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VOLUME OR RATE OF FLOW

Subclass of:

073 - Measuring and testing

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Class / Patent application numberDescriptionNumber of patent applications / Date published
073861180 By measuring vibrations or acoustic energy 225
073204110 Thermal type 160
073861351 Mass flow by imparting angular or transverse momentum to the fluid 158
073861080 By measuring electrical or magnetic properties 145
073861420 Using differential pressure 115
073861040 Of selected fluid mixture component 40
073202000 Proportional 27
073198000 Combined 26
073272000 Element 23
073232000 Expansible chamber 18
073861790 Using turbine 18
073861050 By measuring transit time of tracer or tag 14
073861010 With indirect temperature or density compensation 12
073861770 Using rotating member with particular electrical output or circuit 11
073195000 System 9
073861710 By measuring thrust or drag forces 8
073861410 By counting drops, bubbles, or particles 5
20130081478ENVIRONMENT PROVIDING DEVICE, ENVIRONMENT PROVIDING METHOD, AND PARTICLE DETECTING DEVICE EVALUATING METHOD - An environment providing device having a test chamber; a spraying device for receiving the supply of a gas flow to spray, into the test chamber, a fluid that contains particles; a flow meter for measuring a measured value for the flow rate of the gas flow that is supplied to the spraying device; a flow rate controlling device for controlling to a prescribed value, based on the measured value, the flow rate of the gas flow that is supplied to the spraying device; a timer for measuring a time interval over which the fluid that includes the particles has been sprayed into the test chamber; and a spraying-device-controlling device for stopping the spraying of the fluid that contains the particles after spraying a prescribed quantity of particles into the test chamber.04-04-2013
20090044637Drop detector system - The invention provides an optical drop detection system (02-19-2009
20110308328SENSOR FOR DETECTING BUBBLES IN A LIQUID FLOWING THROUGH A FLOW PATH - The invention relates to a sensor (12-22-2011
20110214511FLUID ANALYSIS SYSTEM AND METHOD FOR OPERATION OF AN ANALYSIS SYSTEM - A fluid analysis system (09-08-2011
20120152032Drip Monitor - A low power, low cost system and method for the detection of flow disturbances in a fluid dripping system is disclosed. In one embodiment, a light source and a light detector configured to monitor the amount of light passing through a droplet while the droplet is suspended and later falls from the tip of a tube. In another embodiment, dripping fluid is monitored from a system maintained part of the time in a sleep mode to conserve power, the system waking up at predetermined times to determine from detected light whether the monitored system is functioning properly.06-21-2012
073861070 By measuring tracer concentration 3
20110303019MINIMALLY INTRUSIVE MONITORING OF A MULTIPHASE PROCESS FLOW USING A TRACER - An apparatus for and a method of monitoring multiphase fluid flow passing within a pipe is provided. The method includes the steps of: a) providing a flow pressure value and a flow temperature value for the multiphase fluid flow within the pipe; b) sensing the fluid flow with a fluid flow meter operable to be attached to an exterior of the pipe, the flowmeter including a spatial array of at least two sensors disposed at different axial positions along the pipe, and producing flow velocity signals indicative of a velocity of the fluid flow traveling within the pipe; c) selectively injecting at least one tracer into the fluid flow passing within the pipe, at a known injection flow rate and concentration; d) sensing a sample of the fluid flow for the tracer, and producing tracer concentration signals indicative of the concentration of the tracer in the fluid flow; and e) determining one or more of a gas component flow rate, an oil component flow rate, and a water component flow rate, using one or more of the flow pressure value, the flow temperature value, the flow velocity signals, and the tracer concentration signals.12-15-2011
20090241685SYSTEMS AND METHODS FOR INTERCEPTING SUBMARINE GROUNDWATER FOR DESALINATION - The systems and methods described herein allow for intercepting submarine groundwater discharge to be used as a supply source for desalination processes. In one practice a dye-dilution seepage meter is employed as a device for locating water sources. These meters can be placed in estuaries and other locations that may be candidate locations to test for flows of groundwater. In areas of suspected SGD, the meters can be deployed to quantify the potential yield and quality (e.g. salt content) of the resource. Regarding the water quality, it is important to note that even brackish water sources can greatly reduce the energy needed to achieve potable water by desalination.10-01-2009
20080196509Seepage meter for measuring submarine groundwater discharge - Automated seepage meters that can detect and quantify groundwater outflow and seawater infiltration. In addition to its capabilities in saltwater-influenced systems, the automated seepage meter can detect and quantify groundwater outflow and surface water infiltration in freshwater systems (e.g., aquatic, riverine, lacustrine environments). Based on a dye-dilution technique, this instrument provides high resolution time series data for submarine groundwater discharge to the coastal zone. The dye dilution method may employ two repeatable steps: the timed injection of a water-soluble dye into a dye mixing chamber mounted in series with a seepage or collection chamber and the subsequent timed measurements of the absorbance of the dyed solution.08-21-2008
073227000 Area-velocity integrating 1
20090031797Multi-function flow tester - A fluid flow tester for measuring minute volumes of fluid and for calibrating medical devices, such as intravenous infusion pumps, includes a plurality of valves and associated conduits which direct fluid from the device being tested to a transparent vertical column. A plurality of sensors, each including a light emitting diode and a light detector, are arranged along the axial length of the column at a predetermined spacing between adjacent sensors. Fluid from the device being tested is directed through the flow tester by the valves and associated conduits into the column where it rises. The meniscus of the fluid rising in the column is detected by the sensors. The sensors provide signals to a microcontroller which calculates the time that it takes for the fluid to pass each sensor. Knowing this timing and the volume of the column, the flow rate of the fluid may be calculated by the microcontroller.02-05-2009
Entries
DocumentTitleDate
20090217770TESTING DEVICE FOR TUBE BUNDLE REACTORS - The invention relates to a testing device for tube bundle reactors, with a multitude of tubes (09-03-2009
20100154559FLOW SENSING DEVICE INCLUDING A TAPERED FLOW CHANNEL - A fluid flow sensing device can include a tapered fluid flow channel formed into a main channel defining a fluid flow tube as an alternate fluid flow path. A tapered fluid flow channel can bypass some fluid flow from the main fluid flow channel into said alternate fluid flow path and a flow sensor disposed within said alternate fluid flow path. The tapered flow channel is tapered in a direction of fluid flow toward said flow sensor to thereby reduce flow eddies and enable optimal sensing performance by fluid flow sensor. An upstream fluid flow channel and a downstream fluid flow channel can be molded into the main fluid flow channel, especially bypassed in the fluid flow path of the main fluid flow channel. A fluid flow sensor can be placed between the upstream fluid flow channel and the downstream fluid flow channel for measuring fluid flow rate the channel.06-24-2010
20110192233VERSATILE HIGH ASPECT RATIO ACTUATABLE NANOSTRUCTURED MATERIALS THROUGH REPLICATION - A method of forming a nanostructured surface, the method comprising including providing an original nanostructured surface having an array of high aspect ratio structures formed on a planar substrate; forming a negative replica mold of the original nanostructured surface, wherein the negative replica mold comprises a flexible material; deforming the negative replica mold; and using the deformed negative replica mold to form a deformed replica of the original nanostructured surface, wherein the deforming step is performed at least one of before, during, or after introducing a material for forming the deformed replica into the negative replica mold.08-11-2011
20100162826Synthesis of Styrene-Soluble Ionic Comonomer - A method for the in-situ preparation of an ionic comonomer, such as zinc dimethacrylate, dissolved in styrene monomer, for use in production of polystyrene is disclosed. The method generally includes adding comonomer chemical precursors to a solution of styrene and nonionic surfactant. The resulting ionic comonomer may be further dissolved in styrene and polymerized to form a product that may have improved properties.07-01-2010
20130036831METHOD AND APPARATUS FOR ESTIMATING THE DRY MASS FLOW RATE OF A BIOLOGICAL MATERIAL - A method and an apparatus for measuring dry mass flow rate for a biological material.—The method steps include conveying the biological material through a measuring station, scanning the biological material with electromagnetic radiation of at least two different energy levels, determining the amount of radiation transmitted through the biological material at said two energy levels, and summing, for each of sad two energy levels, the radiation transmission values over a time frame to summed radiation transmission values. Further, a wet dry mass flow rate is estimated based on the summed radiation transmission values for said two energy level. The moisture content of the biological material is estimated based on the amounts of radiation transmitted through the biological material. The estimated wet dry mass flow rate is scaled in accordance with the estimated moisture content of the biological material, thereby providing an estimate of the dry mass flow rate.02-14-2013
20130086992FLUID METER, IN PARTICULAR A WATER METER - The invention relates to a fluid meter, in particular a water meter, comprising a counter presenting an upper electronic card including a meter screen, the counter being covered by a cover including a window for viewing said screen, and said cover itself being covered by a cap presenting an external window for viewing said screen, a screen cover being mounted on said cap to cover and protect said screen and said external window. According to the invention, said screen-cover is provided with at least one pivot pin placed on a bearing carried by said cap, and said cap is provided with at least one orifice for passing a locking element for locking said pin on said bearing, the locking element being carried by said cover.04-11-2013
20130061684AIR MASS FLOW METER - An air mass flow meter, includes a housing made of plastic having an electrically insulating effect. A flow channel is formed in the housing. The air mass flow motion also includes a sensor element which is arranged in the housing and detects the air mass flowing in the flow channel. Conductive paths are arranged in the housing and connect the sensor element to connection pins. In order to provide a mass air flow meter which is cost-effective to produce and allows precise measurement of a mass air flow, the entire housing is made of plastic and at least one part of the flow channel has electrostatically dissipative properties.03-14-2013
20110308326INSUFFLATOR - The invention relates to an insufflator with a supply connection (12-22-2011
20110308325APPARATUS FOR GENERATING SMALL FLOW RATES IN A CHANNEL - A fluidic apparatus for a sample separation system includes a fluid inlet path for supplying a fluid, an inlet sensor adapted for measuring a flow rate of the fluid in the fluid inlet path, a splitting point arranged downstream of the fluid inlet path and adapted for splitting the fluid into a first path and into a second path, and a second path sensor adapted for measuring a flow rate of a part of the fluid conducted into the second path.12-22-2011
20090013797Magnetic flow sensor - A flow sensor for determining the flow rate of a fluid therethrough. The flow sensor may include a chamber for the fluid to flow therethrough, a moveable magnet positioned within the chamber, a stationary magnet positioned about the chamber, and one or more sensors positioned about the chamber to determine the position of the moveable magnet therein.01-15-2009
20110247429FILTER WITH MEMORY, COMMUNICATION AND PRESSURE SENSOR - The present invention describes a system and method for accurately measuring the pressure within a filter housing. A pressure sensor and a communications device are coupled so as to be able to measure and transmit the pressure within the filter housing while in use. This system can comprise a single component, integrating both the communication device and the pressure sensor. Alternatively, the system can comprise separate sensor and transmitter components, in communication with one another. In yet another embodiment, a storage element can be added to the system, thereby allowing the device to store a set of pressure values. The use of this device is beneficial to many applications. For example, the ability to read pressure values in situ allows integrity tests to be performed without additional equipment. In addition, integrity testing for individual filters within multi-filter configurations is possible.10-13-2011
20090078055METHODS AND APPARATUS FOR PRESSURE COMPENSATION IN A MASS FLOW CONTROLLER - Performance of mass flow controller may be vulnerable to pressure transients in a flow path to which the controller is coupled for the purpose of controlling the fluid flow. A system and method are provided for reducing or eliminate performance degradations, instabilities, and/or inaccuracies of a mass flow controller caused by changes in the pressure environment. In particular, a method and system are provided for compensating for pressure transients in the pressure environment of a flow path and mass flow controller.03-26-2009
20110283808ENVIRONMENTAL TESTING DEVICE - An environmental testing device includes a humidity control module, a temperature control module; and an air circulation module. The air circulation module includes an enclosure and a fan received in the enclosure. Two pairs of airflow openings are defined in the enclosure and form different airflow passages that allow air to flow along different directions in the environmental testing device.11-24-2011
20080276722ELECTRONIC FLUID DISPENSING APPARATUS AND RELATED METHOD - An electronic fluid dispensing apparatus and related method. At least some of the illustrative embodiments are apparatuses comprising a funnel comprising a receiving mouth open to atmosphere, a sidewall that defines a frustum, and an apex that comprises an end portion (the frustum tapers from the receiving mouth towards the apex), a tube fluidly coupled to the end portion (the tube configured to receive a fluid from the funnel, the combined volume of the funnel and the tube being no greater than 64 fluid ounces), and a device coupled to the tube (the device configured to determine a parameter of a fluid that flows through the funnel and tube).11-13-2008
20110005333FACE SEAL GASKET - Various embodiments of the present invention provide improved face seal gaskets for use in connecting meters and other devices to pipelines. The improved face seal gaskets include a planar annular ring portion and one or more tabs extending substantially perpendicularly from the annular ring portion. In use, the annular ring portion is disposed adjacent a sealing surface on the inlet or outlet of the device to facilitate a fluid tight connection between the device and the pipeline. The tabs engage complementary grooves formed in the inlet or outlet portions of the device to facilitate alignment of the annular ring to the sealing surface thereon. The tabs may also retain the face seal gasket adjacent the sealing surface to facilitate improved installation of the device to the pipeline.01-13-2011
20110138927FLOW RATE MEASURING APPARATUS INCLUDING A RECESS FOR CHANGING AIR FLOW DIRECTION - An inflow port and an outflow port of a bypass passage have openings on a front surface near a projecting end and on a bottom surface, respectively, of a bypass passage forming member. A recess portion is disposed on the front surface of the bypass passage forming member on a circuit housing portion side of the inflow port so as to extend at a predetermined depth over an entire region in a longitudinal direction of a short side of a rectangular cross section of the bypass passage forming member.06-16-2011
20090241683MASS AIR FLOW SENSOR ADAPTOR - Mass air flow sensing for internal combustion engines. In one aspect, a sensor adaptor for use in an internal combustion engine includes an inlet housing including an approximately 90-degree elbow and directing air within the inlet housing to the internal combustion engine in an airflow direction. A mass air flow sensor is coupled to the housing at a location after the 90-degree elbow with respect to the airflow direction and senses the air flowing within the inlet housing.10-01-2009
20090241684MEASURING UNIT FOR AIR FLOW - A casing is capable of being transported by a transportation apparatus in an automated warehouse and being placed in a cell of the automated warehouse. A plurality of strings are suspended in the casing, and displacement of the strings caused by the air flow in the casing is measured to determine the state of the air flow based on the measured displacement.10-01-2009
20100192699System and Method of Non-Invasive Continuous Level Sensing - Embodiments of the present invention provide a system and method for detecting the level of a fluid in a surgical cassette by projecting light from a linear light source into a wall of a cassette. Depending on the amount a light reflected or refracted in the cassette (i.e., due to the cassette material/fluid interface or cassette material/air interface (or other interface)) various portions of a linear sensor array will be more or less illuminated. By examining the illumination of the linear sensor array, the level of fluid in the chamber can be determined.08-05-2010
20090019943Gas Flow Rate Verification Unit - A gas flow rate verification unit capable of enhancing reliability of gas flow rate verification. The gas flow rate verification unit has a first cutoff valve that is connected to a flow rate control device and to which gas is inputted, a second cutoff valve for discharging the gas, a communication member for allowing the first cutoff valve and the second cutoff valve to communicate with each other, a pressure sensor for detecting the pressure of the gas supplied between the first cutoff valve and the second cutoff valve, a temperature detector for detecting the temperature of the gas supplied between the first cutoff valve and the second cutoff valve, and a control means for verifying the flow of the gas flowing in the flow control device, the verification being performed by using both the result of the pressure detected by the pressure sensor and the result of the temperatures detected by the temperature detector. The volume (Vk) between the valve seat of the first cutoff valve and the valve seat of the second cutoff valve is equal to or less than the volume (Ve) between the outlet of the flow control device and the valve seat of the first cutoff valve.01-22-2009
20090145243ROBUST MEMS FLOW DIE WITH INTEGRATED PROTECTIVE FLOW CHANNEL - A MEMS flow sensor has a flow channel that avoids wire bond pads and ancillary circuit elements. A fluid can move from the bottom of the sensor substrate, though an inlet hole, over a sensing element on the top of the substrate, and then through an outlet hole. The inlet hole and the outlet hole can pass from the substrate top to the substrate bottom. A top cap can be fixed to the top of the substrate such that it covers the sensing element, the inlet hole, and the outlet hole. The top cap constrains the flow channel and keeps fluid, either gaseous or liquid, from exiting the channel and contacting the wire bond pads or ancillary circuit elements.06-11-2009
20110174081ANALYSIS DEVICE PROVIDED WITH FLOW SENSOR, AND FLOW SENSOR ADJUSTMENT METHOD - The present invention relates to a method of adjusting a flow rate sensor 07-21-2011
20110100134FILTER WITH MEMORY, COMMUNICATION AND PRESSURE SENSOR - The present invention describes a system and method for accurately measuring the pressure within a filter housing. A pressure sensor and a communications device are coupled so as to be able to measure and transmit the pressure within the filter housing while in use. This system can comprise a single component, integrating both the communication device and the pressure sensor. Alternatively, the system can comprise separate sensor and transmitter components, in communication with one another. In yet another embodiment, a storage element can be added to the system, thereby allowing the device to store a set of pressure values. The use of this device is beneficial to many applications. For example, the ability to read pressure values in situ allows integrity tests to be performed without additional equipment. In addition, integrity testing for individual filters within multi-filter configurations is possible.05-05-2011
20090000389MULTIPLE PATH AIR MASS FLOW SENSOR ASSEMBLY - A multiple path air mass flow sensor assembly includes an inlet duct which is divided into at least two separate ducts. A first duct has an air mass flow sensor disposed in conventional fashion therein. A second duct includes a damper or valve which may be selectively, partially or fully opened. At low air flow rates, the damper is closed forcing all air through the first duct. As engine speed increases and the air mass flow rate increases, the damper opens, either fully at a predetermined flow rate or proportionally over a predetermined flow rate range, to allow a larger volume of air through the inlet duct. The signal from the air mass flow sensor is adjusted by the engine controller to compensate for the (bypass) air flowing through the second duct.01-01-2009
20100313674Apparatus and Method for Metering Flare Gas - A flow cell assembly for measuring the flow rate of gas in a pipe having an optical probe mounted on a flow cell inserted between sections of pipe. A distal end of the optical probe is disposed within an internal bore of the flow cell. The optical probe is capable of measuring the velocity of particles in a gas flowing through the internal bore. A sensor mechanism may be mounted on the flow cell and have a sensor array with a distal end disposed within the flow cell internal bore. The sensor array is capable of measuring physical properties of the gas. The optical probe is self-aligned when mounted to the flow cell through the use of a locking cam and an orientation ring. Velocity and physical property measurements are used to calculate flow rate. Alternatively, the optical probe and sensor mechanism may be mounted directly onto an existing pipe.12-16-2010
20120144928FLUID FLOW CONDITIONER - A device and method for conditioning media flowing within a conduit enabling sensors placed within short straight run distances to measure media flow with improved accuracy employing a thermal flow instrument. A flow conditioner downstream of a media flow measuring transducer has walls that diverge in the flow direction to optimize readings of the media flow from the transducer.06-14-2012
20110185820STARTUP TECHNIQUES FOR A DIGITAL FLOWMETER - Startup and operational techniques for a digital flowmeter are described. The techniques select an optimal mode of operation for the digital flowmeter, depending on a current environment of the flowmeter. For example, during a startup operation of the flowmeter, the mode of operation might include a random sequence mode, in which filtered, random frequencies are applied as a drive signal to a flowtube associated with the digital flowmeter. Once the flowtube reaches a resonant mode of vibration, the digital flowmeter may transition to a positive feedback mode, in which a sensor signal representing a motion of the flowtube is fed back to the flowtube as a drive signal, as part of a feedback loop. Once an oscillation of the flowtube is achieved and analyzed, a digital synthesis mode of operation may be implemented, in which the analyzed sensor signals are used to synthesize the drive signal. In either the positive feedback mode or the digital synthesis mode, the digital flowmeter may revert to a previous mode to regain stable and desired oscillation of the flowtube, such as might be required during a recovery operation associated with a disturbance to an operation of the digital flowmeter.08-04-2011
20110132101FLOW RATE MEASURING APPARATUS INCLUDING A RECESS FOR CHANGING AIR FLOW DIRECTION - An inflow port and an outflow port of a bypass passage have openings on a front surface near a projecting end and on a bottom surface, respectively, of a bypass passage forming member. A recess portion is disposed on the front surface of the bypass passage forming member on a circuit housing portion side of the inflow port so as to extend at a predetermined depth over an entire region in a longitudinal direction of a short side of a rectangular cross section of the bypass passage forming member.06-09-2011
20100031753Apparatus for ascertaining and/or monitoring fill level and/or flow of a medium - An apparatus for ascertaining and/or monitoring fill level and/or flow of a medium in a containment, including: at least one antenna, which radiates and/or receives high frequency signals according to a predetermined radiation characteristic along a main radiating axis in the direction of the surface of the medium; a control/evaluation unit, which evaluates the reflected high frequency signals and determines fill level on the basis of the travel time of the high frequency signals and/or flow on the basis of a Doppler frequency of the reflected high frequency signals; and at least one lens located between the antenna and the medium and having a first focal length in the direction of the antenna and a second focal length in the direction of the medium. A first focal point of the first focal length of the lens is so selected that the emitted high frequency signals of the antenna hit the lens within the lens aperture and that a second focal point of the second focal length lies in an opening region of the containment having an opening diameter that is smaller than the diameter of the lens aperture.02-11-2010
20090173164AIRFLOW DETECTION APPARATUS - An airflow detection apparatus includes an enclosure defining a through hole therein, a conductive pole received in the through hole of the enclosure, a first conductive board electrically connected to a first end of the conductive pole and an electrode of a power source, and a second conductive board electrically connected to the other electrode of the power source. The first and second conductive boards are respectively attached to a top end and a bottom plate of the enclosure. The second conductive board defines a through hole therein to make an end of the conductive pole to pass therethrough, and a diameter of the through hole of the second conductive board is greater than that of the conductive pole. When the conductive pole is driven by an airflow, it will swing to contact with a side bounding the through hole of the second conductive board.07-09-2009
20120031194METHOD FOR DIAGNOSING THE OPERATION OF A WATER PURIFICATION INSTALLATION OF THE FILTER MEDIUM DEVICE TYPE, AND A DIAGNOSTIC TOOL SUITABLE FOR SAID METHOD - The invention relates to a method of diagnosing the operation of a water purification installation of the filter medium device type, the material of the filter medium being made up of particles, the method including the following steps: a characterization step of characterizing at least one physical and/or mechanical parameter of the filter medium device to establish a permeability value Ks (expressed in m/s); a comparison step of comparing said established permeability value Ks with a predetermined range [k02-09-2012
20120011939HYDRATION SYSTEM - A device, system and method relating to dispensing fluid from a device. The system relates generally to a hand-held fluid dispensing module, a control module coupled to the hand-held fluid dispensing module, a fluid container located in close proximity to the hand-held fluid dispensing module and the control module, and a cooling module coupled to the control module. The hand-held device being configured to control and determine the amount of fluid dispensed from the device. The method relates to using the system and dispensing fluid from the hand-held fluid dispensing module by either applying pressure to an exterior portion of the hand-held dispensing module or providing a vacuum to the hand-held fluid dispensing module.01-19-2012
20120055261METHOD AND APPARATUS FOR COUPLING A CASE TO A VIBRATING FLOW METER - A vibrating flow meter (03-08-2012
20120055260FLOW METER INCLUDING A BALANCE MEMEBER - A flow meter (03-08-2012
20120060622SYSTEMS AND METHODS FOR SIMULATING FLOW OF CEREBROSPINAL FLUID - Systems and methods for controlling and monitoring flow of a desired fluid are disclosed. An in vitro pulsatile flow system has a fluid reservoir that contains the desired fluid, which simulates a physiologic fluid, such as cerebrospinal fluid. A pump transports the desired fluid from the fluid reservoir to a test material to permit monitoring of adhesion of cells and tissue to the test material.03-15-2012
20120152031WRIGGLER FOR GAS METER ENDPOINT - A wriggler device is provided for a gas meter endpoint or gas meter index as an interface with a gas meter drive mechanism. In general, the wriggler may include a base surface, at least one interface wall, and at least one guide wall. The base surface has a peripheral edge and a center point. The interface wall extends at an interface angle from the base surface, and may have an interface surface and a tip portion, with the tip portion spaced from the base surface. The at least one guide wall may extend between the base surface and the tip portion, and may have a guide surface. The guide wall may be configured to guide the drive mechanism along the guide surface to the base surface. Engagement of the interface surface by the drive mechanism causes the wriggler to rotate.06-21-2012
20120247224FILTER INSPECTION METHOD AND FILTER INSPECTION APPARATUS - There is disclosed a filter inspection method which is excellent in sensitivity to detect defects of a filter and in operation efficiency. The filter inspection method includes a humidifying step of exposing a porous filter to moisture-containing air; and a detecting step of introducing water particles into the filter in a wet state through the humidifying step, to detect the water particles which pass through and flow out of the filter, thereby detecting defects of the filter.10-04-2012
20120247223Electroless Plated Fluid Flow Conditioner and Pipe Assembly - A method and system for electroless nickel plating of fluid flow measurement components used in oil and gas pipelines provides uniformly and consistently plating of all surfaces of the fluid flow components, including flow conditioners, with an electroless nickel plating that imparts the component with desirable characteristics related to hardness, smoothness, wear and abrasion resistance, and corrosion and oxidation resistance, such that the build up of contaminant deposits on the component is reduced and repeatable and accurately fluid flow measurements can be made.10-04-2012
20090114035Testing Device for High Pressure Injectors of a Common Rail Injection System, and Method for Testing High Pressure Injectors - A testing device (05-07-2009
20120186361Mass Flow Meter - A mass flow meter comprising a housing including a fluid inlet and a fluid outlet. The housing defines a chamber and a rotatable member is arranged in the chamber so as to be rotatable about an axis. A momentum device is also arranged in the chamber and connected to the rotatable member via a biasing element so as to be rotatable about the axis and rotatable relative to the rotatable member. A fluid path in fluid communication with the fluid inlet and the fluid outlet is provided. The fluid path passes through both the rotatable member and the momentum device. The fluid path enters the momentum device at a radial distance r07-26-2012
20120255366METHOD TO DETECT GROSS LOSS IN COOLANT BASED ON CURRENT FEEDBACK FROM THE HIGH TEMPERATURE PUMP - A system and method for determining a loss of cooling fluid from a thermal sub-system in a fuel cell system. The method includes monitoring current feedback from a high temperature pump that pumps the cooling fluid through a coolant loop. A measured current from the pump is compared to an expected current for the system operating conditions, and if that current is significantly less than what is expected, then it may be as a result of low cooling fluid. If the measured current is less than the expected current for a predetermined period of time, then the system can take mitigating action as a result of a low cooling fluid. Further, if the pump speed is too low to provide an accurate current measurement, then it can be increased if an overflow tank level sensor indicates a low cooling fluid level.10-11-2012
20120227510Fluid-Controlled Electronic Games and Measurement Devices - A device for estimating a stream of urine entering a toilet or urinal includes a measuring unit configured to estimate an amount of the stream of urine, and an indicator to provide an indication to an individual of the amount of the stream of urine.09-13-2012
20120266687EXHAUST GAS SAMPLING DEVICE - An engine gas sample device which can set a dilution rate of a sample gas without being restricted by warranty flow ranges of first and second flowmeters. The device makes it possible to dilute the sample gas at a low dilution rate, and is provided with a downstream-side dilution tunnel in which a part of exhaust gas flowing through an exhaust pipe is introduced as sample gas into a mixing part. A dilution gas flow path which is connected to an upstream side of the downstream-side dilution tunnel and includes the first flowmeter FM10-25-2012
20120079889AIR FLOW QUANTITY MEASURING APPARATUS FOR INTERNAL COMBUSTION ENGINE - A flow meter outputs a frequency signal, which corresponds to an air flow quantity of intake air to be supplied to an engine. In an engine control unit, when a sensed value of the air flow quantity, which is obtained based on the frequency signal, is within an estimated air flow quantity range, which is estimated based on an operational state of the engine, the sensed value of the air flow quantity is determined as a measurement value of the flow meter. In contrast, when the sensed value of the air flow quantity is out of the estimated air flow quantity range, a median of the estimated air flow quantity range is determined as the measurement value of the flow meter.04-05-2012
20110259117WRIGGLER FOR GAS METER ENDPOINT - A wriggler device is provided for a gas meter endpoint or gas meter index as an interface with a gas meter drive mechanism. In general, the wriggler may include a base surface, at least one interface wall, and at least one guide wall. The base surface has a peripheral edge and a center point. The interface wall extends at an interface angle from the base surface, and may have an interface surface and a tip portion, with the tip portion spaced from the base surface. The at least one guide wall may extend between the base surface and the tip portion, and may have a guide surface. The guide wall may be configured to guide the drive mechanism along the guide surface to the base surface. Engagement of the interface surface by the drive mechanism causes the wriggler to rotate.10-27-2011
20120279314Method for measuring a material flow by means of microwaves, sensor management and device having a sensor arrangement - The invention relates to a method for measuring a material flow by means of microwaves, a sensor arrangement for measuring a material flow by means of microwaves and a device having a sensor arrangement, and to the use of a monostatic continuous wave radar for measuring a moving material flow consisting of particles or fluid. This has the advantage that the material flow consisting of particles or fluid can be quantitatively detected and/or the particles can be counted.11-08-2012
20120279313FLUID FLOW VELOCITY AND TEMPERATURE MEASUREMENT - A method is provided for monitoring velocity of a fluid flow through a predetermined fluid flow space. A fiber optic conductor includes a flow measurement portion defining an elongated dimension extending across a portion of the fluid flow space. The fluid flow in the fluid flow space causes the measurement portion of the fiber optic conductor to flex in a direction transverse to the elongated dimension. Optical radiation is supplied to the fiber optic conductor, and optical radiation is received from the fiber optic conductor after the supplied optical radiation has passed through the measurement portion. The received optical radiation is analyzed to effect a determination of a flow velocity of the fluid flow.11-08-2012
20120325011METHOD FOR MAKING RESIN HOLLOW BODY AND AIR FLOW MEASURING DEVICE - According to a method for making a resin hollow body, in a primary-formation process, molten resin is injected into spaces defined by dies to form resin components. In a die-moving process, each component is held in at least one die. Joining edges of the components are brought close through relative movement of the dies to make a predetermined arrangement of the components. In a secondary-formation process, molten resin is injected into a region where the edges are adjacent. The edges are joined to form an outer wall, partition wall, and hollow portion of the hollow body. At least one of the edges constituting the partition wall includes a linear groove. In the die-moving process, the partition-wall-constituting edges are brought into contact to define by the groove a linear hollow cavity surrounded with the edges. In the secondary-formation process, the cavity is filled with molten resin to join the partition-wall-constituting edges.12-27-2012
20130008260Flow Measuring Device - The present invention involves an improvement in the measurement of sewage discharge through the measurement of mass flow rate and conversion to volumetric flow rate using a flow measuring device connected to a segment of pipe through which the sewage flows.01-10-2013
20130019692AIR FLOW MEASURING DEVICE - An air flow measuring device is adapted to be attached to a duct. The device includes a first housing, a second housing, and a flow sensor. The first housing defines a bypass flow passage which takes in a part of air flowing in the duct, and includes a hollow part and a recess. The bypass flow passage is formed in the hollow part. The recess is formed on an upper side of the hollow part in a vertical direction of the device, and at the recess, an outer surface of the first housing is recessed inward of the first housing. The second housing is formed through secondary formation with the first housing as a primary formed part. The first housing is held on a lower side of the second housing in the vertical direction. The flow sensor is disposed in the bypass flow passage.01-24-2013
20130167652Integrated Circuit and Apparatus for Detecting Oscillations - An integrated circuit includes a pulse generator to provide an excitation pulse to an output terminal and a comparator to receive a signal in response to the excitation pulse and for comparing the signal to a threshold to produce a comparator output signal corresponding to oscillations in the signal. The integrated circuit further includes a counter to count pulses in the comparator output signal and a discriminator circuit to compare a count value of the counter to a damping threshold and for providing an output signal having a first value when the count value is equal to or exceeds the damping threshold and otherwise having a second value.07-04-2013
20110048140CORRECTING FOR TWO-PHASE FLOW IN A DIGITAL FLOWMETER - A flowmeter is disclosed. The flowmeter includes a vibratable conduit, and a driver connected to the conduit that is operable to impart motion to the conduit. A sensor is connected to the conduit and is operable to sense the motion of the conduit and generate a sensor signal. A controller is connected to receive the sensor signal. The controller is operable to detect a single-phase flow condition and process the sensor signal using a first process during the single-phase flow condition to generate a validated mass-flow measurement. The controller is also operable to detect a two-phase flow condition and process the sensor signal using a second process during the two-phase flow condition to generate the validated mass-flow measurement.03-03-2011
20110219884POSITION TESTING APPARATUS - A position testing apparatus includes a stage on which a piezoelectric element object is set, a through hole formed through the stage and covered with the piezoelectric element set on the stage according to a positioning state, and a flow measurement unit configured to draw air through the through hole from around the piezoelectric element and determine the positioning state of the piezoelectric element according to a flow rate of the drawn air. The position testing apparatus is capable of surely testing a positioning state of the piezoelectric element.09-15-2011
20130152698Heated Wet Gas Flow Meter - A flow body flow meter includes a flow body, a heater, and a sensor. The flow body includes an inlet, an outlet, and an internal passage coupling the inlet and the outlet. The heater evaporates at least some liquid droplets in a stream received by the flow body. The sensor has one or more sensor probes in the flow body to measure a fluid property of the stream.06-20-2013
20130192385DEVICE FOR MEASURING DROPLET MASS FLUX DISTRIBUTIONS TO TEST SPRAY INJECTION SYSTEM AND THE MEASURING METHOD - A technology to measure the mass flux distribution of liquid spray to evaluate droplet dispersion of a spray device for liquids such as fuel, paints, or coating agents, is disclosed. The apparatus for measuring spray mass flux to evaluate the droplet dispersion of the spray device includes a liquid spraying part including a spray nozzle to spray liquid, a spray collecting part to collect the liquid sprayed from the liquid spraying part, a transfer tube to transfer the liquid collected in the spray collecting part, a multi-cylinder part including a plurality of cylinders to receive the liquid collected in the spray collecting part, a movable mass measurement part to measure amass of each cylinder of the multi-cylinder part, and a mass flux calculating part to calculate a distribution graph of mass flux of the sprayed liquid.08-01-2013

Patent applications in class VOLUME OR RATE OF FLOW

Patent applications in all subclasses VOLUME OR RATE OF FLOW