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3626results about "Level indicators by floats" patented technology
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Continuous production process for water-absorbent resin powder and powder surface detector used therefor
A surface-modified water-absorbent resin powder is produced continuously with high productivity in a state where the particle diameter distribution is narrow and where the properties are high by a process comprising a polymerizing step, a drying step, a pulverizing step, a classifying step, and a surface-modifying step, and further, conveying steps of connecting them, wherein the conveying steps include at least two hoppers for storing the water-absorbent resin powder. A powder surface detector used favorably for this process includes a float hung down by a hanging line.
Owner:NIPPON SHOKUBAI CO LTD
Extraction cleaner
A cleaning device having a housing, a hose assembly and a cleaning head. The housing has a first supply tank to contain a first fluid, a recovery tank, a vacuum fan to generate a working air flow through the recovery tank, and a fluid pump having an inlet and an outlet. The pump inlet receives the first fluid from the first supply tank. The hose assembly has a proximal end connected to the housing and a distal end freely moveable relative to the housing, and includes a vacuum hose in communication with the recovery tank and a fluid hose in communication with the pump outlet. The cleaning head is connected to the distal end of the hose assembly, and has an inlet nozzle and a fluid deposition system. The fluid deposition system has a second supply tank to contain a second fluid, a fluid mixer to mix the first fluid with the second fluid, and a first fluid sprayer downstream from the fluid mixer. The second supply tank is selectively removable from the cleaning head and has a dry-break valve that automatically seals the second supply tank upon its removal from the cleaning head.
Owner:ELECTROLUX HOME CARE PRODS
Fluid monitoring apparatus and method
A fluid monitoring apparatus and method is disclosed for use in an underground utility vault. Specifically, a system utilizing multiple sensors to determine the total amount and type of fluid present in a utility vault is disclosed. A first sensor located above the fluid detects and determines the overall depth of fluid present. A second sensor, relying on specific properties of the fluid(s) present, is located in contact with the fluids present. The information regarding specific fluid level and type is conveyed to a central location for monitoring.
Owner:WALKER ENG
Continuous production process for water-absorbent resin powder and powder surface detector used therefor
InactiveUS20030020199A1Quality improvementImprove productivityFilament/thread formingMachines/enginesProduction rateMaterials science
A surface-modified water-absorbent resin powder is produced continuously with high productivity in a state where the particle diameter distribution is narrow and where the properties are high by a process comprising a polymerizing step, a drying step, a pulverizing step, a classifying step, and a surface-modifying step, and further, conveying steps of connecting them, wherein the conveying steps include at least two hoppers for storing the water-absorbent resin powder. A powder surface detector used favorably for this process includes a float hung down by a hanging line.
Owner:NIPPON SHOKUBAI CO LTD
Water softener monitoring device
A device for monitoring the level or amount of a material within a container is provided. The device includes a detection mechanism that can be a direct detection mechanism or an indirect detection mechanism. When the detection mechanism senses an upper level of the substance in the container that is below a predetermined lower limit for the substance, the mechanism operates an alarm mechanism to emit an audible and / or visible alarm to alert an individual to the low level of the substance within the container. The alarm mechanism can be integrally formed with the detection mechanism, or can be spaced from the detection mechanism in order to provide a more accessible point for the viewing or hearing of the alarm emitted by the alarm mechanism.
Owner:WANIE ANDREW J
Capacitive sensor and method and apparatus for controlling a pump using same
ActiveUS8380355B2Easy to assembleReduce assemblyNon-fuel substance addition to fuelEngine testingControl systemEngineering
A variable capacitor for sensing the level of a liquid. The capacitor provides a readable capacitance that varies with respect to the level of the liquid. A pump control system implementing the capacitive sensor to control the level of a liquid by activating and deactivating the pump depending on the level of the liquid. Methods relating to varying capacitance of a capacitive sensor and controlling a pump based on the level of a liquid. A pump controller for controlling the level of a liquid in a reservoir includes a controller and a capacitor. The capacitor is adapted to provide an activation signal to the controller when the liquid in the reservoir reaches a first predetermined level relative thereto. Additionally, the capacitor is adapted to provide a trigger signal to the controller when the liquid in the reservoir reaches a second predetermined level relative thereto. Based on the trigger signal, the controller determines when to deactivate the pump.
Owner:WAYNESCOTT FETZER
Water intake amount management device
InactiveUS20100163567A1Prevent diseaseWay accurateLiquid dispensingDrinking vesselsMan machineEngineering
A water intake amount management device includes a cup body and a cup cover. The cup body is used to store water, and includes at least one communicating tube and at least one float. The communicating tube is in communication with the stored water. The float is disposed in the communicating tube, and floats on a surface of the stored water. The cup cover is combined with the cup body, and includes a man-machine control interface. When driven, the man-machine control interface senses a distance between the cup cover and the float, converts the distance to a plurality of water amount values, calculates a water intake amount according to the plurality of water amount values, and prompts a user according to the water intake amount.
Owner:IND TECH RES INST
Unanchored sensor for fluid characteristics
A device and method for sensing fluid characteristics, including, temperature, pH and chemistry, comprises a switch affixed to or embedded in a container of a size, shape and density such that said container floats stable in said liquid sensors which measure and report other characteristics of the liquid, such as temperature, pH, viscosity, chemistry or biochemistry.
Owner:HARVARD APPARATUS
System and method for measuring water level based on image vision
InactiveCN101718573ALow costEasy to installLevel indicators by floatsVisual technologySystem maintenance
The invention discloses a system and a method for measuring water level based on image vision, which is used for measuring large measuring range water level of places of reservoirs, hydropower station and the like. A CCD camera is arranged right above a floater device for acquiring videos; the videos are converted into digital image frames through a video A / D acquisition module; a floater image area in a dynamic image is influenced by distance changing between the floater and the CCD camera, wherein the distance changing between the floater and the CCD camera is caused by water level changing; the acquired floater image area in the videos is computed through an FPGA processing module, and a relative distance between the floater and the CCD camera is obtained for measuring the water level. In the invention, the water level can be measured indirectly through the floater area in the videos measured by the image vision technology without an expensive water level sensor, and the cost is low; by adopting a modularized design method, the invention has the advantages of simple installation, convenience for on-site measurement and system maintenance, and high adaptability.
Owner:HOHAI UNIV CHANGZHOU
Optimized and miniaturized aerosol generator
InactiveUS8382008B1Improve efficiencyReduce probabilityComputer controlThermometers using electric/magnetic elementsTransducerMiniaturization
An optimized and miniaturized aerosol generator preferably includes a transducer plate, at least one transducer, a level float, a fluid container, at least one aerosol output member and an air input member. At least one transducer counterbore is formed in the transducer plate to retain the at least one transducer. The fluid container includes a float chamber and an aerosol chamber. The at least one aerosol output and the air input member are retained in a top of the aerosol chamber. A sealing gasket is preferably placed between a top of the transducer plate and a bottom of the fluid. The level float is contained in the float chamber. Air is pumped into the aerosol chamber through the air input member. A transducer driver powers the at least one transducer. The at least one transducer vibrates and produces an aerosol, which exits the at least one aerosol output member.
Owner:ALTAPURE
Method and system of a network of diffusers including a liquid level sensor
Systems and methods for managing scent in an environment include disposing a plurality of scent diffusion devices within an environment, wherein the diffusion devices include a communications facility that enables transmitting signals to and receiving signals from a remote computer and disposing at least one sensor within the environment that transmits sensor data to the remote computer. At least one scent parameter for scenting an environment is received at the remote computer. The remote computer controls diffusion of a liquid from a source of a liquid in fluid communication with at least one of the plurality of scent diffusion devices to achieve the scent parameter. Controlling includes setting or adjusting an operation parameter of the scent diffusion device in response to the sensor data.
Owner:SCENTBRIDGE HLDG LLC
Fuel level sensor
InactiveUS20050103103A1Easy to installEasy to adaptMachines/enginesLubrication indication devicesFuel tankResistor
A fuel level sensor for sensing and monitoring the level of remaining fluid in a container such as a fuel tank for a motorized vehicle is disclosed. The fuel level sensor incorporates an improved float and pivot arm member attached to a hub that rotates about a pivot base. The conventional resistor card technology, commonly found in automotive applications for translating the position of the float into an electrical signal, is replaced by a more reliable non-contact magnetic flux sensing circuit. The fuel level sensor incorporates a magnetic sensor and magnetic circuit in a commonly known and practiced rotational position sensor configuration for determining the angular position of a hub relative to its pivot base, where the hub is attached to a conventional float-arm member and the base remains stationary relative to the fuel container. The preferred embodiment includes a magnetic flux sensor positioned between two movable magnets. The magnetic flux sensing element is a Hall effect integrated circuit, magnetoresistor, magnetodiode, magnetotransistor, or similar magnetic flux sensing element with associated electronic circuitry having adjustable or programmable features including ratiometry, gain, offset voltage, temperature coefficient, and output signal range limiting. Critical electronic components are hermetically sealed making the fuel level sensor fully submersible in fuel for long term fuel exposure.
Owner:UUSI
Fuel Inventory Monitoring System
ActiveUS20090126481A1Material analysis using sonic/ultrasonic/infrasonic wavesMachines/enginesSludgeFuel tank
An ultrasonic-based apparatus and method for fuel inventory measurements and for the detection and characterization of materials in a fuel tank, including sludge, water, microorganisms and materials of different viscosities and densities that are present in the tank, presented in an easy-to-interpret picture display that can be remotely located from the tank.
Owner:FUEL TANK OPTICS LLC
Remote fluid level detection system
A remote two-module electronic fluid monitoring system to be used as an agricultural aid in the application of a fluid to a field. A tank module sits atop a field tank and monitors internal fluid level. Fluid level detection is achieved by tracking the position of an embedded permanent magnet associated with a given internal fluid level within an existing float gauge mechanism. An integrated circuit capable of precisely detecting the orientation of magnetic fields senses the angular position of an existing magnet and outputs an angular field reading to an interfaced microcontroller which then translates angular reading to fluid level. The tank module contains a radio frequency transmitter which then sends fluid level information to a display module mounted within the tractor cab. The display module receives the signal from the tank module and reports to the user the present fluid level remaining in tank via a liquid crystal display.
Owner:RAVEN INDUSTRIES INC
Fuel level sensor
InactiveUS7093485B2Easy to installEasy to adaptMachines/enginesLubrication indication devicesFuel tankEngineering
Owner:UUSI
Level sensors
InactiveUS6925871B2Easy to cleanCost reduction and easeInvestigating moving fluids/granular solidsScattering properties measurementsLevel sensorLight emitting device
A level detector comprises an array of light emitting devices mounted in a line parallel to an array of light receiving devices, the arrays being mounted within a housing capable of internally reflecting light from the emitting devices to respective receiving devices unless the respective parts of the level sensor are immersed in liquid. The outer internally-reflecting surface of the housing is preferable a continuous straight-line surface along the direction parallel to the arrays.
Owner:PROD INNOVATION
Method and system of sensor feedback for a scent diffusion device
The disclosure herein concerns a method including receiving at a computer at least one target value of a scent parameter for an environment that is remote from the computer, receiving at the computer a sensed parameter of the environment, and controlling, via the computer, diffusion of a liquid from a source of the liquid in fluid communication with at least one scent diffusion device to achieve the target value of the scent parameter, wherein controlling includes setting or adjusting an operation parameter of the at least one scent diffusion device in response to the sensed parameter.
Owner:SCENTBRIDGE HLDG LLC
Level indicator
A fluid level sensor that is particularly useful in fluid fuel tanks of motor vehicles wherein a resistor network is arranged on a fixed support and it is possible to generate an output signal from the resistor network which corresponds to the position of a float member. The level sensor has particularly low wear and is inexpensive to produce with a contact structure for the resistor network that operates through interaction of a magnetic member is moved by the float and can be deflected such that an electrical connection is dependent on the position of the float.
Owner:CONTINENTAL AUTOMOTIVE GMBH
Apparatus and method for detecting the displacement
InactiveUS20020005715A1Level indicator with buoyant probesSolid-state devicesElectrical polarityMagnetic poles
An apparatus for detecting the displacement of a magnet is to be provided. The errors on the detected value due to the variation of temperature or that with time are hardly caused in the apparatus. The apparatus can detect the displacement in high resolution and precision. The apparatus is simple in its structure, and it can be expected that the apparatus can be manufactured in low cost. The apparatus is not limited in its application by the range of the displacement of the magnet. Further, a method for detecting the displacement of a magnet will be provided. An apparatus for detecting the displacement of a magnet M, the apparatus being characterized in that it further comprises a plurality of hall devices H0-H7 disposed in a predetermined spacing DP along a displacing path of the magnet in parallel thereto, wherein each of said hall devices includes a magnetically sensitive surface HS through which a magnetic flux from said magnet M permeate to generate an output the polarity and the voltage of which are depend on the direction and the density of the magnetic flux, and said magnetically sensitive surface HS of each hall device is disposed in a predetermined distance from the displacing path of the magnet M in parallel with the direction defined by the magnetic poles, and wherein two adjacent hall devices inverted in the polarity of their output voltages are detected to determine the general position of the magnet, and the precise position of the magnet between these two hall devices is determined on the basis of the output voltages.
Owner:TOKYO KEISO
Targeted guided wire level measuring device
InactiveUS20050241391A1Increase reflectionTesting/calibration apparatusMachines/enginesMeasurement deviceWave measure
The invention is an improved guided wave level measurement device. A guided wave measuring device includes a waveguide, a signal generator and a signal receiver, where the signal generator and signal receiver are operationally connected to the waveguide. The improvement included a target which is displaceable with respect to the waveguide and coupled to the waveguide. The target presents a reflective surface and the position of the target is detectable through time of flight measurements of a signal generated by the signal generator.
Owner:K TEK
Multifunctional fluid level and quality sensing device
ActiveUS20150013646A1Improving fluid level sensing performanceQuality improvementMaterial analysis by electric/magnetic meansFuel injection apparatusBoundary valuesEngineering
A multifunctional fluid level and quality sensing device including a fluid level sensor and a capacitive sensor for detecting fluid level, fluid quality, errors in the sensing device, and issues in a fluid delivery system. In detecting fluid level, impedance of the capacitive sensor is used in improving sensing performance of the fluid level sensor, while in detecting fluid quality and errors in the sensing device, an expected impedance range with an upper boundary value and a lower boundary value is calculated, and a fault is generated when the measured impedance value is out of the expected impedance range. The fluid level and quality sensing device can also be used in a fluid delivery system for detecting system issues, and the results can be used for further isolating errors in the system. Operating status of higher level system provides more information for this purpose.
Owner:QI BAOHUA
Liquid level detector
ActiveUS7458261B2Reduce manufacturing costMachines/enginesLubrication indication devicesEngineeringMagnet
Owner:DENSO CORP
Float laser liquid-level measuring device
InactiveCN101074889AEasy to installSimple structureLevel indicators by floatsLevel measurementOptoelectronics
Owner:NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
Liquid level detector
Two pairs of regulating means, that is, the first stopper and the second stopper, which regulate a rotary angle range of the magnet holder when the first stopper and the second stopper come into contact with the stopper of the arm integrally fixed to the magnet holder, are provided in the body which is a fixing member, and the rotary angle range of the magnet holder regulated by one pair of stoppers is made to be different from the rotary angle range of the magnet holder regulated by the other pair of stoppers. Due to the foregoing, when the expensive body is made to be a common part and a plurality of types of inexpensive arms are manufactured, the fuel level gauge can be provided, an increase in the manufacturing cost of which is suppressed, which can cope with rotary angle ranges of the plurality of types of arms.
Owner:DENSO CORP
Vibrators and vibratory gyroscopes
ActiveUS7043986B2Crystal impedance can be loweredHigh detection sensitivityMeasurement of fluid loss/gain rateAcceleration measurement using interia forcesGyroscopeEngineering
A vibrator for generating a signal for measuring a physical quantity using a vibrator is provided, including at least one bending vibration arm vibrating in bending mode along a specified plane and having a first end, an opposed second end, and first and second main faces that are substantially parallel with each other. A base portion is provided at the first provided at the first end of the bending vibration arm, a weight portion is provided at the second end of the bending vibration arm, and grooves are formed on the first and second main faces. The vibrator further includes driving means for exciting a driving vibration in the vibrator, and detecting means provided on one of the bending vibration arms for detecting an output signal based on detection vibrations induced in the vibrator responsive to the physical quantity to be measured.
Owner:SEIKO EPSON CORP
Method, system and program product for monitoring rate of volume change of coolant within a cooling system
InactiveUS7000467B2Detection of fluid at leakage pointDigital data processing detailsExpansion tankSystems design
Method, system and program product are provided for monitoring coolant within a cooling system designed to provide system coolant to one or more electronics subsystems. The monitoring technique includes employing at least one pressure transducer to obtain multiple pressure measurements related to an amount of coolant within an expansion tank of the cooling system, and determining a rate of volume change of coolant within the expansion tank employing the multiple pressure measurements. Successive pressure measurements can be taken at a known time interval to determine the rate of volume change of coolant within the expansion tank. An automatic determination can also be made on the immediacy of action to be taken for service of the cooling system based on the rate of volume change of coolant within the expansion tank.
Owner:IBM CORP
Fuel density measurement device, system, and method
InactiveUS20060169039A1Simple calculationEffective movementFuel testingMachines/enginesShape changeMeasurement device
A fuel tank probe includes a water level float and a fuel level float. A fuel weight sensor is incorporated into the fuel tank probe to report the density of the fuel within the tank. The fuel weight sensor includes a compressible bladder whose shape changes as a function of the density of the fuel. A magnet on the compressible bladder moves in conjunction with the changing shape of the compressible bladder, and allows a fuel column height to be measured. The density of the fuel can be determined from the measured fuel column height.
Owner:VEEDER ROOT
Integrated, Extendable Anesthesia System
InactiveUS20110088694A1RespiratorsOperating means/releasing devices for valvesPhysical separationAnesthesia
The specification describes anesthesia systems with an integrated, extendable clinical center and clinician / anesthesia office that accommodates for physical separation of clinical and clerical functions. The disclosed anesthesia systems allow for a portion of the system to be brought closer to the patient such that clinical controls can be accessed while tending to the patient airway, without compromising office space available to the clinician or crowding the patient area.
Owner:SPACELABS HEALTHCARE INC
Device employing magnetic flux to measure the level of fluid in a tank
A fuel level sensor has a rotor with two magnets mounted for rotation therewith, the magnets spaced from one another and with like poles directed toward one another. A Hall effect sensor on the housing is positioned between the two magnets such that increasing the volume of fluid in the tank moves one magnet toward the sensor and decreasing the volume in the tank moves the other magnet toward the sensor. A metal sleeve around the magnets protects the parts from interference from magnetic material in the fuel. A static discharge path is provided from a metal rod connecting a float, a plate contracting the rod, and a pivot pin retaining the rotor to the housing, and a ground connector in contact with the pivot pin.
Owner:DE AMERTEK
Fluid Monitoring Apparatus and Method
InactiveUS20090126483A1Cable installations in cable chambersMachines/enginesMultiple sensorEngineering
A fluid monitoring apparatus and method is disclosed for use in an underground utility vault. Specifically, a system utilizing multiple sensors to determine the total amount and type of fluid present in a utility vault is disclosed. A first sensor located above the fluid detects and determines the overall depth of fluid present. A second sensor, relying on specific properties of the fluid(s) present, is located in contact with the fluids present. The information regarding specific fluid level and type is conveyed to a central location for monitoring.
Owner:WALKER ENG
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