Class / Patent application number | Description | Number of patent applications / Date published |
073313000 | With electrically controlled indicator | 48 |
20090038395 | LIGHT SENSING CONTACTLESS FUEL LEVEL SENSOR - A contactless, sealed fuel level sensor for determining a fuel level in a fuel tank and producing a level indicative signal includes a frame, a cover, a float arm, a float and a light-responsive sensor. The frame is configured to have a cavity formed therein. The cover is connected to the frame to enclose the cavity. The float arm is coupled to one of the frame or cover. The float is connected to the float arm and configured such that the float moves the float arm as a level of fuel increases and decreases in the fuel tank. The light-responsive sensor is configured to generate a fuel level signal indicative of a fuel level in the fuel tank based on the movement of the float arm. The fuel level sensor may also include a light source such as a light emitting diode (LED). The light-responsive sensor may be a single photoelectric sensor located in the sealed cavity, or an array of photoelectric sensors located in the sealed cavity. The fuel level sensor may also include a rotatable hub connected to the float arm for movement as the arm moves and where rotation of the hub varies an amount of light impinging on the photoelectric sensor. The light responsive sensor may also include a CMOS sensor located in the sealed cavity. The light responsive sensor may also include a digital, optical-based displacement encoder mounted on the float arm used in combination with a rotary scale applied to the cover opposite the encoder. | 02-12-2009 |
20090126485 | Liquid surface detection device - The present invention provides a liquid surface detection device | 05-21-2009 |
20090158843 | FLUID LEVEL SENDER ASSEMBLY AND METHOD OF MAKING A FLUID LEVEL SENDER ASSEMBLY - A fluid level sender mount assembly includes a first mounting member having a chamber and a second mounting member having an elongate docking portion. The docking portion may be sized to slidably fit and rotate within the chamber to permit positioning the second mounting member at a plurality of different linear and angular positions with respect to the first mounting member. The second mounting member may be affixed to the first mounting member to retain the second mounting member in a desired position W/R/T the first mounting member. One of the first and second mounting members may be adapted to be attached to a fluid container. The other of the first and the second mounting members may be adapted to be attached to a fluid level sender. | 06-25-2009 |
20100000317 | DEVICE FOR INDICATING A LEVEL OF FLUID COMPRISING A MOVABLE ARRANGED LIGHTING MEMBER WHICH IS PRESENT INSIDE A CONTAINER OF THE DEVICE - An electric hot water kettle comprises a container ( | 01-07-2010 |
20100024545 | INDUCTIVE LIQUID-LEVEL SENSOR - An inductive liquid-level sensor employs a central shaft supporting multiple independent electrical loops that may be interrogated to detect the proximity of the conductive element in the float rising and falling with changes in liquid height outside of the shaft. | 02-04-2010 |
20100043543 | Fuel Sender with reed switch and latching magnets - The present invention relates to a fuel sensor adapted for sensing the level of fuel in a vehicle fuel tank and in particular to a fuel sensor adapted to sensing the level of fuel which would be accurate, compact and dragged. The fuel sensor of the invention is further adapted to be readily fitted in the vehicle fuel tank for measuring the fuel level efficiently and reliably. Importantly the fuel sensor is further adapted for operative connection to indicative instrument to facilitate ready and accurate reading of the fuel level in the tank. | 02-25-2010 |
20100132456 | Fuel Sender Assembly for Vehicle - A fuel sender assembly for a vehicle may include a main housing which is mounted at a reservoir cap and is provided with a boss therein, a variable resistance unit which is mounted inside the main housing and is provided with a ceramic resistance plate having a ground resistance, a contact arm unit disposed at an upper portion of the ceramic resistance plate and rotatably mounted at the boss inside the main housing, a main cover which has a penetrating hole in a corresponding position to the boss and is mounted at a front surface of the main housing, a float arm having one end which is bent and is rotatably mounted at a front surface of the main cover and the other end, and a float mounted at the other end of the float arm so as to rotate the float arm according to the residual fuel. | 06-03-2010 |
20100139394 | Level Indicator - A level indicator having a support, a thick-film resistor network arranged on the support, a bow that carries a contact structure that produces, depending on the position of the bow, an electrical signal in the thick-film resistor network, a lever arm that is retained in the bow and has a float on its other end. The float having has a seat for the lever arm. The lever arm has a pivoting range in a first plane. The float has a second plane that is perpendicular and that extends perpendicular to the first plane and through the center of mass of the float. The float is mounted on the lever arm to be positionally immobile. The seat for the lever arm is arranged in a region of the float which is arranged on the side of the second plane that faces away from the seat of the bow and that is delimited by the second plane and the outer periphery of the float. | 06-10-2010 |
20100212420 | INDUCTIVE FLUID LEVEL SENSOR - A sensor for measuring a level of a fluid includes a member and a bobbin defining a cavity therethrough and configured for receiving the member. The sensor also includes at least one inductive coil wound to the bobbin, wherein the at least one inductive coil defines a plurality of symmetrical layers that each extend along an axial length of the bobbin. The sensor includes a float operably connected to the member and buoyant in a fluid having a level in a container. The member axially translates within the cavity in response to a change in position of the float according to the level of the fluid so that an inductance of the at least one inductive coil varies in relation to a position of the member within the cavity and thereby in relation to the level of the fluid. | 08-26-2010 |
20100218602 | Sender Card Contamination Reduction due to Current Application to Sender Card - Disclosed herein is a system for use in a tank containing a contaminative fluid. The system includes an electrically conductive resistive material in fluid communication with the contents of the tank, a controller configured to periodically generate a control signal, and a variable power supply coupled to the electrically conductive material to provide a current within a normal operating range and to supply current at an elevated level in response to a control signal, wherein the elevated level is selected to heat the electrically conductive material to a temperature sufficient to remove contamination building thereon. | 09-02-2010 |
20100269586 | SENSOR FOR INDUCTIVE MEASURE OF FLUID LEVEL - A sensor for measuring fluid level is provided that includes a float, which may be steel or another material that affects magnetic flux. The sensor further includes a housing defining a cavity configured to receive the float. The housing may be, but need not be, tubular, and the cavity may be cylindrical. At least one magnetic coil is wound to the housing along the cavity. The coil may be wound around the housing. The float is positionable in the fluid to move within the cavity in relation to fluid level. | 10-28-2010 |
20100269587 | LOW LIQUID LEVEL DETECTING DEVICE AND METHOD - The invention discloses a low liquid level detecting device comprising a float sensor and a casing. The casing has first to third chambers formed between an upper wall and a bottom wall. The top portion of the first chamber is formed with a top opening. The bottom portion of the first chamber communicates with the bottom portion of the second chamber. The top portion of the second chamber communicates with the top portion of the third chamber. The bottom portion of the third chamber is formed with a bottom opening. A float sensor is mounted inside the third chamber. A drain hole is formed through the bottom part of a chamber wall surrounding the third chamber. A method for detecting a low liquid level using the above low liquid level detecting device is also disclosed. | 10-28-2010 |
20100307237 | FLUID LEVEL SENSOR - Invention provides for a fluid level sensor with a guide body ( | 12-09-2010 |
20110000297 | FLUID TANK AND FLUID LEVEL SENDER WITH EXTERNAL SIGNALING FEATURE - A fluid level sender may include a sensing feature disposed within an internal volume of a tank, responsive to the level of liquid within the tank and including a drive member, a signaling feature disposed outside of the internal volume of the tank and including a driven member and a dividing wall. The dividing wall may be disposed between and separating the sensing feature from the signaling feature. The drive member provides a force and the driven member is responsive to the force provided from the drive member to enable the signaling feature to provide an indication of the amount of liquid within the tank. | 01-06-2011 |
20110005312 | Process Tanks in Combination with a Float Magnetostrictive Level Detector - The invention is a process tank containing a direct level magnetostrictive measurement system disposed directly in the tank, where the level system preferably communicates to a remote location. One embodiment of the invention embodies an internal well guide chamber, which exactly replicates the actual vessel's internal conditions (pressure and temperature), and also prevents the float from being affected by turbulence from a two phase condition, such as might occur if boiling or flashing is present inside the vessel. The process tank should have a fluid temperature different by more than 50° C. form the ambient environment, or alternatively, be a flashing tank. | 01-13-2011 |
20110138907 | MULTI-LEVEL LIQUID LEVEL MAGNETIC SENSOR - A liquid level sensor employs a set of axially displaced magnetic sensing switches and a magnet on a float that may rise and fall on liquid level to activate and deactivate the switches. The switches and magnet are configured so that movement of the magnetic float activates a new switch before deactivation of an adjacent previously activated switch. An electronic circuit provides a signal based on the uppermost activated switch to provide a signal that is monotonic with liquid level. The design may be readily implemented using reed switches and a resistive ladder. | 06-16-2011 |
20110252883 | FLUID STORAGE AND DISPENSING SYSTEM INCLUDING DYNAMIC FLUID MONITORING OF FLUID STORAGE AND DISPENSING VESSEL - A monitoring system for monitoring fluid in a fluid supply vessel during operation including dispensing of fluid from the fluid supply vessel. The monitoring system includes (i) one or more sensors for monitoring a characteristic of the fluid supply vessel or the fluid dispensed therefrom, (ii) a data acquisition module operatively coupled to the one or more sensors to receive monitoring data therefrom and responsively generate an output correlative to the characteristic monitored by the one or more sensors, and (iii) a processor and display operatively coupled with the data acquisition module and arranged to process the output from the data acquisition module and responsively output a graphical representation of fluid in the fluid supply vessel, billing documents, usage reports, and/or resupply requests. | 10-20-2011 |
20120285240 | LIQUID LEVEL DETECTION APPARATUS - A liquid level detection apparatus includes a rotation member axially supported by a fixed member. The rotation member includes the following. A contact portion press contacts an end surface making connection between both side surfaces of a magnet member. A pair of elastic deformation portions are protruded from the contact portion; each elastic deformation portion engages with a side surface of the magnet member in an elastically deformed state resulting from press to the magnet. A pair of pawl portions are protruded respectively from the elastic deformation portions while enabling the magnet member to be sandwiched between the contact portion and the pawl portions. A pair of plastic deformation portions are protruded from the elastic deformation portions, respectively; each of the plastic deformation portions engages with the side surface of the magnet member in a plastically deformed state resulting from the press to the magnet. | 11-15-2012 |
20120324996 | MAGNETIC LEVEL INDICATOR - A magnetic level indicating system includes a chamber for fluidic coupling to a process vessel. Material level in the vessel equalizes with material level in the chamber. A magnetic float in the chamber rises and falls with the material level in the chamber. A magnet actuated visual indicator is mounted to the chamber for indicating level of the magnet in the chamber and thus material level in the vessel. The indicator comprises an elongate transparent tubular housing defining an interior space open at opposite ends. An indicator assembly is mounted in the housing interior space and responsive to movement of the float and visible through the housing to indicate material level in the chamber. An end cap is received in each of the opposite ends of the tubular housing and a seal member is disposed between each end cap and the tubular housing. | 12-27-2012 |
20130025366 | METHOD FOR PRODUCING CONDUCTIVE SEGMENT, AND CONDUCTIVE SEGMENT - A method for producing a conductive segment, includes: a step of printing a metal conductive paste on a substrate, and drying the paste; a step of printing other metal conductive paste on the metal conductive paste after drying, and drying the paste; and a step of burning the metal conductive paste after drying and the other metal conductive paste after drying, wherein the conductive metal paste is an Ag—Pd conductive paste comprising silver (Ag) and palladium (Pd), and the other metal conductive paste is an Au conductive paste comprising gold (Au) as a main component; or the metal conductive paste is an Au conductive paste comprising gold (Au) as a main component, and the other metal conductive paste is an Ag—Pd conductive paste comprising silver (Ag) and palladium (Pd). | 01-31-2013 |
20130055807 | HERMETIC FUEL LEVEL SENDER - An in-tank fuel level sender ( | 03-07-2013 |
20130139586 | Battery-less Active Float for Inductive Sensor for Monitoring Fluid Level and Displacement - A fluid level sensor system includes a primary coil, at least one secondary coil adjacent the primary coil, a control system operative for applying a time varying signal to the primary coil and for detecting a response of the secondary coil to the time varying signal in the primary coil, and at least one float resonator adapted to move adjacent the primary and secondary coils. Each float resonator includes an electrical storage device and a circuit which is switchable between a first state that enhances the response of a section of the secondary coil adjacent the float resonator to the time varying signal in the primary coil and the charging of the electrical storage device, and a second state where the effect of the circuit on the response of the secondary coil to the time varying signal in the primary coil is diminished relative to the first state. | 06-06-2013 |
20130180328 | Liquid Level Transducer with Isolated Sensors - A transducer for determining the level of liquid within a container includes a mounting head adapted for connection to the container and a sensor assembly adapted to extend into the container from the mounting head. The sensor assembly includes a housing having an upper portion connected to the mounting head and a lower portion that extends from the upper portion. The lower portion has a hollow interior that is isolated from liquid within the container. A plurality of sensor elements are located within the hollow interior. A float rod is pivotally connected to the housing and a float is connected to a distal end of the float rod to thereby cause pivoting movement of the float rod in response to a change in liquid level within the container. An actuator is located outside of the housing and is operatively associated with the float rod for pivotal movement therewith. The actuator is operative to change an electrical state of at least one of the sensor elements to thereby indicate a level condition of the liquid within the container. | 07-18-2013 |
20130239677 | SLIDING LIQUID LEVEL SENSOR - Embodiments of the invention are directed towards a sliding liquid level sensor which is mounted in a fuel tank of a vehicle for detecting a remaining amount of a liquid fuel in the tank. The liquid level sensor has a float, a plurality of electrodes, and a sliding contact point configured to slide on the electrodes in accordance with a displacement of the float. The electrodes preferably contain 100 parts by weight of a silver-palladium alloy and preferably 3-20 parts by weight of glass. The silver-palladium alloy preferably contains 20-60% by weight of silver and preferably 80-40% by weight of palladium. The sliding contact point is made from a palladium-nickel alloy that preferably contains 70-90% by weight of palladium and preferably 30-10% by weight of nickel. | 09-19-2013 |
20130269432 | Electromechanical Fill-Level Measuring Device - An electromechanical, fill-level, measuring device, comprising: a float, an outer drum with an outer ring of magnets, an inner drum with an inner ring of magnets, electromagnetic measuring elements, a measuring shaft with, and a servomotor with an drive shaft. The drive shaft is coupled with the measuring shaft via a transmission, wherein the servomotor rotates the measuring shaft via the transmission as a function of a control signal ascertained from the difference value of the measuring elements, so that, by relative movement between the outer and inner drums produced by a change of the liquid level to be measured, the difference value is returned to zero and from the rotation of the measuring shaft the current fill level measured value is ascertained. Sensor electronics is arranged on the measuring shaft within the inner drum, and radial, rotary transformer is embodied on the measuring shaft for transmitting at least the control signals from the sensor electronics to the main electronics and supplying for at least the sensor electronics with energy. | 10-17-2013 |
20140020464 | Liquid Level Transducer with Isolated Sensor - A transducer for determining the level of liquid within a container includes a mounting head adapted for connection to the container and a sensor assembly adapted to extend into the container from the mounting head. The sensor assembly includes a housing having an upper portion connected to the mounting head and a lower portion that extends from the upper portion. The lower portion has a hollow interior that is isolated from liquid within the container. At least one sensor element is located within the hollow interior. A float rod is pivotally connected to the housing and rotates in response to a change in liquid level within the container. An actuator located outside of the housing is connected to the float rod and is operative to change an electrical state of the at least one sensor element to thereby indicate a level condition of the liquid within the container. | 01-23-2014 |
20140076046 | FUEL AMOUNT DETECTION DEVICE FOR VEHICLE - Provided is a fuel amount detection device for a vehicle positioned in a fuel tank of the vehicle to detect a remaining fuel amount. In the fuel amount detection device for a vehicle, a resistor pattern and a conductive pattern formed on a resistor substrate and spaced apart from each other are electrically connected to each other by a conductive material coated on a conductive film pressed by a contactor to prevent abrasion of the resistor pattern formed on the resistor substrate, thereby making it possible to improve durability. In addition, since the resistor pattern is sealed by the conductive film, it does not contact fuel, such that corrosion of the resistor pattern is prevented, thereby making it possible to accurately detect a fuel amount. | 03-20-2014 |
20140090466 | FUEL SENSING SYSTEM AND METHOD OF OPERATION - A fuel sensing system and method of measuring and monitoring an amount of fuel in a storage tank for power operated equipment. The method comprises the steps of positioning a fuel sensor assembly within a storage tank that supports fuel provided to the power operated equipment during operation and generating a pulse width modulated output signal with a pulse width modulation generating circuit. The pulse width modulated output signal provides a signal width proportional to the fuel level in the storage tank. The method also comprises processing the pulse with modulated output signal with non-transient computer readable medium by one or more processors internal to a microcontroller to form an output value indicating the amount of fuel in the storage tank and displaying the output value on an indicator display mounted on the power equipment. | 04-03-2014 |
20140116131 | CONTACTLESS LIQUID LEVEL SENSOR - In at least some implementations, a liquid level sensor includes a liquid level responsive member, first and second circuit elements and a magnetic field member. One circuit element generates a magnetic field and the other is responsive to the magnetic field. The magnetic field member is responsive to movement of the liquid level responsive member and alters, in at least some positions of the magnetic field member, at least one characteristic of the magnetic field experienced by the second circuit element as a function of the position of the magnetic field member. The magnetic field experienced by the second circuit element can be correlated to a position of the magnetic field member which can be correlated to a position of the liquid level responsive member to provide an indication of the liquid level in the tank. | 05-01-2014 |
20140260602 | WATER-LEVEL DETECTING SYSTEM AND WATER-LEVEL DETECTING METHOD - A water-level detecting system includes a water receiving module located in an electronic device, a first sliding rheostat, a varicap, a frequency-to-voltage converter, a comparing module, and an indicator module. The water receiving module includes a water tank, a floating block received in the water tank, and a connecting portion. The floating block is moved by the rising water level in the water tank to slide the first sliding rheostat. A voltage of the varicap is changeable when the first sliding rheostat slides, and a voltage of the frequency-to-voltage converter is changeable according to the voltage of the varicap. The comparing module compares the voltage of the frequency-to-voltage converter with a predetermined voltage, and the indicator module lights up when the voltage of the frequency-to-voltage converter is greater than the predetermined voltage. The disclosure further offers a water-level detecting method. | 09-18-2014 |
20140331765 | Filling Level Indicator - A filling level indicator includes a retainer, a bow rotatably supported on the retainer and having a lever arm fastened thereto, a float fastened to the lever arm, and a filling level sensor arranged in the retainer. The filling level sensor has a substrate, a resistance network arranged thereon, a contact spring structure, and a cover, connected to the substrate, that covers the resistance network and the contact spring structure. A magnet is connected to the bow or the lever arm and acts on the contact spring structure such that an electrical signal corresponding to the filling level is generated according to the pivoting range. The mount has a wall thickness that can be penetrated by the magnetic field of the magnet, and so metal particles are held on the outside of the mount by the magnetic field of the magnet. | 11-13-2014 |
20140373623 | Filling level sensor in a fuel tank of a motor vehicle, production method for such a filling level sensor, and method for operating such a filling level sensor - A filling level sensor in a fuel tank of a motor vehicle includes a substrate having a resistance network arranged thereon, one or more electrical contacts, which are in contact with the resistance network in order to produce an electrical signal depending on the pivoting of a lever arm, and a float, which is fastened to the lever arm in such a way that the lever arm can be moved by the float in accordance with the filling level. The filling level sensor is connected to electronics, and the electronics are designed in such a way that the electronics provide a respective corresponding electrical target signal for each of the electrical signals generated by the filling level sensor. | 12-25-2014 |
20150040661 | Extensometer Probe and System for Monitoring Displacement, Water Level and Evaporation - An extensometer probe comprising a linear variable differential transformer (LVDT) and a novel coaxial clamp and extension tube; useful for reducing thermal error, precisely measuring displacement, and deployment in tight spaces like wells or boreholes. A novel float for measuring free surface elevation of liquid; comprising an autonomous vibrator for reducing effects of bubbles, surface tension, and friction. An embodiment of the probe for measuring convergence or dilation in tunnels, bridges, buildings, etc. Embodiments of the probe and float for measuring water level: a total probe for measuring from a single point directly beneath the float, and an evaporation probe for measuring within a hydraulically isolated evaporation pan. A novel mobile monitoring platform deploys the probes within an impoundment, lagoon, pond or other environmental containment structure. A system comprising the total and evaporation probes and electronics for directly measuring seepage, or specific discharge, from animal waste or manure lagoons. | 02-12-2015 |
20150059470 | MEASURING DEVICE - A measuring device may be provided with a cover configured to close an opening provided on a fuel tank; a plug configured to close a through hole provided on the cover; and a sensor configured to measure a property of fuel inside the fuel tank. The plug may be provided with an electrical connector and a fuel passage. The electrical connector may be configured to electrically connect inside and outside of the fuel tank. The electrical connector may pierce through the plug from an upper surface to a lower surface of the plug The fuel passage may include an inlet configured to open to the inside of the fuel tank to receive the fuel from the inside of the fuel tank. The sensor may be disposed in the fuel passage of the plug. | 03-05-2015 |
20150068301 | DUAL MEASUREMENT LIQUID LEVEL TRANSDUCER - A liquid level transducer for a tank, such as a railroad tank car or the like, includes a mounting head connected to the tank and a sensor assembly extending into the tank from the mounting head. The sensor assembly includes a sensor tube located in the tank and a gauging rod assembly positioned in the sensor tube. The gauging rod assembly can be pulled out of the tank until it magnetically couples with a magnetic float that surrounds the sensor tube. The float moves in response to a change in liquid level and the magnetic coupling provides the user with a visual indication of the liquid level. A sensor board extends along a length of the gauging rod assembly and is responsive to movement of the float for electronically determining the liquid level without the need to magnetically couple the gauging rod assembly to the float. | 03-12-2015 |
20150096367 | Systems and Methods for Measuring Levels of Liquids of Different Densities in Containers - Systems and methods for measuring or determining the level or amount of multiple immiscible liquids of different densities in containers utilize multiple floats, with each float having a density less than the density of the liquid to be measured but greater than the density of the next less dense liquid (or fluid) in the container. In this fashion, the position of each float can be determined and used to determine the levels of the various liquids using a single three-terminal potentiometer. A method includes measuring first and second electrical signals corresponding to first and second locations of actuation of the potentiometer. A system includes a three terminal potentiometer capable of magnetic actuation at two locations, a first float configured to magnetically actuate the potentiometer at a first location, and a second float configured to magnetically actuate the potentiometer at a second location that differs from the first location. | 04-09-2015 |
20150107355 | LIQUID SURFACE DETECTION DEVICE - Provided is a liquid surface detection device providing for compactness and enabling a reduction in displacement of a rotating shaft of a magnet. In the liquid surface detection device, which is provided with a holder rotating in response to displacement of a float, said displacement accompanying a change in a liquid surface, which is provided with a magnet affixed to the holder and rotating along with the holder, and which is provided with a magnetic detection element detecting a magnetic force change accompanying the rotating motion of the magnet, said liquid surface detection device is provided with: a body section that provides on the holder, first and second rotating sections sandwiching the magnet therebetween in the rotary axis direction of the magnet, said body section being provided with a first rotary support section that places the magnetic detection element opposite the magnet in the rotary axis direction of the magnet, and that rotatably supports the first rotation section of the holder; and a cover that is affixed to the body section, and is provided with a second rotary support section that rotatably supports the second rotating section of the holder. | 04-23-2015 |
20150338264 | DOUBLE-SIDE THICK FILM NETWORK ON CERAMIC CARD - A ceramic card having a thick film network, with conductive vias formed as part of the card. Each of the vias is in electrical communication with both sides of the thick film network, allowing the pads and the pad senders to be formed on both sides of the card. This configuration maintains the contact when one of the connectors is subjected to bending force or is otherwise displaced, maintaining contact with at least one of the pads, and allowing the system to still function. The double sided thick film network allows for each connector to touch both sides of one of the pads, and still maintain electrical communication with the level sender, thus eliminating the failure mode of intermittent contact with the thick film network resulting from movement of the connector. | 11-26-2015 |
20150355014 | DIGITAL LIQUID-LEVEL SENSOR - A digital liquid-level sensor comprises a non-magnetic conduit, a floater provided outside the non-magnetic conduit and capable of axially moving along the non-magnetic conduit, and a permanent magnet fixed on the floater. The non-magnetic conduit further comprises a switch unit and an encoding unit. The switch unit comprises at least one tunneling magnetoresistance switch which is turned on or turned off under the effect of the magnetic field produced by the permanent magnet; and the encoding unit comprises at least one encoder, of which an input end receives an on/off signal from the tunneling magnetoresistance switch and outputs a digital signal indicating the position of the floater. The digital liquid-level sensor is of a small size; has low cost, low power consumption, high reliability, high sensitivity, high solution, long service life, and a good anti-interference capability; and can directly output the digital signal. | 12-10-2015 |
20150369648 | FLUID LEVEL SENSOR - A fluid level detector having a sensor and a sensor object carried by a rotatable carrier. The sensor may or may not be sealed within a housing, and may provide an output signal based on a sensed characteristic of the sensor object, where the sensed characteristic may be different depending on the position of the sensor object relative to the sensor. | 12-24-2015 |
20150377686 | FUEL TANK HAVING AN ACTIVATED CARBON FILTER AND METHOD TO DISPLAY THE FUEL LEVEL OF THE FUEL TANK WITH SIGNAL SUPRESSION AT A CRITICAL NEGATIVE PRESSURE DURING REGENERATION OF THE ACTIVATED CARBON FILTER - A fuel tank for a combustion engine includes measuring and signal generating devices constructed to measure a filling level or filling volume within the fuel tank, and to transmit a first signal corresponding to the filling level or filling volume to a fuel indicator; a signal modifying device constructed to modify the first signal when the fuel tank undergoes a deformation; and an activator activating the signal modifying device when a valve between an activated carbon filter communicating with the fuel tank and an intake tract of the combustion engine assumes an open position. | 12-31-2015 |
20150377687 | LEVEL MEASUREMENT SYSTEM - A level measurement system configured to measure minute changes in fluid level. The system integrates a linear variable differential transformer (LVDT) to provide highly accurate level measurement. Low friction materials and a timed vibrator are used to minimize fluid static friction effects on level measurement. A second LVDT can be utilized to compare the level of a fluid containment structure with level changes caused by environmental factors such as evaporation, tidal effects, wind, or the like. The system also includes a computing device to record and compare level changes over time. A housing connects the elements of the system. | 12-31-2015 |
20150377688 | SENSOR AND METHOD OF MANUFACTURING SENSOR - A sensor includes: a Hall IC that outputs an electrical signal depending on a liquid level which is a detection object; a condenser used together with the Hall IC; a plurality of lead frames that includes a terminal portion to which a lead wire is connected, and a base portion to which a lead of the Hall IC is connected; and an inner member that holds the plurality of lead frames. In the inner member holding the lead frame, a space portion recessed in a concave shape is formed, and the Hall IC is accommodated in the space portion. Further, a condenser is mounted between a pair of the leads present in the space portion. | 12-31-2015 |
20160054169 | FLUID TANK - A fluid tank ( | 02-25-2016 |
20160103009 | FUEL LEVEL SENSOR - A fuel tank system for use in a vehicle comprises a fuel tank having a volume comprising a first or primary range and a second or preliminary range. A fuel level sensor assembly disposed in the fuel tank comprises a receiving unit, a first fuel level sensor positioned to move with the level of fuel in the first or primary range of the fuel and a second fuel level sensor positioned to move with the level of fuel in the second or preliminary range of the fuel. The receiving unit delivers a signal to a control module that indicates that the fuel level is within the preliminary range or the primary range. | 04-14-2016 |
20160109279 | INDUCTIVE SENSOR - An inductive sensor device for sensing the level of a liquid within a reservoir. The inductive sensor device includes a rotor pivotally connected to an overmold housing. Further, an inductive coupler is mounted to the rotor. Moreover, a float is connected to the rotor to pivot the inductive coupler by the at least one receiving coil to determine the level of liquid within the reservoir. | 04-21-2016 |
20160123790 | SENSOR FOR MEASURING WATER LEVELS OF GROUNDWATER AND SURFACE WATER USING MAGNETOSTRICTION DISPLACEMENT AND MULTI MEASUREMENT SYSTEM FOR GROUNDWATER AND SURFACE WATER BY USING THE SAME - Provided is a sensor for measuring water levels of groundwater and surface water using magnetostriction displacement and multi measurement system for groundwater and surface water by using the same. The sensor includes an outer case having a hollow space therein and extending in a longitudinal direction, a magnetostriction line spaced apart from an inner wall in the hollow space of the outer case to extend in the longitudinal direction, a floating permanent magnet guided along the magnetostriction line to be movable in the longitudinal direction, the floating permanent magnet being changed in position to correspond to a water level; and a transceiver applying a current pulse into the magnetostriction line to receive an elastic wave that is generated while first magnetic fields formed in a circumferential direction of the magnetostriction line by the current pulse crosses a second magnetic fields formed in an axial direction of the magnetostriction line by the permanent magnet. | 05-05-2016 |
20160178427 | MEASURING APPARATUS FOR THE FILLING LEVEL OF A CONTAINER | 06-23-2016 |