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| Number | Title | Issue Date |
| 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 weight attached thereto, which is lowered into a containment vessel h... | 05/10/2011 |
| 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. Means for volume or fluid level measurement are preferentially means for i... | 10/13/2009 |
| 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 driven by the constant current input to perform the detection of the capac... | 05/19/2009 |
| 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 valve, which communicates between the reservoir and the tank. A sensor i... | 06/24/2008 |
| 7360408 | Method for determining a fuel pressure related fault and operating an internal combustion engine based on the fault The invention relates to a method for operating a combustion engine (1) comprising a fuel-driven heat engine (5), which permits a differentiation of faults during the supply of fuel. To this end, the fuel is supplied under pressure to the heat engine (... | 04/22/2008 |
| 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 the fluid level within an automatic transmission or other similar mac... | 01/29/2008 |
| 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 signal, and a moveable float member. The float member is adapted to move ... | 08/21/2007 |
| 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 with a predetermined volume or height of material in the container. The... | 08/21/2007 |
| 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 the tank. The monitor includes a user-defined reporting schedule progr... | 07/31/2007 |
| 7219021 | Multiple wireless sensors for dialysis application A sensor system for dialysis applications includes a plurality of pressure sensors, wherein each pressure sensor can be provided as an LC type sensor, and/or an RLC type sensor. Each sensor among the plurality of pressure sensors can be inductively coupled with a re... | 05/15/2007 |
| 7210341 | Fuel quantity estimate system A device for calculating a quantity of fuel in a fuel tank for a fuel cell vehicle is provided. The device includes a first quantity determining system that provides a first quantity value representing said quantity of fuel in said fuel tank based on a physical cond... | 05/01/2007 |
| 7206720 | Computer-controlled auxiliary fuel tank system with multi-function monitoring system and user calibration capabilities This invention is directed toward a computer-controlled auxiliary fuel tank system that works with both gas and diesel-fueled vehicles, and can operate independently, or in combination with an auxiliary fuel tank, auxiliary fuel pump, sending unit, check valves, inl... | 04/17/2007 |
| 7182915 | Pipette configurations and arrays thereof for measuring cellular electrical properties The present application is directed to pipette configurations, arrays of the same and methods for using such pipettes and arrays to accomplish electrical measurements, including whole cell and on cell measurements. In one aspect of the present invention, a pipette i... | 02/27/2007 |
| 7174784 | Apparatus for measuring a fluid level and methods An apparatus for measuring a fluid level includes a housing with a level indicator adapted to display a measured fluid level. A float is associated with the level indicator and an elongated flexible member is provided with a first end and a second end, wherein the f... | 02/13/2007 |
| 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 of the supplied air and a quantity of change in the air pressure withi... | 02/13/2007 |
| 7168313 | Rotary remote visual liquid quantity indicator A rotary remote visual liquid quantity indicator allows a user to remotely determine the amount of liquid in a container, such as an accumulator on an aircraft. A flexible rotary cable assembly may be coupled between a rotatable drum and a remote indicator having a ... | 01/30/2007 |
| 7146977 | Valve system and method for aerosol delivery An apparatus comprises a variable acoustic source and a microphone, both acoustically coupled to a volume having a fluid region and an air region. The apparatus also can include a processor to determine a volume of the air region based on signals received from the m... | 12/12/2006 |
| 7143653 | Enhanced triaxial tester with volume change device for measurement of flow properties of dry cohesive particulate systems under low confining pressures Disclosed is a triaxial system for testing particulate matter under substantially dry triaxial load conditions comprising: a housing means fillable with confining fluid for providing confining pressure on a sample of dry particulate matter to be tested, the housing ... | 12/05/2006 |
| 7114384 | Acoustic adiabatic liquid quantity sensor An adiabatic liquid volume sensor system is described, which employs a main chamber in a back-to-back configuration with a reference chamber of known volume. The system measures liquid volume in the main chamber by making low frequency acoustic measurements of the a... | 10/03/2006 |
| 7096730 | Measurement systems An assembly that can be used in conjunction with a resin moulding apparatus includes means defining a chamber containing a pressure sensor, and an entry passage leading upwardly into the chamber. The arrangement is such that, when the assembly is mounted in an upper... | 08/29/2006 |
| 7066029 | System and method for improved volume measurement An apparatus comprises a variable acoustic source and a microphone, both acoustically coupled to a volume having a fluid region and an air region. The apparatus also can include a processor to determine a volume of the air region based on signals received from the m... | 06/27/2006 |
| 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 engine. The fluid level measuring device includes a stationary tube ass... | 06/06/2006 |
| 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 disturbance is induced in a combined mass of the liquid and the gas in the conta... | 03/21/2006 |
| 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 with prior art is achieved in that it comprises a high precisi... | 02/07/2006 |
| 6988403 | 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 engine. The fluid level measuring device includes a stationary tube ass... | 01/24/2006 |
| 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 the tank weight. A visible connector is connected to the spring such t... | 12/27/2005 |
| 6974317 | Lightweight concrete composite blocks An apparatus for manufacturing lightweight concrete composite blocks includes a form, a station conveyor, a form-loading station, a form assembly station, a curing oven, and a block removal station. The station conveyor conveys the form or a multitude of forms aroun... | 12/13/2005 |
| 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 disturbance is induced in a combined mass of the liquid and the gas in the conta... | 10/11/2005 |
| 6951131 | Fuel level indication assembly A fuel level indication assembly for a fuel tank includes at least one ultrasonic sensor having a drum to emit and receive a sonic signal. The at least one ultrasonic sensor is adapted to be disposed in either one of a liquid fuel and a fuel vapor/air space within t... | 10/04/2005 |
| 6907371 | Fuel-level-detection system, calibration method, and calibration system Systems and methods for calibrating operation of a fuel-level indicator of a vehicle are disclosed. The systems and methods include means of determining and/or receiving configuration information about the vehicle and integrating appropriate logic for converting raw... | 06/14/2005 |
| 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 is the case right after the tank is pressured with gas. The coating inc... | 08/24/2004 |
| 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 at a liquid container is disclosed. The interface apparatus includes a ... | 06/15/2004 |
| 6453740 | 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 engine. The fluid level measuring device includes a stationa... | 09/24/2002 |
| 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 temperature of the liquid in the container such that the tempe... | 09/03/2002 |
| 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 in the fuel chamber is detected based on the displacement of... | 05/21/2002 |
| 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 collected therein. The separate level indicating signals are thereb... | 03/05/2002 |
| 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 communication with the subject chamber is isolated, such that ... | 11/27/2001 |
| 6314808 | 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 engine. The fluid level measuring device includes a stationa... | 11/13/2001 |
| 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 pressure measurement of the pressure above the liquid in order t... | 10/09/2001 |
| 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 and an adjustment mechanism for fixing the position of the ... | 09/18/2001 |
