子分类：
| 序号 | 专利名 | 申请号 | 申请日 | 公开（公告）号 | 公开（公告）日 | 发明人 |
|---|---|---|---|---|---|---|
| 221 | MAGNETOSTRICTIVE PROBE WITH INVERTED SIGNAL DETECTION | US13767864 | 2013-02-14 | US20140224010A1 | 2014-08-14 | Ambroise Prinstil |
| The present discloses an alternate construction and method for a magnetostrictive probe intended to be used as a tank monitoring device. Height determination, either water or fuel, is referenced to an ultrasonic pickup assembly located inside the shaft at the foot of the probe. With this inverse approach, height measurement takes advantage of the relative geothermal stability of underground storage tanks, or the temperature stability offered by the thermal mass of the fuel, to facilitate a more accurate tank level determination. At that new location, the detection circuit gains the added benefits of being isolated from the effect of magnetic risers, large temperature swings and other undesirable phenomenon that often affect magnetostrictive probe measurements that are referenced to the canister. Aside from its primary use as referred to by this disclosure, this probe could be adapted for any application necessitating precise knowledge of height or distance measurement in relation to the foot of the probe without using a reference magnet. | ||||||
| 222 | Operating method for a vehicle | US13595649 | 2012-08-27 | US08630746B2 | 2014-01-14 | Francesco Bruno; Olaf Franke |
| An operating method for a vehicle includes the steps of measurement of a filling level of a liquid, assignment of a measured filling level to a closest filling level threshold from a multiplicity of known filling level thresholds, wherein each filling level threshold represents a defined filling value, activation of at least one filling level threshold from the multiplicity of filling level thresholds by means of the measuring device, ascertainment of the frequention of an activation of a filling level threshold and/or a frequention of an assignment of a measured filling level to a closest filling level threshold, and determination of the filling level threshold which has a maximum frequention relative to a defined period of time. A realistic filling value is determined from which measuring errors which arise are eliminated. | ||||||
| 223 | Measuring Transducer for Detecting the Formation of Foam on a Liquid | US13521920 | 2010-01-13 | US20130207006A1 | 2013-08-15 | Christoph Weiler |
| A measuring transducer for detecting the formation of foam on a liquid, which is movably inserted into the liquid and the density of which is predetermined, or can be set, such that the measuring transducer floats on the surface of the liquid, wherein a device for determining the luminous flux incident on the top side of the measuring transducer is provided to detect the formation of foam on the liquid which, in many cases, is a process sequence property that is important for process optimization, and wherein an evaluation device of the measuring transducer is configured to output a signal for indicating the formation of the foam when the light flux determined undershoots a predefined threshold value. | ||||||
| 224 | METHOD AND DEVICE FOR DETECTING THE TANK FILLING LEVEL IN A MOTOR VEHICLE | US13713555 | 2012-12-13 | US20130160541A1 | 2013-06-27 | Gonzalo MEDINA-SANCHEZ |
| A method for detecting the filling level in a motor vehicle. A device for ascertaining the tank filling level value of moving vehicles, including at least one tank, at least one filling level sensor, at least one control unit and at least one pump. | ||||||
| 225 | SYSTEM FOR CHECKING OIL LEVEL | US13679915 | 2012-11-16 | US20130125809A1 | 2013-05-23 | Gary Joseph Gracyalny; Kenneth R. Breitenstein; Gregory D. Irwin; David A. Kratz; Elliot J. Matel; Jeffery P. May; David W. Procknow |
| An engine includes a crankcase defining an interior volume for containing lubricant, a fill apparatus including a fill passage and a cap removably coupled to the fill passage, the fill passage defining a main conduit through which the lubricant is provided to the interior volume, a visual interface including an indicator movable in response to an amount of the lubricant in the interior volume to indicate different amounts of the lubricant in the interior volume, a float configured to float on a surface of the lubricant, and a float rod coupling the float to the indicator so that movement of the float in response to changes in the amount of the lubricant in the interior volume causes movement of the indicator. | ||||||
| 226 | Optimized and miniaturized aerosol generator | US13425478 | 2012-03-21 | US08382008B1 | 2013-02-26 | Jonathan J. Ricciardi; Carl L. Ricciardi; John D. Wolf, II |
| 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. | ||||||
| 227 | FUEL LEVEL SENSOR FOR MARINE FUEL VAPOR SEPARATOR EXTERNAL TO UNIT | US13354373 | 2012-01-20 | US20120186562A1 | 2012-07-26 | Kyle Achor |
| A fuel vapor separator assembly including a housing having an open interior and a float disposed therein. At least one magnet is disposed on the float, and a sensor assembly which is responsive to magnetic fields is disposed externally of the housing. The sensor assembly senses the position of the float to determine whether vapor is present in the fuel vapor separator. If the sensor assembly determines that vapor is present in the fuel vapor separator, then it generates a signal, which a controller receives and activates a vapor vent valve to discharge the vapor and/or activates a fuel lift pump to pump additional fuel into the fuel vapor separator. The sensor assembly could be, for example, a Hall effect sensor or a reed-type sensor. | ||||||
| 228 | Apparatus for monitoring height of liquid in storage tank | US11985650 | 2007-11-16 | US20080120047A1 | 2008-05-22 | Louis J. Jannotta |
| An apparatus for monitoring a height of liquid in a liquid storage tank is provided, the apparatus includes a first rotatable element rotatable in response to a change of a liquid level in a liquid storage tank and including a first magnetic component having a first magnetic field, and a second rotatable element rotatable in response to the rotation of the first rotatable element and including a second magnetic component having a second magnetic field. The apparatus further includes a sensor assembly which includes a first sensor component located within range of the first magnetic field and structured to be effective in providing a first signal indicative of a position of the first magnetic component, and a second sensor component located within range of the second magnetic field and structured to be effective in providing a second signal indicative of a position of the second magnetic component. The apparatus further includes a data transmitter/microprocessor assembly in electronic communication with the sensor assembly and structured to be effective in receiving the first and second signals from the first and second sensor components, respectively, and processing said first and second signals into data representing a height of liquid in a liquid storage tank. | ||||||
| 229 | System implementing low-reductant engine operation mode | US11589822 | 2006-10-31 | US20080098726A1 | 2008-05-01 | George E. Donaldson; James J. Driscoll |
| A control system for a power unit having a supply of fuel and a supply of reductant is disclosed. The control system may have a first sensor associated with the supply of fuel to generate a signal indicative of a quantity of fuel remaining. The control system may also have a second sensor associated with the supply of reductant to generate a signal indicative of a quantity of the reductant remaining. The control system may further have a controller in communication with the first and second sensors. The controller may be configured to affect operation of the power unit such that the remaining fuel is consumed before consumption of the remaining reductant. | ||||||
| 230 | Apparatus for remotely detecting fluid reservoir levels in fluid and gas well | US10454873 | 2003-06-04 | US06895816B2 | 2005-05-24 | Foy Streetman |
| An apparatus for detecting fluid levels in an oil and gas well environment and transmitting a signal to a remote site when sensing that the level has reached a predetermined amount. | ||||||
| 231 | Gutter overflow detection device and system | US10411812 | 2003-04-11 | US06786091B1 | 2004-09-07 | Amin S. M. Aleali |
| An overflow detection device is capable of determining whether liquid outside of the device has reached a predetermined level associated with an overflow condition. A container has a closed end and a capped end opposite the closed end. The container has an enclosing wall which extends from the closed end to an open or capped end to define an interior region. A hole or holes are formed in the enclosing wall. The holes are positioned a predetermined distance from the closed end of the container. The holes permit flow of the liquid into the interior region of the container when the liquid level reaches the predetermined level. A flotation piece is situated in the interior region of the container. The flotation piece is capable of floating on liquid which has flowed into the interior region. A visual indicator piece is coupled to or integral with the flotation piece. The visual indicator piece rises with the flotation piece when the level of the liquid contained in the interior region of the container rises. | ||||||
| 232 | Means for measuring the liquid level in a reservoir for a fuel cell | US09906266 | 2001-07-16 | US20030010115A1 | 2003-01-16 | Ronald J. Kelley; Sivakumar Muthuswamy; Steven D. Pratt; Robert W. Pennisi |
| A small fuel cell (10) powers a portable electronic device (12) and contains a fuel reservoir (14) and a device (16) that measures the amount of liquid fuel (18) that is in the reservoir. The fuel cell operates on hydrogen that is obtained from a liquid hydrocarbon fuel, such as alcohol or other hydrocarbons. The liquid fuel is typically converted into hydrogen by a reforming process. The reservoir that is connected to the fuel cell has an indicia (19) that is readable by a human user of the portable electronic device, for measuring the amount of liquid hydrocarbon fuel that is present in the reservoir. Typically, the indicia consist of a sight glass, a capacitive element, a resistive element, a transparent portion of the reservoir, a float, or an acoustic transmitter coupled with an acoustic receiver. | ||||||
| 233 | Position measurement apparatus using wire waveguide in shock resistant suspension | US08851641 | 1997-05-06 | US06194891B1 | 2001-02-27 | John D. Begin |
| A magnetostrictive wire waveguide type position measuring system wherein the wire waveguide is mounted within a small diameter brass tube which, in turn, is mounted by way of resilient suspension components within a rigid outer tube affixed to a position reference frame. The suspension components isolate the waveguide from relatively high frequency shock inputs characteristic of rough environment applications. The position signal is derived from output signal quantities generated by the propagation times of sonic disturbances from a first reference magnet held in a fixed position relative to the outer housing and a second user magnet which moves relative to the outer housing with the element or quantity being monitored. To compensate for longitudinal movement of the waveguide within the floating suspension system, a computer calculates a variable time delay related to the difference between a constant time quantity and the propagation time of the reference magnet impulse and adds this time delay to the user magnet propagation time. The waveguide terminal ends are gradually reconfigured from round to flat, rectangular sections and sandwiched between acoustic dampening pads to reduce or eliminate sonic reflections. A flexible film piezoelectric pickup is disclosed. | ||||||
| 234 | Ratiometric processing and driver circuit | US902558 | 1997-07-29 | US5920255A | 1999-07-06 | Vanni Poletto; Alberto Poma; Marco Morelli |
| The electronic interface circuit can perform ratiometric processing and driving of a signal generated by a fuel-level detector of a vehicle. The circuit uses a current mirror configured so as to send one half of the output current to the input resistance and one half of the output current to earth. The current mirror is controlled by a voltage taken from the input resistance and by a voltage taken from a resistive divider, the latter voltage having been filtered by a low-pass filter, so as to achieve ratiometric processing of the input signal. | ||||||
| 235 | Asymmetrical displacement flowmeter | US543771 | 1990-12-31 | US5343743A | 1994-09-06 | Michael J. L. Chapman |
| An asymmetrical displacement flowmeter comprises a streamlined body or assembly 1 which floats or is submerged in liquid 3 and is subjected to frictional and dynamic pressure forces caused by liquid flow and tilts about axis 9 near the leading end of the body being anchored relative to the flow through tie 7 and anchor 6 or other means acting through axis 9. Degree of tilt from the vertical of body 1 about the axis is affected by the gravity restoring moment acting about the axis and can be adjusted by movement of weight 14 within the body. Pointer 12 attached to pendulum 13 about axis 9 indicates velocity of flow on scale 2 attached to body 1. In open channel depth is measured on scale 11. In closed conduit, body rotates about shaft through wall and may be folded during installation. Velocity and depth may be transmitted electronically. | ||||||
| 236 | Device for measuring and controlling ground water levels and method of manufacturing such device | US974699 | 1992-11-12 | US5269184A | 1993-12-14 | Tamotsu Nishida |
| A device for measuring and/or controlling ground water levels and a method of manufacturing such device. An embodiment of the device comprises a first tubular member having a top and bottom end and a plurality of perforations for allowing liquid, such as water, to enter and exit the device. A float dimensioned to be slidably received within the first tubular member is provided. The float has a top and bottom opening, both being in flow communication with each other. The device also comprises a check valve located inside the first tubular member for selectively passing liquid through the bottom opening of the float. Further, the device includes a second tubular member located inside the first tubular member. The second tubular member is in flow communication with the top opening of the float and extends upwardly through and out of the top opening of the first tubular member. | ||||||
| 237 | Methods for temperature-compensated liquid height and leak detection measurements using quasi-static reference subsystem | US830229 | 1992-01-30 | US5263371A | 1993-11-23 | Joseph W. Maresca, Jr.; James W. Starr; Christopher P. Wilson |
| A method for measuring the temperature-compensated change in the height of a surface of a liquid. The method positions an acoustic signal transducer for emitting and receiving acoustic signals below the surface of the liquid, positions a quasi-static reference device with a fiducial such that the fiducial lies within a predetermined range below the surface of the liquid, and positions one or more fiducials below the surface of the liquid to establish points separated by known distances. The transducer emits acoustic signals, and receives their reflections. The travel times of the reflections from the liquid surface and the fiducials are used to calculate changes in travel times during the measurement period, to estimate the speed of sound in the liquid, to correct for temperature-induced changes in the travel times, and to obtain a temperature-compensated change in travel time to the liquid surface. The temperature-compensated change in the height of the surface of the liquid during the measurement period is calculated using the product of the estimate of the speed of sound in the liquid and the temperature-compensated change in travel time to the liquid surface. The presence of a leak in a storage tank may be detected by converting the temperature-compensated change in the height of the surface of the liquid to temperature-compensated volume change using the known shape of the tank and liquid height, and then comparing the temperature-compensated volume change to a threshold value to determine whether the tank is leaking. | ||||||
| 238 | Leak detector float system and method therefor | US736406 | 1991-07-26 | US5209106A | 1993-05-11 | John A. Carlin |
| An improved leak detection float system for use in underground storage tank containing fuel wherein the float system utilizes an elongated hollow test probe extending downwardly into an underground storage tank and into the fuel stored therein. A microprocessor is contained in an upper compartment of the test probe along with control electronics. A rod is centrally affixed in the lower portion of the test probe and a float is disposed around the rod, but within the test probe so as to float on the surface of the fuel. The float uses tapered edges to minimize offset error due to surface tension. An excitation transducer is placed above the float on the rod which produces vibrational waves down the rod having a predetermined frequency, power, and duration. The vibrational wave breaks the surface tension existing between the float and the fuel so that the float can obtain a position within the fluid based upon the buoyancy of the float in the fluid. The breaking of the surface tension by vibrational wave minimizes any offset between the float and the fluid caused by surface tension. | ||||||
| 239 | Corrosion inhibiting switched polarity fuel level sender module | US685530 | 1991-04-15 | US5172007A | 1992-12-15 | Jeffrey J. Lumetta; Darryl A. Hock |
| Galvanic corrosion of the fuel sender immersed in the corrosive fuel mixture is minimized by supplying the sender with current that periodically switches polarity. The switching rate is selected to prevent or greatly minimize irreversible oxidation buildup. The vehicle body computer responds to current flow through the sender without regard to the alternating polarity drive signal. The switched polarity sender module can thus be employed without necessitating modification of the sender or body computer components. | ||||||
| 240 | Float type liquid level meter | US600723 | 1990-10-22 | US5156197A | 1992-10-20 | Yoshihisa Kiyotoki |
| A float type liquid level meter is provided having an enhanced resistance against vibration transmitted from outside of the float type liquid level meter. The inventor obtained a finding that an external vibration is amplified with a connecting lever which is composing a part of the float type liquid level meter and a fluctuation of an output signal of the float type liquid level meter is proportional to the vibration of the connecting lever. An enhanced resistance against vibration is achieved by providing a connecting lever having a structure which prevents the connecting lever from generating vibration of a low order mode. | ||||||
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