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8966971 Vehicle engine with fluid measuring system  
The present disclosure relates to a fluid measuring system for use in a vehicle engine. The engine includes a fluid return channel through which a tube is inserted. The fluid measuring system also...
8875571 Detector of presence of a liquid  
A detector for detecting the presence of a liquid comprising a probe sensitive to the presence of the liquid on contact with it, and a casing surrounding the probe comprising: a) an opening for...
8850884 Liquid tank and fuel cell  
Provided are a liquid tank capable of reducing an influence of disturbance on measurement results and measuring accurate volume, and a fuel cell using the same. One face of a liquid container...
8776595 Temperature compensated hydrostatic liquid level sensor  
An outer passive reference resistor loop is printed along the length of an elongated substrate along with an inner active liquid level sensing resistor loop, whereby the reference resistor loop is...
8656773 Rationality diagnostic device for alcohol concentration sensor  
A rationality diagnostic device for an alcohol concentration sensor includes a capacitance-type remaining fuel amount sensor as a remaining fuel amount sensor disposed in a fuel tank. The...
8549910 Fuel system electro-static potential differential level sensor element and hardware/software configuration  
A sensor assembly for sensing the level and type of fuel in a reservoir is provided. The sensor assembly includes a pair of electrically conductive plates extending longitudinally between opposite...
8474314 Fill level switch and sensor element for a fill level switch  
A fill level switch (1) for measuring the fill level of a medium in a container (2), having a sensor element (3) for contacting the medium, a sender (4) for applying an electromagnetic emission...
8448665 Fuel overflow alarm system  
An illustrative embodiment of a fuel overflow alarm system includes a fuel tank, a pressure-sensing tube provided in fluid communication with the fuel tank, a pressure sensor provided in fluid...
8442783 Method of and apparatus for recording fuel supplied to a vehicle  
A fuel measuring device, for mounting on the inlet to a vehicle fuel tank, has a sensor for recording a flow rate of fuel flowing through the inlet into the vehicle fuel tank. A processor for...
8353209 Radio frequency tank eigenmode sensor for propellant quantity gauging  
A method for measuring the quantity of fluid in a tank may include the steps of selecting a match between a measured set of electromagnetic eigenfrequencies and a simulated plurality of sets of...
8132456 Fuel level indicator for riding lawn equipment  
A fuel level indicator for riding lawn equipment with a fuel tank pivotably mounted under the operator seat. A fuel level indicator arm is pivotably mounted under the fuel tank and has a first end...
8104500 Acoustic liquid level detection  
The filling noise generated inside a pressurized container when liquid is injected into the container is detected at the outer end of a vent tube which extends into the container. When the level...
8047073 Capacitive liquid level detector for direct methanol fuel cell systems  
A capacitive liquid level detector for detecting a liquid level of a liquid in a receptacle, the liquid being conductive, the detector comprising: a capacitor with a first plate having a fixed...
7997132 Capacitive sensor assembly for determining relative position  
A capacitive sensor assembly for detecting relative movement or position between objects, such as liquid level in a tank or reservoir, movement of one machine component with respect to another,...
7992437 Liquid level detector  
A liquid level detector for conductive liquids for vertical installation in a tank, the detector having a probe positioned within a sheath and insulated therefrom by a seal so that the tip of the...
7963164 Capacitive sensor assembly for determining level of fluent materials  
A capacitive sensor assembly for measuring a level of fluent material in a container includes an electronics section for receiving and processing signals and an antenna probe operably associated...
7938002 Apparatus for detecting water level mixtures in fluids  
A gauge tape device detects electronically conductive water level mixtures in various fluids through the use of electricity. The gauge tape device includes a gauge circuit and gauge line, having a...
7926344 Ultrasonic fluid level sensing using a dry couplant  
An ultrasonic, non-invasive, bottom-up fluid level sensor for a container, includes: an ultrasonic transducer; and a dry couplant in acoustic communication with the transducer. The dry couplant is...
7639177 Method and device for correcting non-ideal intermediate-frequency signals in distance sensing device according to the FMCW principle  
In fill-level measuring devices that operate according to the FMCW principle, nonlinearity of the sensor signal depending on the time can result in measuring inaccuracies. The fill-level measuring...
7614299 Device and method for monitoring a gas volume in a unit filled with liquid  
A device for monitoring a gas volume in a unit filled with a liquid, where the unit has an inlet line with at least one expansion chamber, and the device includes one or more buoyant bodies...
7600423 Volume or fluid level sensing system and method  
A volume or fluid level sensing system as taught by the present invention comprises a flexible bladder, a solenoidal coil, a means for volume or fluid level measurement, and a user interface....
7533566 Fluid measuring device  
A fluid measuring device for use in a fluid storage tank, comprising a logic operation unit, a capacitive sensor, and a capacitance sensing circuit; wherein the capacitance sensing circuit is...
7530268 Device for determining and/or monitoring at least one physical or chemical process variable of a medium in a container  
An apparatus for determining and/or monitoring at least one physical or chemical, process variable of a medium and includes at least one mechanically oscillatable unit and at least one...
7532155 Radar level gauging system  
A radar level gauging system comprising a microwave unit for transmitting and receiving first microwaves having a first and second distinguishable characteristics, a microwave absorber adapted to...
7481105 Tank system with fuel level gauge  
A fuel level gauge includes a measuring pipe configured as a riser pipe that has a fuel inlet opening at one end region defines a measuring distance. The fuel level gauge also includes a fuel...
7477059 Method to determine the contents level of a first fluid in a container and to determine a presence of a second fluid below the first fluid and level measurement apparatus to execute said method  
A level measurement device to measure the fill level of a fluid in a container, and a method to determine the contents level of a first fluid in a container and a presence of a second fluid below...
7467548 Radar level gauge system and coupling  
A radar level gauge system for measuring a filling level of a content contained in a tank is disclosed. The system comprises a transmitter and a probe, configured to guide transmitted microwave...
7389688 Indirect liquid level measurement  
A tank level detection apparatus for indirect measurement of a liquid level in a tank is disclosed. The apparatus includes a second liquid at least partially stored in a reservoir and a one-way...
7322232 Dipstick-shielding tube and method of use  
An automatic transmission fluid dipstick-shielding tube and method of use for shielding the terminal end of the dipstick whereon fluid level indicia are imprinted to ensure accurate measurement of...
7259384 Fluid level optical detector with float having opaque and transmissive portions  
Systems and methods for fluid level detection are disclosed. In one embodiment, a sensor assembly includes at least one optical fiber adapted to at least one of transmit and receive an optical...
7258004 Volume indicator having angled gradient openings  
A volume indicator for use with a container is provided. The indicator includes a body having a gradient opening defined therethrough at a predetermined angle. The gradient opening is associated...
7249505 Flexible scheduler for a cellular reporting system  
A tank level monitoring system is provided. The system comprises a monitor and a data center. The monitor is operatively connected to the tank to periodically monitor a level of product stored in...
7174780 System for measuring quantity of liquid fuel and method for measuring quantity of liquid fuel  
When air pressure within a first container is less than a predetermined pressure, air is supplied into the first container through a first pipeline by a pressure application unit. Both the volume...
7055384 Fluid level measuring device  
A fluid level measuring device, also referred to as a dipstick, for measuring the fluid level in a fluid reservoir or tank, such as an oil pan or transmission reservoir in an internal combustion...
7013727 Dialysis machine for actuating a method for detecting a liquid level in a container in a circuit  
A container of a dialysis machine has a determined shape and a known volume occupied in part by a volume of a mass of blood; a remaining part is occupied by a volume of a mass of gas. A...
6993966 Advanced volume gauging device  
A new high precision volume gauging system for measuring the volume of a propellant VL enclosed at a first pressure PU within a propellant tank (40) of a volume VT. The improved precision compared...
6978671 Gas tank gauge  
A device for measuring and indicating the volume of the contents of a tank includes a fixed base. A spring deflectable with to the base is also provided. The spring supports at least a portion of...
6952963 Method for detecting a liquid level in a container in a circuit and a dialysis machine for actuating the method  
A container of a dialysis machine has a determined shape and a known volume occupied in part by a volume of a mass of blood; a remaining part is occupied by a volume of a mass of gas. A...
6779398 Ullage meter for a tank of compressed gas at elevated temperature  
A method of gas tank ullage indication is designed to be made up of a coating or film attached to the surface of a tank for holding compressed gas. This is used normally when the tank is warm as...
6748803 Liquid measurement system and shared interface apparatus for use therein  
A liquid measurement system including interface apparatus for sharing the excitation and signal processing of an ultrasonic transonic transducer and temperature measuring device remotely located...
6732580 Level sensor and control  
A sensor for measuring the level of free-flowing particulate material in a storage bin comprises an electronic load cell fixedly positionable at the upper end of the storage bin and having a cable...
6443000 Measuring stick and thermometer  
A measuring device for calculating the depth of a liquid in a container comprises a dipstick, a plurality of indicia on the dipstick and a thermometer on the elongate member which measures the...
6389893 Fuel amount detector  
A fuel storage device includes a fuel chamber storing fuel therein, a volume of the fuel chamber changing in accordance with a change in an amount of fuel in the fuel chamber. The amount of fuel...
6353407 Radar tank level indicating system for measurement of water content in shipboard tank involving identification of fuel-water interface  
A microwave radar signal system generates separate level indicating signals for transmittal through a sounding tube into a contamination tank having a mixture of fuel and gross free water...
6321597 System and method for measuring volume of liquid in a chamber  
Methods and systems for measuring the volume of a liquid in a subject chamber, such as the mixing chamber in a system for mixing and delivering drugs, for example. A volume of a control gas in...
6298721 Continuous liquid level measurement system  
A continuous liquid level measurement system is disclosed which is based upon a differential pressure measurement. The pressure of the liquid level to be measured is calibrated with a second...
6289601 Dipstick guide apparatus  
A dipstick guide assembly for guiding a free end of a dipstick into a dipstick tube. The dipstick guide assembly comprises a clamp secured to an upper portion of the dipstick tube, a guide member...
6205855 Device for monitoring a predetermined level in a container  
A device for monitoring a predetermined level in a container contains a sensor formed by a mechanical vibratory system comprising two vibratory rods, of which at least one vibratory rod is tubular...
6079266 Fluid-level measurement by dynamic excitation of a pressure- and fluid-load-sensitive diaphragm  
Magnetic force from a momentarily excited coil (34) results in oscillatory flexure of a flexible diaphragm (30) loaded on one side by a liquid (10) whose level is to be measured. A strain gauge...
6038919 Measurement of quantity of incompressible substance in a closed container  
In a process and apparatus for delivering a processing substance from a storage vessel to a processing station, the storage vessel enclosing a processing substance storage space and being coupled...

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