive gaging system |
| 03/27/1979 | US4146869 Ultrasonic antenna assembly |
| 03/27/1979 | US4146834 Admittance measuring system for monitoring the condition of materials |
| 03/27/1979 | US4145927 Apparatus for determining the liquid level in a tank |
| 03/27/1979 | US4145914 Echo location system which provides for measuring liquid level and flow rate and flow volume of flowing liquids |
| 03/21/1979 | EP0001050A1 Liquid level measuring device |
| 03/20/1979 | US4144757 Devices for controlling the level of a liquid in a tank |
| 03/20/1979 | US4144756 Electromagnetic measurement of quantities in connection with electrically conducting liquid material |
| 03/20/1979 | CA1051107A1 Indicator for a dispensing device |
| 03/13/1979 | US4144521 Signal generator for a fluid-level indicator |
| 03/13/1979 | US4144517 Single transducer liquid level detector |
| 03/06/1979 | US4143270 Device for monitoring a radioactive filling level measuring installation |
| 03/06/1979 | US4142415 Device for continuously measuring the liquid level in a container |
| 03/06/1979 | US4142414 Ultrasonic flow meter |
| 03/06/1979 | CA1050114A1 Admittance measuring system for monitoring the condition of materials |
| 02/27/1979 | US4141311 Liquid level indicating device for movably mounted dispenser tanks |
| 02/27/1979 | US4141310 Poured floor level indicator |
| 02/27/1979 | CA1049635A1 Critical liquid-level warning circuit |
| 02/27/1979 | CA1049285A1 Liquid-level sensor utilizing ferromagnetic fluid |
| 02/20/1979 | US4140908 Digital point level switch method and apparatus |
| 02/20/1979 | US4140143 Apparatus and method for continuously monitoring and controlling the level of tar in a settling tank |
| 02/20/1979 | US4140015 Bearing joint and method of measuring the fluid level therein |
| 02/20/1979 | CA1048774A1 Self-retracting measuring device with wiping system for oil sumps and other containers |
| 02/13/1979 | US4139750 Liquid level indicating device |
| 02/13/1979 | US4138888 Electromagnetic measurement of level and/or distance for electrically conducting liquid material |
| 02/07/1979 | EP0000680A1 Level indicator for a liquid contained in a reservoir |
| 02/06/1979 | CA1047796A1 Sight glass assembly |
| 01/30/1979 | US4137558 Instrument probe assembly having continuous probe insulation |
| 01/30/1979 | US4137527 Liquid level sensing device |
| 01/30/1979 | US4136712 Sealed reservoir for brake master cylinder |
| 01/30/1979 | US4136561 Apparatus for automatically sensing and recording data in a sewage system |
| 01/23/1979 | US4135548 Liquid nitrogen level controller |
| 01/23/1979 | US4135398 Depth gauge and position marking device |
| 01/23/1979 | US4135397 Level measuring system |
| 01/23/1979 | CA1047142A1 Liquid level control system |
| 01/16/1979 | US4135186 Liquid level detecting apparatus |
| 01/16/1979 | US4135137 Magnetic position detectors |
| 01/11/1979 | WO1979000019A1 Apparatus for metering or distributing the volume of liquids |
| 01/10/1979 | EP0000319A1 Device for generating a light signal characteristic of the refractive index of a fluidand and its use |
| 01/09/1979 | US4134022 Frequency sensitive level detecting apparatus |
| 01/09/1979 | US4133454 Apparatus for determining the length of a column of tobacco or similar material |
| 01/09/1979 | US4133453 Toner residual amount detecting device |
| 01/09/1979 | US4133287 Reservoir with integrally formed window and method of making same |
| 01/02/1979 | US4132899 Liquid-level detector |
| 01/02/1979 | US4132259 Automatic control of the level of a molten metal bath |
| 01/02/1979 | CA1045404A1 Floating wave stilling chamber for liquid level indicator |
| 12/26/1978 | CA1045228A1 Liquid level gauging apparatus |
| 12/26/1978 | CA1044914A1 Fuel sender mechanism for a motor vehicle |
| 12/19/1978 | US4130146 Visual level indicator |
| 12/19/1978 | US4130018 Ultrasonic transducer with reference reflector |
| 12/12/1978 | US4129848 Platinum film resistor device |
| 12/12/1978 | US4129039 Dual gauge indicating device |
| 12/05/1978 | US4128400 Centrifuge |
| 12/05/1978 | US4128013 Pressure transducer |
| 12/05/1978 | CA1043879A1 Transducer having transformer with movable core |
| 11/21/1978 | US4126857 Probe-type liquid detector |
| 11/21/1978 | US4126041 Apparatus for detecting the level of a molten metal in a mold |
| 11/21/1978 | US4126040 Liquid level gauge |
| 11/21/1978 | CA1042680A1 Temperature-compensating liquid meter |
| 11/14/1978 | US4125022 Digital fuel quantity indicators |
| 11/14/1978 | US4125021 Apparatus for detecting conductive liquid level |
| 11/14/1978 | CA1042228A1 Water depth measuring device |
| 11/14/1978 | CA1042227A1 Dual liquid level indicating gauge |
| 10/31/1978 | US4123753 Ullage measuring device |
| 10/31/1978 | US4123707 Magnetic field sensor housed in a cooling device for sensing the charge in a shaft furnace or the like |