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Volume of flow, speed of flow, volume rate of flow, or mass rate of flow

Subclass of:

073 - Measuring and testing

073100010 - INSTRUMENT PROVING OR CALIBRATING

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Class / Patent application numberDescriptionNumber of patent applications / Date published
073100160 Volume of flow, speed of flow, volume rate of flow, or mass rate of flow 89
20130036788FAULT DIAGNOSIS APPARATUS FOR AIRFLOW METER - Disclosed is a fault diagnosis apparatus for an airflow meter for determining that the airflow meter has a fault when a divergence ratio, i.e., a divergence value of an estimated intake-air quantity with respect to an actual intake-air quantity obtained by the airflow meter is greater than a fault-determination reference value determined based on a rotation speed of an internal combustion engine. As the engine speed reduces, an upper-limit diagnosis criterion increases and a lower-limit diagnosis criterion decreases, so as to narrow an area for determining that the airflow meter has a fault. Hence, the fault diagnosis for the airflow meter can be performed in the entire engine rotation speed range, i.e., in the entire operation range of the internal combustion engine, thus preventing a deterioration in the exhaust performance, which may occur owing to a failure in the airflow meter, beforehand.02-14-2013
20120216594FRAMEWORK WITH STANCHIONS FOR A PROVER - A prover mounted upon a supporting lower framework includes a piston supporting rod extending longitudinally through a cylinder, which cylinder receives and discharges a fluid to measure the flow rate of the fluid by translation of the piston from the fluid receiving end to the fluid discharging end. Motive means supported on a frame mounted on the prover draws the rod toward the fluid receiving end of the cylinder. An upper framework is attached to the lower framework through a plurality of stanchions. Various I-beams formed as part of the upper framework enhance rigidity to the combination of lower framework and upper framework. The combination of lower framework and upper framework provides support for the prover in a horizontal or a vertical orientation without affecting the operation, repair or maintenance of the prover.08-30-2012
20090272173THREE PICKOFF SENSOR FLOW METER - A three pickoff sensor flow meter (11-05-2009
20090235716DETERMINING TOTAL MILL FLOW IN A BIOFUEL PRODUCTION PROCESS - System and method for determining total mill flow (TMF) in a biofuel production process. Measured slurry flow and density values from a process fed by mill(s), backset, and at least one water source, are received. The slurry includes biomass solids and water. Measured backset flow and density values, and a backset composition value are received, as well as a slurry composition value indicating % biomass solids of the slurry is received. A quantity of biomass solids and/or water of the slurry determined based on the slurry flow, density, and composition, and a quantity of the biomass solids and/or water of the backset determined based on the backset flow and density, backset composition, and a system filter characterizing time delays and lags between measurements of the backset flow and biomass slurry flow. Total mill flow is determined based on the quantities of biomass solids and/or water of the slurry and backset.09-24-2009
20090007624CONTINUOUS FLOW SAMPLE INTRODUCTION APPARATUS AND METHOD - The present invention relates generally to an apparatus and method for sample analysis. More particularly, the invention encompasses a method and an apparatus for continuous, constant, flow sample introduction of fluid samples of varying viscosity and composition. The invention further includes the option of the apparatus being associated with at least one fluid analyzer system. A temperature controlled environment may also be provided for the processing and analysis of a fluid sample.01-08-2009
20100089118Method for measuring a fluid composition parameter by means of a flow sensor - The flow of a fluid of unknown composition is measured by leading the fluid over a first temperature sensor, a heater and a second temperature sensor. The temperature difference DTP between the temperature sensors is measured, as well as the temperature T of at least one of them. In addition, calibration data is used to store the temperature Tref of a known reference fluid. The offset T−Tref at a given temperature difference DTP is a direct measure of the composition of the fluid and allows to retrieve any parameter depending on the same.04-15-2010
20090320552Parallel flow meter device for measuring flow rate in pipes - The present invention relates to methods and apparatuses for measuring flow rate in pipes. The standard method of installing flow meters inside pipes to measure flow rates are costly and result in loss of energy and reduction of flow. The present invention solves the problems of standard flow measuring method. The present invention uses an apparatuses comprising of a first pipe and a by-pass second pipe. The flow is partitioned between the first pipe and the by-pass second pipe. A flow meter is installed in the by-pass second pipe. The flow rate is measured through the by-pass second pipe, and using the by-pass second pipe flow rate, the combined flow rate through the first pipe and the by-pass second pipe is calculated. The invention describes two methods to calibrate the apparatuses and relate the flow rate in the by-pass second pipe to total combined flow rate.12-31-2009
20090151422MICROFABRICATED ELASTOMERIC VALVE AND PUMP SYSTEMS - A method of fabricating an elastomeric structure, comprising: forming a first elastomeric layer on top of a first micromachined mold, the first micromachined mold having a first raised protrusion which forms a first recess extending along a bottom surface of the first elastomeric layer; forming a second elastomeric layer on top of a second micromachined mold, the second micromachined mold having a second raised protrusion which forms a second recess extending along a bottom surface of the second elastomeric layer; bonding the bottom surface of the second elastomeric layer onto a top surface of the first elastomeric layer such that a control channel forms in the second recess between the first and second elastomeric layers; and positioning the first elastomeric layer on top of a planar substrate such that a flow channel forms in the first recess between the first elastomeric layer and the planar substrate.06-18-2009
20130047695Ultrasonic Flow Meter - An ultrasonic flow meter is disclosed, including a switching unit for switching electrical transmission signals between a signal generator and at least two ultrasonic transducers and for switching electrical reception signal between the transducers and a receiver circuit, wherein the switching unit is coupled to an output terminal of an operational amplifier of the signal generator and to an inverting input terminal of an operational amplifier of the receiver circuit. Furthermore, a method for characterizing an ultrasonic transducer is disclosed, including the step of determining directly from one or more supply current signals for an active component of a signal generator one or more quantities useful for characterizing the transducer. Furthermore, a method for determining the time delay of an ultrasonic signal in a flow path of an ultrasonic flow meter is disclosed, including the step of comparing physically transmitted, delayed and received signals with simulated non-delayed signals.02-28-2013
20110197650METHODS OF MANUFACTURING AND TEMPERATURE CALIBRATING A CORIOLIS MASS FLOW RATE SENSOR - A subassembly of a Coriolis flowmeter is fabricated from a single monolithic piece of elastic polymeric material. The subassembly includes two flow-sensitive members and a base integrally connected to the two flow-sensitive members. The two flow-sensitive members include straight sections, and are substantially similar and parallel to each other. Flow passages are drilled along the straight sections of the two flow-sensitive members, and drilled entrances are sealed using the elastic polymeric material. A temperature sensor is fixedly attached to a flow-sensitive member for measuring a temperature of the flow-sensitive member and communicating the temperature to a metering electronics. The metering electronics determines a calibrated flow rate of fluid flowing through the Coriolis flowmeter that accounts for the temperature.08-18-2011
20090277243Electrically controlled hydraulic valve calibration method and system - A method of calibrating an electrically controlled hydraulic valve having a known relationship between flow rate through the valve and displacement of a valve element is disclosed. The method includes ascertaining a first current level for actuating the electrically controlled hydraulic valve to move the valve element to a position adjacent an inlet port, and a first displacement of the valve element responsive to the first current level. The method also includes ascertaining a second current level for actuating the electrically controlled hydraulic valve to move the valve element from the position adjacent the inlet port to a position permitting flow through the inlet port, and ascertaining a second displacement of the valve element responsive to the second current level. The method further includes establishing a relationship between current and displacement associated with the electrically controlled hydraulic valve.11-12-2009
20120291518Systems and Methods for Remote Testing of a Flow Switch - Systems and methods for the remote testing of a paddle-type flow detector, such as are common in fire protection systems. Specifically, the systems and methods provide for mechanical movement of the vane to test activation of the flow detector under a flow condition, and which measure the amount of time the vane takes to return to the ready position to verify the presence of a paddle on the vane.11-22-2012
20090266139REAL TIME LEAD-LINE CHARACTERIZATION FOR MFC FLOW VERIFICATION - A method and apparatus that solve the problem of accurate measurement of gas flow so that the delivery of gases in semiconductor processing may be performed with greater confidence and accuracy by performing real-time characterization of a lead-line for mass flow controller (MFC) flow verification are provided. In one embodiment a mass flow verifier (MFV) provides rate of rise information to a controller via a digital interface without correcting for lead-line influences. After receiving the rate of rise data from the tool host computer computes a gas mass correction factor in real-time based on at least one of the following: MFC temperature sensor data, lead-line temperature sensor data, lead-line pressure transducer data, and lead-line volume. The rate of rise data and gas mass correction factor are used to compute accurate mass flow. The accurate mass flow information may be used to calibrate the MFC.10-29-2009
20120291519METHOD FOR ADJUSTING FLOW MEASURING DEVICE - A method is for adjusting a flow measuring device that includes a housing and a flow sensor. The housing includes a bypass flow passage which is formed to take in a part of a mainstream of air. The sensor is disposed in the bypass flow passage and outputs an electrical signal in accordance with a flow rate of air. The bypass flow passage is formed in an asymmetrical shape with respect to the sensor in upstream and downstream directions of the mainstream. A flow from an upstream side toward a downstream side of the mainstream is a forward flow. A flow from the downstream side toward the upstream side of the mainstream is a backward flow. According to the method, an output from the sensor in a backward-flow region is obtained. Furthermore, the output of the sensor in the backward-flow region is adjusted to have a desired output characteristic.11-22-2012
20100139360DETERMINING THE FLOW RATE OF AIR IN A COMPUTER SYSTEM - Some embodiments of the present invention provide a system that determines a flow rate of air along an airflow path in a computer system. During operation the system monitors a first temperature profile from a first temperature sensor located in a first position in the airflow path, and monitors a second temperature profile from a second temperature sensor located in a second position in the airflow path, wherein the first position is upstream in the airflow path from the second position, and wherein the first position and the second position are separated by a predetermined distance along the airflow path. Next, the system computes a cross-power spectral density based on the first temperature profile and the second temperature profile. Then, the system determines a flow rate of air in the computer system based on the cross-power spectral density.06-10-2010
20090013753METHOD AND APPARATUS FOR PROVING FLOW METERS - A method and apparatus is disclosed that determines the time delay (01-15-2009
20090205400SYSTEM AND METHOD FOR MEASURING FLUID FLOW - A compound fluid flow metering system including two electromagnetic fluid flow meters is disclosed that substantially increases accuracy of metering total volumes and flow rates and provides consistent accuracy over time. Additionally, the compound fluid flow metering system is substantially maintenance free, and reduces pumping costs associated with maintaining adequate supply pressures.08-20-2009
20100154506METHOD FOR MOUNTING A PROVER - A method for mounting a prover and its attached motive means either horizontally or vertically as a function of the footprint available on the surface on which the prover is to be mounted. The method includes attaching the prover and its motive means to a lower framework. Attaching a plurality of stanchions to the lower framework. Mounting an upper framework on the stanchions. Adding a plurality of I-beams to the upper framework and to the stanchions to render the mounting for the prover rigid, whether the prover is mounted horizontally or vertically.06-24-2010
20100170322VIBRATORY FLOW METER AND METHOD FOR CORRECTING FOR AN ENTRAINED PHASE IN A TWO-PHASE FLOW OF A FLOW MATERIAL - A vibratory flow meter (07-08-2010
20130125612SENSOR ASSEMBLY VALIDATION - A method for validating a sensor assembly of a meter is provided. The method comprises a step of receiving one or more sensor calibration values. The method further comprises a step of comparing the received sensor calibration values to one or more known sensor calibration values. The method can then validate the sensor assembly if the one or more received sensor calibration values are within a predetermined tolerance of the one or more known sensor calibration values.05-23-2013
20110056265IDENTIFICATION OF AIR AND/OR FUEL METERING DRIFT - The disclosure relates to a system and method for identifying whether a difference between measured lambda and computed lambda, based on mass air flow and mass fuel flow, is due to a drift in fuel metering or a drift in air metering. The determination is based on also measuring exhaust gas NOx using a NOx sensor. By comparing the measured NOx to modeled NOx, drift can be attributed appropriately to the air flow measurement and/or the fuel flow measurement. Appropriate correction in the calibration can be undertaken to overcome sensor drift and/or drift in the fuel injector/fuel system flow characteristics.03-10-2011
20110000274AIR-MICROMETER CALIBRATION DEVICE - The present invention aims to provide an air-micrometer calibration device capable of securely causing an axis of a measuring-head tip portion and an axis of a master hole to coincide with each other. To this end, the air-micrometer calibration device (01-06-2011
20120240657INERT GAS DELIVERY SYSTEM FOR ELECTRICAL INSPECTION APPARATUS - An apparatus for electrical inspection is disclosed. The apparatus comprises an inert gas delivery system that delivers inert gas near a microscope imaging element and electrical test probes. A gas supply provides an inert gas such as argon or nitrogen. The inert gas displaces oxygen to prevent premature oxidation of the test probes. In one embodiment, one or more delivery tubes deliver inert gas to the measurement area.09-27-2012
20090064755Method for the calibration of a flow measurement in a flow system, and flow system for carrying out the method - The invention relates to a method for the calibration of a flow measurement in a flow system (03-12-2009
20090211330Method for ascertaining volume -or mass- flow of a medium - A method for ascertaining volume- or mass-flow of a medium in a pipeline, or measuring tube, of radius (r) via a sound entrainment method, wherein ultrasonic measuring signals are transmitted and/or received along a plurality of defined sound paths (m). During a calibration phase, successive, different flow profiles (v(r)) of a measured medium are established in the pipeline, or in the measuring tube, and wherein, for each flow profile (v(r)), a defined volume flow, or a defined mass flow, is ascertained, wherein, on the basis of measured values (v)08-27-2009
20100064766CALIBRATION TOOL FOR AIR DATA MEASUREMENT DEVICES - A calibration tool for an air data sensor of a vehicle comprises a target surface which is disposable on the vehicle. The calibration tool may further comprise a light pointer which is mountable on the air data sensor and which is operative to project a beam of light toward the target surface. The air data sensor may be configured as a flow direction sensor which may include at least one of an alpha vane for measuring angle of attack or a beta vane for measuring sideslip. The flow direction sensor may be mountable in spaced relation to the vehicle via a standoff. The flow direction sensor may include a hollow pivot arm having a laser pointer mounted therewithin for projecting a beam of laser light onto the target surface.03-18-2010
20110247390METHOD AND MASS FLOW CONTROLLER FOR ENHANCED OPERATING RANGE - A mass flow controller (MFC), a method for calibrating an MFC, and a method for operating an MFC are disclosed. The method for calibrating the MFC includes obtaining data relative to two signals from a thermal mass flow sensor when operating the mass flow controller at different flow rates with a calibration gas, and storing the data relating to the two signals in connection with corresponding flow-rate values. The method for operating the MFC includes obtaining data relative to the two signals from the thermal mass flow controller and accessing the calibration data to determine an unknown flow rate for a process gas that may be the same gas as the calibration gas or may be another gas that is different from the calibration gas.10-13-2011
20110132064FLOWMETERS AND METHODS FOR DIAGNOSIS OF SENSOR UNITS - A method and an apparatus for diagnosis of a flowmeter are disclosed. The method includes thermally coupling a first sensor unit of the flowmeter to a fluid and thermally coupling a second sensor unit of the flowmeter to the fluid. The method also includes actively heating or cooling the first sensor unit by applying power to the first sensor unit such that its temperature is different from the temperature of the fluid, and simultaneously actively heating or cooling the second sensor unit by applying power to the second sensor unit such that its temperature is different from the temperature of the fluid, and typically from the temperature of the first sensor. The method can include determining a temperature TM06-09-2011
20090301167WATER DETECTION DEVICE - An apparatus for indicating a volume of liquid flow, comprising a liquid sensor for sensing the presence of a liquid, a timer activated when the liquid sensor indicates the presence of a liquid, a calculator to calculate the volume of liquid flow dependent upon the time for which the timer is activated, and an indicator to provide an indication of the volume of fluid calculated by the calculation means12-10-2009
20080216555Method For Calibrating Ultrasound Clamp-On Flowmeters - A position difference is created by mutual translation of sound transducers and the associated time difference is measured. Radiating surfaces of both sound transducers are arranged acoustically opposing one another in planes that are parllel to one another. The sound transducers are positioned at a mutual distance x09-11-2008
20120036914Method Of Calibrating The Meter Of A Product Distribution Apparatus And Monitoring Method - A product distribution apparatus, shown in the form of an agricultural air seeder is disclosed having sensors to measure the mass flow through the distribution system, sensors to weigh the tank and the product therein, and sensors to measure the quantity of product in the tank. The sensors are used to measure the change in the quantity of product in the tank during a calibration process where the apparatus is operated over an area and the number of rotations of the meter are recorded. The data is then used to determine a mass flow rate per revolution of the meter. A monitoring method is also disclosed in which an ‘area to empty’ and ‘product needed’ to complete a field or task is displayed to the operator.02-16-2012
20120304731FLOW METER AND USE THEREOF FOR DETERMINING A FLOW OF A MEDIUM, AS WELL AS A METHOD THEREFOR - The invention relates to a flow meter for determining a flow of a medium. The flow meter comprises a flow tube for transporting the medium whose flow is to be measured. The flow tube has a supply end and a discharge end disposed downstream thereof. The flow meter is provided with a first flow sensor for measuring the flow of the medium at a first position of the flow tube. The flow meter is provided with a second flow sensor for measuring the flow of the medium at a second position of the flow tube.12-06-2012
20100175456MULTIPLE FLOW CONDUIT FLOW METER - A multiple flow conduit flow meter (07-15-2010
20090211331METHOD TO MEASURE FLOW LINE RETURN FLUID DENSITY AND FLOW RATE - Generally, the present invention is directed to the in situ measurement of fluid density and/or flow rate in tubular conduits, wherein such measurement comprises measuring dynamic fluid level and/or load (weight) in a region of the conduit and correlating these measurements of the fluid with a density and/or flow rate. Such measurements are typically directed toward drilling fluids transported within the tubular conduits—particularly the return flow, wherein the fluid comprises extraneous material (e.g., cuttings, etc.) which can alter the density and flow rate of the drilling fluid.08-27-2009
20100223976HIGH FLOW RATE PROVER AND METER FOR CUSTODY TRANSFER MEASUREMENT - A method includes introducing a tag into a fluid stream, the tag being suspended in the fluid stream. The tag is detected at a first end of a calibrated volume and a first detection signal is generated responsive thereto. The tag is detected at a second end of the calibrated volume and a second detection signal is generated responsive thereto. A flow parameter for the fluid stream is determined based the first and second detection signals and the calibrated volume.09-09-2010
20120186323APPARATUS AND METHOD FOR DETERMING DISPLACER POSITION IN A FLOWMETER PROVER - Apparatus and methods for proving a flowmeter. In one embodiment, a flowmeter prover includes a flow tube, a displacer, and a signal analyzer. The displacer is moveable in a flow passage of the flow tube. A magnetic target is disposed on the displacer. One or more inductive transducers are disposed on the flow tube and configured to detect the magnetic target as the displacer moves in the flow tube. The signal analyzer is configured to detect a maximum slope of rising and falling edges of a signal generated by the transducer responsive to the magnetic target traversing the transducer. The signal analyzer is further configured to determine displacer velocity based on the detected maximum slope.07-26-2012
20110120207METHOD AND DEVICE FOR CHARACTERIZING MAGNETORHEOLOGICAL FLUIDS - A method for characterizing magnetorheological fluids using a volume flow rate measurement. The volume flow of the magnetorheological fluid through a capillary is initially measured, with a constant weight force being applied onto the magnetorheological fluid. A magnetic field is then applied to the capillary, and the volume flow of the magnetorheological fluid through the capillary is measured with the magnetic field applied, with a second constant weight force being applied onto the magnetorheological fluid. A device for carrying out the method comprises a container for storing a magnetorheological fluid, wherein the container is connected on one side to a capillary through which the magnetorheological fluid can flow, and is closed on a different side by a movable piston, which presses the magnetorheological fluid through the capillary with a constant weight force, and means for generating a magnetic field are provided in the region of the capillary.05-26-2011
20110232358Surgical Cassette - A surgical system and cassette, the cassette having an identification method that is specific to the cassette. Suitable methods include bar coding or Radio Frequency Identification (“RFID”). Cassette information that may be encoded include features such as lot number and performance characteristics, such as pressure sensor calibration data, flow and pressure data and any other performance characteristics of the cassette captured during testing of the cassette at manufacture.09-29-2011
20130174635MASS FLOW CONTROLLER VERIFYING SYSTEM, VERIFYING METHOD AND VERIFYING PROGRAM - In a mass flow controller verifying system, there are provided a verifying gas line arranged in parallel to influent flow gas lines and joined into a post-confluent flow gas line, a reference volume calculating portion adapted to calculate a reference volume determined for a specified piping of a gas piping system, a verifying parameter calculating portion adapted to calculate a verifying parameter based on time series data of a measurement pressure measured by a pressure measurement unit during a control of a flow rate by a mass flow controller to be verified, and a comparing portion adapted to compare a reference parameter set based on the reference volume and the verifying parameter, whereby the verifying system can be introduced into an existing gas piping system used in a semiconductor manufacturing process and so forth at a low cost and is capable of verifying a mass flow controller quickly and accurately.07-11-2013
20110265549METHODS AND APPARATUS FOR CALIBRATING FLOW CONTROLLERS IN SUBSTRATE PROCESSING SYSTEMS - Methods and apparatus for calibrating a plurality of gas flows in a substrate processing system are provided herein. In some embodiments, a substrate processing system may include a cluster tool comprising a first process chamber and a second process chamber coupled to a central vacuum transfer chamber; a first flow controller to provide a process gas to the first process chamber; a second flow controller to provide the process gas to the second process chamber; a mass flow verifier to verify a flow rate from each of the first and second flow controllers; a first conduit to selectively couple the first flow controller to the mass flow verifier; and a second conduit to selectively couple the second flow controller to the mass flow verifier.11-03-2011
20130145816Calibration Procedure Considering Gas Solubility - A method of calibrating a flow meter is provided. The method initiates with identifying a calibration fluid for a processing fluid. The calibration fluid has physical properties in common with the processing fluid with the exception of an outgassing characteristic. The method includes adding the calibration fluid to a vessel, where the vessel is in fluid communication with the flow meter and a withdrawal unit. The vessel is pressurized and the calibration fluid is withdrawn from the vessel through the flow meter and into the withdrawal unit, where the withdrawing performed by the withdrawal unit. A withdrawal volume per unit time measured by the flow meter is compared to a withdrawal volume per unit time controlled and set through the withdrawal unit.06-13-2013
20130145817Torsional flow sensor - A flow sensor with h no moving parts and which is suitable for miniaturization into a probe for fluid measurements in remote, hostile environments. It comprises an isolation torque tube to isolate a high pressure media from an instrument environment. and a highly sensitive disc torque sensor to measure the values of torque generated by flow across a static impeller. A proportionalized electric property signal is transmitted to a value reading station.06-13-2013
20100307219METHOD TO CALIBRATE A FLOW BALANCE VALVE ON A WINDROWER DRAPER HEADER - A simplified method for calibrating a variable-displacement hydraulic PTO system on an agricultural windrower when powering a header wherein the variable-displacement pump is operated at maximum flow capacity while the engine is operated at a pre-determined speed and a flow balance valve is adjusted to achieved a pre-determined cutterbar speed. Operation of the cutterbar at the pre-determined speed allows sufficient hydraulic fluid flow through the remaining parallel fluid circuit to power the remaining equipment, typically a reel, on the header. Controls for managing pump displacement and engine speed as well as indication of cutterbar speed are typically available on the windrower tractor thereby eliminating the need for additional diagnostic equipment and making the method suitable for use in the field.12-09-2010
20120272710METHOD AND A DEVICE FOR REAL TIME MONITORING OF A SYSTEM FOR MEASURING A FUEL FLOW RATE - A device and method of monitoring the measurement of a fuel flow rate fed to an airplane engine includes delivering the measurement from a mass flowmeter. The monitoring also includes evaluating whether at least the following conditions are satisfied: a signal delivered by the flowmeter is less than a given value; and the engine is running on its own. The measurement is invalidated if these conditions are satisfied simultaneously.11-01-2012
073100170 Plug with leak detector 2
20090044595METHOD AND APPARATUS TO DETECT AND LOCATE ROOF LEAKS - A leak in a membrane on top of a horizontal roof deck is located by applying conductive wires on the membrane underneath the aggregate in a grid pattern. A measuring and switching circuit generates voltage having a positive attached to the roof deck and a negative attached to the wires. The circuit has a relay for each wire which can be switched between a current sensor system and the negative potential. The sensor system is arranged to sense at each of the wires in turn the current flowing from the roof deck through any leak in the membrane to the wire. A microprocessor operates the relays in turn to connect all the other wires to the negative as a shield while each wire is sensed. From the output of the grid the changes in current in the x and y directions are analyzed to locate the leak in the membrane.02-19-2009
20120031162METHOD FOR FUNCTIONALLY TESTING A LEAK DETECTOR - In order to functionally test a leak detector (02-09-2012
073100180 Sphere 1
20090293582METHOD AND APPARATUS FOR A BIDIRECTIONAL METER PROVING SYSTEM - A bidirectional sphere prover is used to check the accuracy of a custody transfer meter when fluids, such as crude oil or gasoline are bought and sold. The bidirectional sphere prover of the present invention uses a straight calibrated section of pipe between the detection switches, the straight calibrated section of pipe being free of welds, flanges and elbows.12-03-2009
073100190 Piston 8
20120216595FRAMEWORK ENVELOPING A PROVER - A prover mounted upon a supporting lower framework includes a piston supporting rod extending longitudinally through a cylinder. Motive means supported on a frame mounted on the prover draws the rod toward the fluid receiving end of the cylinder. An upper framework is attached to the lower framework through a plurality of stanchions. Various I-beams formed as part of the upper framework enhance rigidity to the combination of lower framework and upper framework. The combination of lower framework and upper framework provides support for the prover in a horizontal or a vertical orientation without affecting the operation, repair or maintenance of the prover.08-30-2012
20090019914Flowmeter Calibration System and Operational Method - Disclosed is a bi-directional piston displacement type volumetric fluid flow rate delivery and metering system (calibration standard) and operational method for calibration of fluid flowmeters. The present invention provides reduced uncertainty of delivered volumetric fluid flow rate at meters under test relative to the uncertainty of volumetric fluid flow rate at meters under test provided by prior art bi-directional piston displacement type volumetric fluid flow rate standards given the same nominal cylinder diameters and working fluid and equal dimensional, timing and temperature measurement uncertainties by employing a plurality of metering pistons and cylinders to minimize the connecting volume piping between the metering piston cylinder outlet and meters under test, providing open access to one side of each metering piston to accomplish installation of temperature probes through the pistons into the working fluid and by operational method which minimizes the connecting volume to standard volume ratio.01-22-2009
20090178461UNIDIRECTIONAL CAPTIVE DISPLACEMENT PROVER - A prover includes a piston supporting rod extending longitudinally through a cylinder, which cylinder receives and discharges a fluid to measure the flow rate of the fluid by translation of the piston from the fluid receiving end to the fluid discharging end. Motive means includes at least one reel mounted belt for drawing the rod toward the fluid receiving end of the cylinder. Upon such movement of the rod, a poppet valve formed as part of the piston opens to permit fluid flow through the piston. A clutch serving as part of the motive means permits travel of the piston from the fluid receiving end to the fluid discharging end of the cylinder and serve the flow rate measuring function of the prover. Apparatus is also provided to permit opening of the poppet valve for maintenance and/or repair purposes. A framework permits support of the prover in a horizontal or a vertical orientation without affecting the operation, repair or maintenance of the prover.07-16-2009
20120024037COMPACT PROVERS - A compact prover assembly (02-02-2012
20100116019FRAMEWORK FOR A PROVER - A prover mounted upon a supporting lower framework includes a piston supporting rod extending longitudinally through a cylinder, which cylinder receives and discharges a fluid to measure the flow rate of the fluid by translation of the piston from the fluid receiving end to the fluid discharging end. Motive means supported on a frame mounted on the lower framework draws the rod toward the fluid receiving end of the cylinder. Upon such movement of the rod, a poppet valve formed as part of the piston opens to permit fluid flow through the piston. A clutch serving as part of the motive means permits travel of the piston from the fluid receiving end to the fluid discharging end of the cylinder and serve the flow rate measuring function of the prover. An upper framework is attached to the lower framework through a plurality of stanchions. Various I-beams formed as part of the upper framework enhance rigidity to the combination of lower framework and upper framework. The combination of lower framework and upper framework provides support for the prover in a horizontal or a vertical orientation without affecting the operation, repair or maintenance of the prover.05-13-2010
20130091923PISTON PROVER - A piston prover comprises a measurement cylinder; a hydraulic cylinder coupled with a downstream end of the measurement cylinder; a measuring piston that moves a predetermined distance through the measurement cylinder during a measurement due to a fluid flow to eject a reference volume of fluid; and a piston rod that is movably in the hydraulic cylinder, wherein the measuring piston and the piston rod are separately constructed, When returning the measuring piston to a predetermined upstream measurement standby position, the piston rod moves the measuring piston to set the measuring piston at the predetermined measurement standby position, and thereafter only the piston rod is moved from upstream to downstream and is accommodated in the hydraulic cylinder.04-18-2013
073100220 With magnetic or optical sensor 2
20090044596FLOW CALIBRATOR - A piston-and-cylinder gas flow calibrator (prover) having piston and cylinder elements with interface surfaces made of glass, quartz, or alumina. The piston and cylinder are made of the same material so as to have the same coefficient of thermal expansion. In one embodiment, the surface of the piston is ground, while the facing surface of the cylinder is unground. Also, disclosed are movement detectors for detecting movement of the piston in the cylinder.02-19-2009
20120260717SMALL VOLUME PROVER APPARATUS AND METHOD FOR PROVIDING VARIABLE VOLUME CALIBRATION - A small volume prover (SVP) apparatus and method for providing variable volume calibration. The apparatus includes a precision bore cylinder and a piston configured with a valve arrangement in order to permit fluid to pass through an annular passage when the piston is traveling from one position to an opposite position. A position sensor and a pair of optical slot detectors can be integrated in association with the piston for continuously sensing an accurate position and stroke of the piston. The position sensor verifies the optical slot detectors at every run and provides calibration of flexible volumes as the fluid travels via the annular passage. The position sensor also checks the correct return of the piston after the flow stroke and detects the stuck mechanics. Such small volume prover apparatus associated with the position sensor can be employed for precise and fast position sensing of the piston and variable volume calibration of a fluid flow sensor.10-18-2012
073100240 Tracer 2
20130219986METHOD AND APPARATUS FOR CALIBRATING A FLOW METER - In the method for calibrating a flow meter, at least two acoustic sensors are arranged at a distance to each other on a straight measuring portion, and a tracer is fed into the fluid flowing in the process pipe at a set mixing distance from the first measuring point. The momentary reference value of the flow velocity of the flowing fluid is measured by determining the travel time of the acoustic tracer between at least two sensors on the same straight measuring portion, by using the acoustic sensors to detect the relative content response of the tracer. This measured value can be compared with the value displayed by the flow meter. The mixing distance of the tracer is arranged to be at least long enough for the tracer to have effectively mixed at the first measuring point over the entire cross-section of the flow path of the fluid.08-29-2013
20130008225SYSTEM FOR MEASURING FLUID FLOW VELOCITY - The invention relates to a system (01-10-2013
073100250 Orifice or restriction 2
20120118037Device for Checking a Flow Pressure Measurement Probe, and Probe Comprising the Device - A device is provided for checking a flow pressure measurement probe as well as a probe comprising the device. The probe includes an internal volume and at least one orifice for communication with the outside of the volume. The device includes: an acoustic transmitter and an acoustic receiver that are intended to be connected to the internal volume so that the transmitter transmits an acoustic signal that propagates in the internal volume and so that the receiver picks up an observed acoustic signal; and, means for comparing the observed signal with a reference signal. The device may be a stand-alone device or may be integrated into the probe.05-17-2012
20090090164METHOD FOR VOLUMETRICALLY CALIBRATING A LIQUID FLOW CONTROLLER WHILE MAINTAINING THE LIQUID IN A CLOSED SYSTEM - Methods and apparatus for determining if it is necessary to calibrate a liquid flow controller which is contained in a liquid distribution system, where the liquid distribution system supplies a fluid to a semiconductor processing tool. The determination is made while maintaining system as closed, such that fluid does not need to be removed from the liquid distribution system.04-09-2009
073100270 Turbine, geared meter, pulse activated, or counter 1
073100280 Turbine or geared meter 1
20120096920APPARATUS AND METHOD FOR TURBINE FLOW METER SENSOR ADJUSTMENT - A method and apparatus for calibrating a turbine flow meter via adjustment of electromagnetic sensor position are disclosed herein. In one embodiment, a turbine flow meter includes a flow tube, a plurality of electromagnetic pickups, and a locator plate. The electromagnetic pickups are configured to detect rotation a flow indicator in the flow tube. The pickups are secured to the locator plate. The locator plate is configured to adjustably position the pickups relative to the flow tube.04-26-2012
073100290 Anemometer or pitot tube 4
20110283766Apparatus and Calibration Method for Cup Anemometers having Non-Removable Cupsets - An apparatus and method is disclosed for calibrating a cup anemometer having a non-removable cupset. The calibration method may include mechanically connecting a cups assembly hub of the anemometer to a rotatable shaft of a variable-speed motor, placing at least the anemometer under vacuum so that drag effects on the cups assembly hub of the anemometer are eliminated when driven by the variable-speed motor, controlling the variable-speed motor to drive the cups assembly hub of the anemometer at a number of different rotational speeds, recording electrical signals produced by the anemometer at each of the number of different rotational speeds, and generating calibration data for the anemometer based on the recorded electrical signals and on expected wind speed values at each of the number of different rotational speeds.11-24-2011
20100162787QUICK TEST TOOL AND METHOD OF AIRCRAFT AIRSPEED INDICATOR - Provided is a test tool for an airspeed indicator of an aircraft, including: a cylinder portion including an insertion groove with a predetermined amount of space, and of which one end is sealed by a cover and includes an injection portion on the cover so that the insertion groove passes through a pitot tube, and of which another open end includes a protruded step around its inner circumferential surface; a piston portion being inserted into the insertion groove to reciprocally move within the insertion groove, and including a protrusion portion having a size and a shape corresponding to an aperture of the insertion groove, and a bar-shaped knob portion being extended from the protrusion portion; and a display portion being formed of a transparent material on an outer surface of the cylinder portion to display a location of the protrusion portion reciprocally moving within the cylinder portion.07-01-2010
20080307853ANEMOMETER CALIBRATION METHOD AND WIND TURBINE - A method for re-calibrating an anemometer of a wind turbine is provided, the method comprising the steps of obtaining pairs of measured values of wind speed and a wind-speed dependent turbine variable; comparing said measured value pairs to pairs of wind speed and the turbine variable obtained from an expected turbine variable curve of the wind turbine to determine a difference between a measured wind speed value and an expected wind speed value for a given turbine variable value; and adjusting a calibration function of said anemometer on the basis of said determined difference.12-18-2008
20110079072WIND SENSOR - A wind sensor includes first and second elements in an orthogonal axis arrangement and a calibration data array comprising first calibration data associated with the first element and second calibration array data associated with second element. An anemometric processor determines a wind speed (S) and direction (W) for an airflow received by the first and second elements using a first electrical parameter associated with the first element and the first calibration array data and a second electrical parameter associated with the second element and the second calibration array data. A wind sensing probe can have a pair of wind sensing elements, wherein each element has a core formed of a low specific heat, low density, high temperature plastic polymer, with two metal leads extending from the ends of core. A wind sensing element can include a fine Nickel alloy coil wound around an aforementioned core.04-07-2011
073100310 With liquid level monitor or timer 3
20090007625SYSTEM AND METHOD FOR FIELD CALIBRATION OF FLOW METERS - A calibration system for a flow meter includes a flow simulator, the flow simulator including a receiver configured to receive flow meter transducer signals from a flow meter. A simulation subsystem is configured to create simulated transit time signal pulses, and to transmit the simulated transit time signal pulses to the flow meter at preselected time intervals. A calibration subsystem is configured to receive from the flow meter a transit time differential value generated by the flow meter based on the simulated transit time signal pulses and output a calibration factor to the flow meter.01-08-2009
20090188298LIQUID PROVING SYSTEM - A liquid proving system is provided with a bottom drain liquid prover draining into a holding tank. The fill opening of the prover has a prover fill opening self sealing assembly that remains closed except when a nozzle used to pump liquid into the prover is pushed through the opening of the prover fill opening self sealing assembly. The prover fill opening self sealing assembly may comprise a nozzle sealing gasket and a nozzle removed self seal assembly. There is a vapor conduit connecting the interior of the prover in the region of the fill opening and the interior of the holding tank to form a saturated vapor environment in the prover and holding tank from the vapors emitted from liquid in the holing tank. When liquid is pumped into the prover evaporation of the liquid being pumped into the prover, and release of vapors from the prover, is inhibited due to the saturated vapor environment in the prover, which results in a more accurate prover measurement of liquid pumped into the prover.07-30-2009
20130199262SELF CALIBRATING FUEL DISPENSING METHOD AND SYSTEM - Fluid level measurements for the shared tank and outflow information provided by calibrated flow meters corresponding to dispensing stations connected to the shared tank may be used to derive a filled volume model for the tank as a function of fluid level. Subsequently, a filled volume change for a shared tank over a selected time interval may be determined from pre-change and post-change fluid level measurements. The change in filled volume may be compared with the total fluid flow over the selected time interval as indicated by the flow meters of active dispensing stations. If the filled volume change for the tank is substantially different than the total fluid flow indicated by the flow meters, the flow meters may be collectively adjusted to provide a more accurate indication of the filled volume change in the shared tank.08-08-2013
073100330 With floating element or weighing 1
20080202197Gas Flowmeter Calibration Stand - A gas flow stand (08-28-2008
073100340 With signal processing, span or set point adjustment (e.g., zero correction) 8
20120210768Calibration Tube for Multiphase Flowmeters - A device for automated calibration of a multiphase flowmeter comprising a tube for trapping a multiphase sample along with three ultrasound (US) transducers is described herein. The calibration device is placed vertically, using two valves the tube traps a sample of the liquid in the tube. Then, once the three phases of the liquid separate, the ultrasound transmitters are used to determine the phase fractions of each phase.08-23-2012
20090056410Self diagnostic measurement method to detect microbridge null drift and performance - A self-diagnostic measurement method to detect microbridge null drift and performance. An ASIC can be designed to include a self-diagnostic feature that automatically occurs at start up or upon command in Normal Operation whereby the temperature compensated microbridge null can be measured in a state of very low thermal energy and allows for the tracking of microbridge null stability versus time. An Airflow Combi-Sensor ASIC (Heimdal) with its strategic partner ZMD can be developed and can be implemented in the form of a self-diagnostic feature that occurs when power is first applied to the ASIC or upon command. When the self-diagnostic is initiated, power is removed and after the electronics have settled, a small power can be applied to the microbridge to measure the bridge null with reduced sensitivity to flow due to self-heating.03-05-2009
20080295568SYSTEM AND METHOD FOR AUTOMATED CALIBRATION OF A FUEL FLOW METER IN A FUEL DISPENSER - Methods, systems, and computer program products for using a reference meter to provide automated calibration for a fuel dispenser are disclosed. According to one method, first historical metering data associated with a fuel flow meter and second historical metering data associated with a reference meter are maintained within a memory. The first historical metering data is compared with the second historical metering data. It is determined whether a difference exists between the first historical metering data and the second historical metering data that can be corrected by calibration of the fuel flow meter. In response to determining that a difference exists between the first historical metering data and the second historical metering data that can be corrected by calibration of the fuel flow meter, an automated calibration of the fuel flow meter is performed.12-04-2008
20120055229METHOD AND APPARATUS FOR DETERMINING A FLOW RATE ERROR IN A VIBRATING FLOW METER - A method for determining an error in a flow rate of a fluid flowing through a vibrating flow meter is provided. The method includes the step of receiving sensor signals from the vibrating flow meter. A first flow rate is determined using the sensor signals. A fluid density is determined. A fluid velocity is determined using the first flow rate, the fluid density, and a physical property of the flow meter. A flow parameter, V/p is calculated based on the fluid velocity and the density. A flow rate error is then determined based on the calculated flow parameter.03-08-2012
20100043521METER PROVING METHOD AND SYSTEM - A meter proving method and system. At lease some of the illustrative embodiments are methods comprising establishing a prover time by a prover device, measuring a flow rate of a fluid with a flow meter that uses multiple measurements taken over a period of time to produce each individual flow rate value (the flow meter electrically coupled to the prover device), and generating a meter volume over the prover time based on the flow rate. The generating the meter volume based on the flow rate does not involve: generating a pulse train output signal by the flow meter; and generating the meter volume based on an attribute of the pulse train.02-25-2010
20100071438METHOD AND APPARATUS FOR CALIBRATING MASS FLOW CONTROLLERS - A method for determining the flow rate of a gas includes measuring a first concentration of a calibration gas provided to the process chamber at a first pressure and temperature by directing infrared radiation into the process chamber and monitoring a first amount of infrared radiation absorbed by the calibration gas. A mixture of a second gas and the calibration gas is provided to the process chamber while maintaining the first pressure and temperature. A second concentration of the calibration gas in the mixture is measured by directing infrared radiation into the process chamber and monitoring a second amount of infrared radiation absorbed by the calibration gas. A flow rate of the second gas is calculated by comparing the first and second concentrations of the calibration gas. In one embodiment, the calibration gas and the second gas may not absorb the infrared radiation at the same wavelength.03-25-2010
20110259077CORIOLIS FLOWMETER WITH ZERO CHECKING FEATURE - Descriptions are provided for implementing flowmeter zero checking techniques. In operating a flowmeter, it may be the case that, even if previously calibrated, the flowmeter will produce erroneous measurements, e.g., will indicate a non-zero flow during a period of zero flow. Therefore, zero checking features are provided that allow for fast and accurate determinations of the zero-flow values, for use in adjusting later measurements. The zero-checking features include a button attached to an exterior of a flowmeter, so that it is easily accessible to an operator of the flowmeter. The button, in conjunction with an internal zero checking system, allows for a display of a zero value in response to a request from the operator of the flowmeter.10-27-2011
20100307220FLOWMETER CALIBRATION TECHNIQUES - Descriptions are provided for implementing flowmeter zeroing techniques. In operating a flowmeter, it may be the case that, if not properly calibrated, the flowmeter will produce erroneous measurements, e.g., will indicate a non-zero flow during a period of zero flow. By determining a magnitude of such erroneous measurements, calibration values may be determined, which may later be used to adjust a measurement that is output by the flowmeter and thereby improve an accuracy of the flowmeter. Such calibration values may be determined for a plurality of operational conditions associated with the flowmeter, such as densities of materials being measured, and/or configurations of flow elements associated with transporting material to the flowmeter. Then, the calibration values may be correlated with the relevant operational conditions, and stored for later use. In this way, during an actual operation of the flowmeter, a number of calibration values may be made available, and an optimal calibration value may be selected for an existing operational condition of the flowmeter.12-09-2010
073100350 With pressure measurement or plural flowmeters 8
20100162788Calibration of Dust Load Flow Measuring Systems - A method for calibrating a dust load flow measuring system is provided. The dust delivery line may be connected from a metering vessel to a calibration line leading to the input sluice in the delivery direction downstream of the installed dust load flow measuring device instead of to the gasification reactor. The input sluice is provided with a weighing unit such that the weight of the content of the input sluice is determined. A differential pressure that may be set is controlled between the metering vessel and the input sluice, the dust load flow is determined in a time interval.07-01-2010
20120180547FLOW MEASUREMENT DEVICES HAVING CONSTANT RELATIVE GEOMETRIES - Systems and methods are disclosed for differential pressure meters having a constant beta edge boundary defined by fluid displacement members of the meter. In some embodiments, a differential pressure meter may have an interchangeable fluid displacement member, such that each fluid displacement member replaced in the meter maintains a constant beta edge boundary. In other embodiments, a family of differential pressure meters having permanent fluid displacement members may maintain a constant beta edge boundary for each meter of the family of differential pressure meters.07-19-2012
20090113985FLUID FLOW MEASURING AND PROPORTIONAL FLUID FLOW CONTROL DEVICE - Embodiments disclosed herein provide restrictive-flow flow measurement devices, valve improvements and signal control devices and processes that control the flow of liquids, including control processes for single-liquid calibration. In some embodiments, a fluid flow device can be calibrated using a single standard calibration fluid. The fluid flow of a first fluid through a flow meter is measured by calculating a first pressure difference between pressures sensed by two pressure sensors of the flow meter. The fluid flow of a second fluid through the flow meter is measured by calculating a second pressure difference between pressures sensed by the same two pressure sensors. A calibration coefficient is determined based upon the relationship between the flow rate, the fluid density and the calculated pressure difference for the first and second fluids. A relationship between the calibration coefficient and the kinematic viscosity of each fluid is then determined and stored.05-07-2009
20090183548METHOD AND APPARATUS FOR IN SITU TESTING OF GAS FLOW CONTROLLERS - Methods and apparatus utilize a rate of drop in pressure upstream of a gas flow controller (GFC) to accurately measure a rate of flow through the GFC. Measurement of the gas flow through the many gas flow controllers in production use today is enabled, without requiring any special or sophisticated pressure regulators or other special components. Various provisions ensure that none of the changes in pressure that occur during or after the measurement perturb the constant flow of gas through the GFC under test.07-23-2009
20090183549METHOD AND APPARATUS FOR IN SITU TESTING OF GAS FLOW CONTROLLERS - Methods and apparatus utilize a rate of drop in pressure upstream of a gas flow controller (GFC) to accurately measure a rate of flow through the GFC. Measurement of the gas flow through the many gas flow controllers in production use today is enabled, without requiring any special or sophisticated pressure regulators or other special components. Various provisions ensure that none of the changes in pressure that occur during or after the measurement perturb the constant flow of gas through the GFC under test.07-23-2009
20100218586METHODS AND DEVICES FOR DETERMINATION OF FLOW RESERVOIR VOLUME - A novel enhanced flow metering device is adapted for disposing into a flow material reservoir a known volume of flow material whereby software used in conjunction with a pressure sensor may be calibrated. Additionally, by measuring the known amount of flow material returning to the flow material reservoir, checks are quickly made to ensure the pressure sensor is behaving as expected.09-02-2010
20120204620DETERMINING DELAY TIMES FOR ULTRASONIC FLOW METERS - A system and method for calibrating an ultrasonic flow meter. In one embodiment, a method includes disposing a fluid circulating device within a flow meter. Fluid is circulated in the flow meter by operation of the fluid circulating device. An acoustic signal transit time within the flow meter is measured during the circulating. Based on the measuring, a portion of the acoustic signal transit time caused by latency induced by components of the flow meter is determined.08-16-2012
20080302169METHOD FOR DETECTING CORROSION, EROSION OR PRODUCT BUILDUP ON VIBRATING ELEMENT DENSITOMETERS AND CORIOLIS FLOWMETERS AND CALIBRATION VALIDATION - A method and apparatus for validating the flow calibration factor of a Coriolis flowmeter. In accordance with a first embodiment, an improved material density is obtained by measuring material density when the temperature of the material is equal to a predetermined reference temperature. In accordance with a second embodiment, a preprogrammed data base stores density/temperature relationships. Improved density information is obtained by measuring the density and temperature of the material, applying the measured density/temperature information from the data base, and obtaining density information compensated for a predetermined reference temperature. The improved density information obtained for both embodiments is unaffected by temperature changes and is used to validate the flow calibration factor. The flow calibration factor compensation for pressure changes and changes in material composition is obtained in a similar manner.12-11-2008
073100360 Metering dispenser 5
20090165529TOOL FOR CALIBRATING GRANULAR DISPENSERS AND METHOD INCORPORATING THE SAME - A tool is provided that is adapted to calibrate a dispenser operative to dispense a selected granular material received from the interior of a receptacle. The tool may include a handle extending longitudinally from a first handle end to a second handle end along a longitudinal axis and a positioning element located proximately to the second handle end. The positioning element is adapted to locate the flow control member associated with the dispenser at a selected position thereby to set a desired delivery rate of the granular material. The positioning element may be formed as an elongate projection extending upwardly from a location proximate to the second handle end or as a flat blade. A set of tools is also provided such that the dispenser can be set at alternative desired delivery rates. A method of calibrating the delivery rate of a dispenser is also provided.07-02-2009
20090139300AUTO-CALIBRATING METERING SYSTEM AND METHOD OF USE - A method of auto-calibrating a meter is provided herein. The method can include disposing a sensor within a sensor dispenser associated with a tag element wherein the tag element is configured to store a plurality of sensor-specific information as well as communicate the information to a meter. Next, the method can include placing the sensor dispenser into communication with a meter which is configured to receive and retain a sensor from the sensor dispenser, and also configured to receive the sensor-specific information from the tag element thereby allowing the meter to perform an auto-calibration procedure which is at least partially dependent upon the sensor-specific information. Similarly, a system for auto-calibrating a meter is also provided herein. Additionally, various embodiments of a meter and various embodiments a sensor dispenser are also provided herein.06-04-2009
20120137750Vapor Retention Apparatus and Method for Liquid Volumetric Test Measure - Volatile liquid vapors formed during the pour of the volatile liquid from a volumetric test measure apparatus are contained in a pour containment apparatus that enhances the rate of vapor formation inside the pour containment apparatus. The interface between a flow control component on the test measure apparatus and a pour inlet on the pour vapor-containment apparatus creates a positive pressure, vapor-saturated environment so that a sufficient positive vapor pressure is maintained between the interior of the test measure apparatus and the pour vapor-containment apparatus when the flow control component is inserted in the pour inlet and the test measure apparatus is rotated about vertical during the pour and drain processes so that the vapor-saturated air formed in the pour vapor-containment vessel transfers during the pour into the interior of the test measure apparatus to replace the liquid that is poured out of the test measure apparatus.06-07-2012
20110094287SYSTEM AND METHOD FOR AUTOMATED CALIBRATION OF A FUEL FLOW METER IN A FUEL DISPENSER - Methods, systems, and computer program products for using a reference meter to provide automated calibration for a fuel dispenser are disclosed. According to one method, first historical metering data associated with a fuel flow meter and second historical metering data associated with a reference meter are maintained within a memory. The first historical metering data is compared with the second historical metering data. It is determined whether a difference exists between the first historical metering data and the second historical metering data that can be corrected by calibration of the fuel flow meter. In response to determining that a difference exists between the first historical metering data and the second historical metering data that can be corrected by calibration of the fuel flow meter, an automated calibration of the fuel flow meter is performed.04-28-2011
20120240658METHOD AND APPARATUS FOR CALIBRATING DISPENSED DEPOSITS - A method of calibrating a dispenser of the type having an actuator that is movable over a variable stroke distance includes dispensing a quantity of viscous material from the dispenser by moving the actuator over one of a plurality of stroke distances, weighing the quantity of viscous material, repeating the acts of dispensing and weighing for each of the plurality of stroke distances, and displaying the weight of each of the dispensed quantities to a user using a user interface device.09-27-2012

Patent applications in class Volume of flow, speed of flow, volume rate of flow, or mass rate of flow

Patent applications in all subclasses Volume of flow, speed of flow, volume rate of flow, or mass rate of flow