Volume Of Flow, Speed Of Flow, Volume Rate Of Flow, Or Mass Rate Of Flow Patents (Class 73/1.16)
  • Patent number: 11112294
    Abstract: A multiphase flow calibration semi-closed loop system includes an oil-gas-water separation unit, a multiphase flow calibration unit, a single phase flow calibration section, a gas flow section, a flow data acquisition unit, and a programmable logic controller (PLC). The system is designed to have a two-step calibration process. In a first step, single phase water flow meters and single phase oil flow meters of the system are calibrated independently. In a second step, multiphase flow meters or multiphase water cut meters are calibrated using the pre-calibrated water flow meter, pre-calibrated oil flow meter, and the pre-calibrated gas flow meter. In doing so, the oil-gas-water separation unit, the multiphase flow calibration unit, the single phase flow calibration section, and the gas flow section communicate with the flow data acquisition unit providing real time data. Thus, the PLC connected to the flow data acquisition unit can perform the required calibration processes.
    Type: Grant
    Filed: October 4, 2019
    Date of Patent: September 7, 2021
    Inventors: Aftab Ahmad, Luai M. Alhems
  • Patent number: 11099043
    Abstract: A method of determining a corrected measured flow rate is provided. The method includes measuring a flow rate with a first flow meter, measuring a flow rate with a second flow meter, the second flow meter being fluidly coupled to the first flow meter in series, and correcting the measured flow rate of the first flow meter with the measured flow rate of the second flow meter.
    Type: Grant
    Filed: February 26, 2016
    Date of Patent: August 24, 2021
    Assignee: Micro Motion, Inc.
    Inventors: Richard L. Maginnis, Dean M. Standiford
  • Patent number: 11079404
    Abstract: A test fixture for determining calibration accuracy of an aircraft angle of attack sensor vane includes an outer disc, configured to be transiently fixed to an aircraft exterior portion surrounding the sensor vane, and an inner disc that includes a spring-loaded plunger configured to physically engage the sensor vane during tests. The inner disc is rotatable relative to the outer disc to accommodate rotation of the sensor vane when engaged with the inner disc. The outer disc includes a ring gear fixed thereto; the inner disc includes a manually operated knob containing a spur gear that reacts with the ring gear to rotate the inner disc when the knob is rotated. The outer disc is a clamshell structure formed of an upper annular disc and a lower annular disc rigidly secured together, and the inner disc is rotatably retained between the upper and lower annular discs.
    Type: Grant
    Filed: May 23, 2019
    Date of Patent: August 3, 2021
    Assignee: The Boeing Company
    Inventors: Charley Shin, Bally Bang
  • Patent number: 10921174
    Abstract: One aspect of the present disclosure includes a transfer standard apparatus for in situ calibration of measuring devices including a manifold having a first header in fluid communication with a second header via two or more flow lines, the first header and the second header each having ports at each end structured to accept external flow lines, two or more flow meters, each disposed in one of the flow lines such that the flow meters are connected in parallel relative to the first header and second header, and valves disposed in the flow lines adjacent the first header and the second header and operable to selectively isolate each flow meter from the first header and the second header. The transfer standard apparatus may include a mobile platform on which the manifold is mounted, including access to the ports of the first header and second header.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: February 16, 2021
    Assignee: Endress+Hauser Group Services AG
    Inventors: Brian Hoover, Christopher Brent Miller, Ron Onwezen
  • Patent number: 10900819
    Abstract: An ultrasonic flow meter includes a flow tube, and first and second ultrasound transducers that transmit ultrasonic pulses through a liquid flowing through the tube. The flow tube includes a reflector assembly that reflects pulses from the first transducer to the second transducer, and from the second transducer to the first transducer, thereby facilitating different sequences of time-of-flight measurements. A microcontroller obtains multiple sequences of measurements, where all the measurements in a single sequence are of the same measurement type, and each sequence uses a different type of measurement than that used by the other sequences. The microcontroller filters out the longest and shortest time-of-flights and, using an average of the remaining time-of-flights, calculates a volumetric flow rate of the fluid.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: January 26, 2021
    Assignee: AXIOMA Metering, UAB
    Inventors: Virgilijus Pamakstis, Rimas Wolyniec, Gintautas Lengvinas, Vainius Repsys, Arminas Ragauskas
  • Patent number: 10863666
    Abstract: A method and system for calibrating the feed rate of a metering device for airflow-borne feeding of granular material in an agricultural implement. The method of calibrating the feed rate of the metering device comprises a first volumetric feeder with a first metering rotor arranged to feed granular material to an airflow channel.
    Type: Grant
    Filed: May 12, 2017
    Date of Patent: December 15, 2020
    Assignee: Väderstad Holding AB
    Inventor: Crister Stark
  • Patent number: 10794869
    Abstract: The present invention discloses an acoustic emission sensor, including an acoustic emission probe, a probe installation mechanism, and a transmission mechanism transmitting a combination of the acoustic emission probe and the probe installation mechanism to a setting position in a borehole of a monitored rock mass; the probe installation mechanism includes a shell, a probe sleeve, a spring sleeve, a spring, and a fixed pulley component; the probe sleeve is installed in the guide cylinder of the shell, the spring sleeve is fixed on two sides of the probe sleeve, the spring is installed inside the spring sleeve; one end of the first rope in the fixed pulley component is fixedly connected to the end cap in the upper end surface of the probe sleeve through the fixed pulley mounted on the top of the inner wall of the shell.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: October 6, 2020
    Inventors: Jianfeng Liu, Huining Xu, Jianliang Pei, Lu Wang, Chunping Wang, Xiaozhang Lei, Wenxi Fu, Jianhui Deng
  • Patent number: 10575828
    Abstract: The present invention relates to an ultrasound calibration device comprising a body portion having at least one echogenic fiducial; a marker portion having at least one tracking marker which can be detected by a medical tracking system; and a hook-shaped mounting portion extending from the body portion. The present invention also relates to a method for calibrating an ultrasound probe, comprising the steps of filling a container with a fluid, in particular a physiologic salt solution; placing an ultrasound calibration device in accordance with the invention into the container; comparing, with the aid of a medical navigation system, a calculated position of at least one fiducial with a determined position of the at least one fiducial which is determined using a tracked ultrasound probe.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: March 3, 2020
    Assignee: Brainlab AG
    Inventors: Edward Dunlap, Uli Mezger, Jerome Vuillemin
  • Patent number: 10557745
    Abstract: An electromagnetic flow meter includes a flowtube including a coil disposed in the vicinity of a measurement tube, and electrodes disposed on the measurement tube, a converter including an excitation unit configured to generate an excitation signal and output the excitation signal to the coil through an excitation cable, and a detection signal receiving unit configured to receive a detection signal from the electrodes through a signal cable, and generate a flow rate signal, and a miswiring detection unit configured to perform miswiring diagnosis on the excitation cable or the signal cable on the basis of a difference between a change amount of the flow rate signal when the excitation signal is being output and a change amount of the flow rate signal when the excitation signal is not being output.
    Type: Grant
    Filed: May 31, 2017
    Date of Patent: February 11, 2020
    Assignee: Yokogawa Electric Corporation
    Inventor: Toru Shimura
  • Patent number: 10519887
    Abstract: The present invention is one in which an off board Mass Air Flow (MAF) sensor is used to diagnose the internal combustion engine. The MAF sensor is connected to the air induction system of the engine. The sensor is then powered from the vehicles battery. The MAF sensor is designed for lower air flow rates produced from the engine such as; crank, idle, and light load. The sensor creates an output voltage that is proportional to the volumetric air flow of each cylinder entering the engine. This MAF voltage output signal is then used to diagnose engine pumping issues.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: December 31, 2019
    Assignee: Automotive Test Solutions, Inc.
    Inventors: Bernie C. Thompson, Neal R. Pederson
  • Patent number: 10466084
    Abstract: A housing defines a bypass passage and a sub-bypass passage therein. A bypass passage is configured to draw a part of an air flowing through a duct. The sub-bypass passage branches off the bypass passage and is configured to draw a part of air flowing through the bypass passage. A flow rate sensor is arranged in the sub-bypass passage and configured to generate an electric signal according to a flow rate of air in the duct by performing heat transfer with air passing through the sub-bypass passage. A physical quantity sensor is configured to measure a physical quantity of air in the duct. A sensor assembly is integrally formed with the flow rate sensor, the physical quantity sensor, and a circuit module. The circuit module includes a substrate that is configured to process signals from the flow rate sensor and the physical quantity sensor.
    Type: Grant
    Filed: April 27, 2018
    Date of Patent: November 5, 2019
    Inventor: Shinichi Kamiya
  • Patent number: 10393102
    Abstract: A pump for pumping a liquid has a pump housing with at least one inlet and at least one outlet. The pump housing has an eccentric rotatable relative to the pump housing by an axle. A deformable element is arranged between the pump housing and the eccentric, and by the deformable element, at least one pump path from the at least one inlet to the at least one outlet is delimited and at least one movable pump path seal is formed, which separates at least one closed pump volume in the pump path. The at least one movable seal is movable in a pump direction from the inlet to the outlet by a movement of the eccentric to pump the fluid along the pump path. The pump has at least one adjustable axial calibrating device, by which the deformable element is clamped in the axial direction parallel to the axle.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: August 27, 2019
    Assignee: Continental Automotive GmbH
    Inventors: Rolf Brück, Jan Hodgson
  • Patent number: 10303189
    Abstract: In one embodiment, a modular method of making mass flow controllers for delivery of a plurality of process gases includes providing a plurality of monolithic bases, each of the monolithic bases having a plurality of flow component mounting regions. A first set of flow components are coupled to the flow component mounting regions of a first of the monolithic bases to form a mass flow controller having a first set of operating characteristics. A second set of flow components are coupled to the flow component mounting regions of a second of the monolithic bases to form a mass flow controller having a second set of operating characteristics which are different from the first set of operating characteristics.
    Type: Grant
    Filed: June 30, 2017
    Date of Patent: May 28, 2019
    Inventors: Daniel T. Mudd, Marshall B. Grill, Norman L. Batchelor, II
  • Patent number: 10203234
    Abstract: To add a function of detecting a temperature to an ultrasonic flow sensor without making the structure of the ultrasonic flow sensor complicated. A sensor portion of the ultrasonic flow sensor includes an acoustic coupling member. The sensor portion includes a heat transfer member having a heat detecting surface for detecting heat of piping. The temperature of heat transferred in the heat transfer member via the heat detecting surface is detected by a temperature detecting device. The heat transfer member restricts an amount of collapse of the acoustic coupling member in a radial direction of the piping when the sensor portion is fixed to the piping.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: February 12, 2019
    Inventors: Daishiro Ishikawa, Daiki Matsumoto
  • Patent number: 10184476
    Abstract: The invention relates to a method of determining a first hydraulic variable (Q) of a pump assembly (1) operated at a predefinable rotation speed (n0) from a mechanical or electrical variable (Mactual, Pel, nactual) by evaluating a correlation between the hydraulic variable (Q) with the mechanical or electrical variable (Mactual, Pel, nactual). A control parameter (Msetpoint, nsetpoint) of the pump assembly (1) is acted on by a periodic excitation signal (fA,n (t), fA,H(t)) having a predetermined frequency (f) such that a second hydraulic variable (H, ?p) is modulated. The instantaneous value of the first hydraulic variable (Q) is determined from the mechanical or electrical variable (Mactual (t), Pel (t), nactual (t)) as a system response (X(t)) to the excitation signal (fA,n (t), fA,H(t)), using the correlation. The invention further relates to a pump control system and a pump assembly that are configured for carrying out the method.
    Type: Grant
    Filed: March 26, 2015
    Date of Patent: January 22, 2019
    Assignee: WILO SE
    Inventors: Tilmann Sanders, Jens Fiedler
  • Patent number: 10041825
    Abstract: Mass flow controllers with on-tool diagnostic capabilities and methods for on-tool diagnostics are disclosed. A mass flow controller includes a differential voltage processing component to provide a first output that is indicative of a differential voltage between second and fourth nodes of a bridge circuit and a top voltage processing component provides a second output indicative of a top voltage between the first node and the third node of the bridge circuit. Top-and-differential voltage reference data stored in non-volatile memory defines a characteristic curve relating top voltage reference values to corresponding differential voltage reference values. A sensor analysis component obtains a top and differential voltage pair and assesses whether the top and differential voltage pair deviates from the characteristic curve to determine whether the sensing element circuit has changed since the top-and-differential voltage reference data was stored in the non-volatile memory.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: August 7, 2018
    Assignee: HITACHI METALS, LTD.
    Inventors: Alexei V. Smirnov, Patrick Albright
  • Patent number: 10018595
    Abstract: A fixing device for acoustic emission test sensors for rock damage testing, the device including: a fixing frame; installation bases operating to accommodate the acoustic emission test sensors, respectively; fixing assemblies operating to fix the acoustic emission test sensors in the installation bases; and installation mechanisms operating to arrange the installation bases on the fixing frame. The fixing frame is an assembled loop-shaped frame and includes between two and four frame members and corresponding fixing structures; and the frame members are assembled into an integrated loop-shaped frame by the fixing structures. Each of the installation bases is a cylinder structure. The cylinder structure includes: a cavity corresponding to an outer edge of each of the acoustic emission test sensors, and a wall including a gap for leading out wires of each sensor.
    Type: Grant
    Filed: February 5, 2016
    Date of Patent: July 10, 2018
    Inventors: Jianfeng Liu, Heping Xie, Yang Ju, Jianliang Pei, Huining Xu, Lu Wang
  • Patent number: 9885600
    Abstract: For diagnosing a proper functioning of an auxiliary heater in an air mass sensor in an engine system including an internal combustion engine, the auxiliary heater being used for preventing contamination of a sensor area, the air mass sensor communicating air mass information via a signal line during a sensor operating mode and, if a specified state on the signal line is detected, activating the auxiliary heater, the following are performed: setting the state of the signal line to the specified state for a predefined time period in an auxiliary heater operating mode; transmitting a first temperature information before the activation of the auxiliary heater operating mode and a second temperature information via the signal line after expiration of the predefined time period; and detecting the proper functioning of the auxiliary heater depending on the difference between the first temperature information and the second temperature information.
    Type: Grant
    Filed: December 15, 2015
    Date of Patent: February 6, 2018
    Inventors: Pandurang Jadhav, Daniel Kuhn
  • Patent number: 9849235
    Abstract: A method, computer program product, and infusion pump assembly for determining a first rate-of-change force reading that corresponds to the delivery of a first dose of an infusible fluid via an infusion pump assembly. At least a second rate-of-change force reading is determined that corresponds to the delivery of at least a second dose of the infusible fluid via the infusion pump assembly. An average rate-of-change force reading is determined based, at least in part upon the first rate-of-change force reading and the at least a second rate-of-change force reading.
    Type: Grant
    Filed: May 4, 2015
    Date of Patent: December 26, 2017
    Inventors: Marc A Mandro, Robert J Bryant
  • Patent number: 9724549
    Abstract: An installation for testing open fire extinguishing systems includes a smoke and/or mist generator and a connecting conduit suitable and dedicated for being connected to a fire fighting system. A method for testing of fire extinguishing systems has the following steps performed in any suitable order: a) providing an installation for the generation of smoke and/or mist, b) connecting a conduit of the installation to a conduit of a first section of a preferably open fire extinguishing system, c) opening a valve which provides a connection between the first section of the fire fighting system and the connecting conduit of the installation, d) turning on the smoke and/or mist generator, such that, by the exiting of the smoke and/or mist, the spray heads of the first section of the fire extinguishing system can be inspected on their openness, e) repeating steps b-d for any further section of the fire extinguishing system.
    Type: Grant
    Filed: February 26, 2014
    Date of Patent: August 8, 2017
    Assignee: Luphi B.V.
    Inventor: Antoon Lambertus Ruurd Buitenhuis
  • Patent number: 9703901
    Abstract: A processor connected to a process module executes processor executable instructions stored on the process module according to process input data received by a process definition interface, according to variables input data received by a variables interface. A non-linear correction factor as defined by a non-linear correction factor module is applied to provide a solution to an iterative process. A processor implemented process solves a process problem and comprises processor executable instructions stored on a tangible storage device.
    Type: Grant
    Filed: August 15, 2013
    Date of Patent: July 11, 2017
    Assignee: Schneider Electric Software, LLC
    Inventors: Rajkumar Vedam, James Kattapuram, Peter Le
  • Patent number: 9677921
    Abstract: A method of manufacturing a Coriolis mass flowmeter from a polymeric material is described, in which a dynamically responsive manifold is fabricated from the same material as the flow sensor's flow-sensitive elements. The flowmeter is free of mechanical joints and adhesives. The manifold and flow-sensitive elements therefore do not slip or change their location relative one another, nor are they subject to differing degrees of thermal expansion that would otherwise undermine integrity, reliability, and/or accuracy of the boundary condition at the ends of the vibrating flow-sensitive elements.
    Type: Grant
    Filed: August 20, 2014
    Date of Patent: June 13, 2017
    Assignee: Malema Engineering Corporation
    Inventor: Alan M. Young
  • Patent number: 9410920
    Abstract: An apparatus is mountable to a duct having a cross-section, for determining parameters of a flowable medium flowing through the duct. The apparatus includes a mounting attachment having a conduit member, and at least one combination of multiple sensing members configured to the conduit member. The conduit member may be disposed entirely within the duct such that the multiple sensing members are located within the duct establishing direct contact with the flowable medium. The multiple sensing members include oxygen and temperature sensing elements respectively, to determine parameter such as oxygen level in the flowable medium, and temperature of the flowable medium. Several such apparatus may be mounted in the duct across the cross-section to define a grid to determine said parameter at various locations across the cross-section.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: August 9, 2016
    Inventor: Allan Gunn Ferry
  • Patent number: 9395224
    Abstract: A Coriolis flowmeter (205) is provided. The Coriolis flowmeter (205) includes a flowmeter assembly (206) including one or more flowtubes (210), a driver (220) coupled to and configured to vibrate the flowmeter assembly (206), two or more pickoff sensors (230, 231) coupled to and configured to generate two or more vibration signals from the flowmeter assembly (206), and meter electronics (20) coupled to the driver (220) and the two or more pickoff sensors (230, 231), with the meter electronics (20) configured to provide a drive signal to the driver (220) and receive the resulting two or more vibration signals from the two or more pickoff sensors (230, 231), wherein the two or more pickoff sensors (230, 231) are affixed at two or more corresponding pickoff sensor locations that maximize a Coriolis vibration mode of the Coriolis flowmeter (205).
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: July 19, 2016
    Assignee: Micro Motion, Inc.
    Inventors: Manoj Rao, Anand Vidhate, Timothy J. Cunningham
  • Patent number: 9316527
    Abstract: 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.
    Type: Grant
    Filed: July 2, 2013
    Date of Patent: April 19, 2016
    Assignee: WFMS, Inc.
    Inventor: Daniel J. Rudroff
  • Publication number: 20150135797
    Abstract: Calibration of a multiphase flow meter to be used in a production process can be achieved by using a closed multiphase flow loop. In the device and method of the invention, the flow rates of each phase, oil and water, are individually measured after their separation using a separation vessel, and used as a reference for the calibration of a multiphase flow meter. Flow loop control is achieved by combining an oil-water interface position control and an oil level control in the separation vessel.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 21, 2015
    Inventors: Reynaldo Martín ROMERO, Gustavo Damian GARBATI, Carlos Alberto LAGO, Amadeo SASIA, Bernardo BALLESTÉ, Julia GARCIA, Sebastian MORE, Daniel PUSIOL, Dante PUSIOL
  • Patent number: 9035781
    Abstract: A gas appliance monitoring apparatus for automatically detecting and alerting to a “gas-out” condition of a gas appliance during operation, and/or for alerting to the presence of prolonged “gas-on” conditions of an appliance. The apparatus utilizes a highly sensitive low loss and low flow gas flow indicator with multiple flow sensors to monitor the gas flow characteristics of the appliance during use. A gas flow analyzer and alarm timing mechanism analyzes the gas flow characteristics and sounds an alarm at the appliance or wirelessly at a remote location upon detection of either of the above conditions. A biasing attraction magnet is incorporated in the fluid flow indicator to offset either the force of gravity or a return spring in low flow/low pressure applications. The piston is sealed for use in high pressure/low flow applications, and provided with a vent hole for residual gas bleed-off upon a stoppage of gas flow.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: May 19, 2015
    Inventor: David A. Struyk
  • Publication number: 20150121988
    Abstract: The disclosed embodiments include a method, apparatus, and computer program product for providing a self-validating mass flow controller or mass flow meter. For example, in one embodiment, a self-validating mass flow controller is disclosed that does not require any software modification to a tool/tool controller in which the mass flow controller is being utilized. In other embodiments, a self-validating mass flow controller is disclosed that does not require any hardware or mechanical changes to an existing mass flow controller. Still, the disclosed embodiments further include a self-validating mass flow controller that is configured to determine valve leak and sensor offset simultaneously for performing real time in-situ correction of a mass flow controller's output for zero offset or zero drift in the presence of valve leak.
    Type: Application
    Filed: March 4, 2013
    Publication date: May 7, 2015
    Inventors: Berwin Banares, Bill Valentine, John Lull, Anthony Kehoe, Chris Ellec
  • Patent number: 9021855
    Abstract: 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.
    Type: Grant
    Filed: November 14, 2012
    Date of Patent: May 5, 2015
    Inventor: Leroy C. Delatorre
  • Patent number: 9021854
    Abstract: 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.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: May 5, 2015
    Assignee: SNECMA
    Inventors: Franck Godel, Nicolas Marie Pierre Gueit, Julien Marcel Roger Maille, Benoit Pontallier
  • Publication number: 20150114078
    Abstract: A flow rate measurement device of the present invention includes a flow rate signal detection unit for detecting a flow rate signal of a fluid to be measured flowing through flow path, flow rate calculation unit for calculating a flow rate from the flow rate signal detected by the flow rate signal detection unit, and oscillation circuit for generating a reference clock. Furthermore, the flow rate measurement device includes temperature calculation unit for calculating a temperature from a frequency change resulting from a temperature change of oscillation circuit, and flow rate correction unit for correcting the flow rate calculated by the flow rate calculation unit by obtaining an offset flow rate at a desired temperature based on the temperature calculated by temperature calculation unit. Thus, accuracy of flow rate measurement can be improved.
    Type: Application
    Filed: May 16, 2013
    Publication date: April 30, 2015
    Inventors: Fumikazu Shiba, Yuji Nakabayashi, Kouichi Takemura, Yuji Fujii
  • Publication number: 20150107328
    Abstract: To improve the accuracy of multiphase mixture flow rate measurements, properties of a multiphase mixture are determined under conditions expected inside a pipeline and flow regimes are determined for the expected flow rates. Slug reducing parameters of the pipeline are provided at a pipeline section and a flowmeter is installed at the end of that pipeline section.
    Type: Application
    Filed: October 13, 2014
    Publication date: April 23, 2015
    Inventors: Alexander Starostin, Andrei Alexandrovich Osiptsov
  • Publication number: 20150068271
    Abstract: A method for calibrating a multiple flow conduit flow meter (200) is provided according to an embodiment of the invention. The multiple flow conduit flow meter (200) includes a first flow conduit (201) conducting a first flow stream and a pair of first pickoff sensors (215, 215?) affixed to the first flow conduit (201). The multiple flow conduit flow meter (200) further includes at least one additional flow conduit (202) conducting at least one additional flow stream and at least one pair of additional pickoff sensors (216, 216?) affixed to the at least one additional flow conduit (202).
    Type: Application
    Filed: November 19, 2014
    Publication date: March 12, 2015
    Applicant: Micro Motion, Inc.
    Inventors: Charles Paul Stack, Andrew Timothy Patten, Gregory Treat Lanham, Mark James Bell
  • Patent number: 8950260
    Abstract: A particulate flow monitor for a pneumatic system including a particulate flow tube defining a particulate flow path, a blower connected to the flow tube and the flow tube terminating at a particulate discharge, which flow monitor comprises an acoustic transducer connected to the flow tube intermediate the blower and the discharge; said acoustic transducer being located in said particulate flow path; an impact surface on said acoustic transducer adapted for being impacted by the particulate matter in said flow path; and an electrical signal generator connected to said acoustic transducer and adapted for generating an electrical signal in response to sound waves created by particulate matter impact; said signal generator including an output adapted for providing an electrical output signal corresponding to said sound waves; and a processor connected to said signal generator output; and said processor being programmed to monitor particulate flow based on said detected particulate matter impact.
    Type: Grant
    Filed: March 11, 2011
    Date of Patent: February 10, 2015
    Assignee: Intelligent Agricultural Solutions, LLC
    Inventors: Joshua N. Gelinske, Adam A. Reich, Barry D. Batcheller
  • Publication number: 20150020570
    Abstract: A device for determining a gas mass flow rate includes a first sensor unit comprising at least one first temperature measuring element and a first heating element. A second senor unit comprises at least one second temperature measuring element and a second heating element. A control unit is configured to adjust the first heating element to a first controlled excessive temperature. The control unit is connected to the second heating element so that the second heating element is adjustable to a second controlled excessive temperature.
    Type: Application
    Filed: January 22, 2013
    Publication date: January 22, 2015
    Applicant: PIERBURG GMBH
    Inventors: Karl Wuebbeke, Lars Baumeister, Dirk Kamarys, Manfred Schrammek
  • Patent number: 8919181
    Abstract: A multiple flow conduit flow meter (200) is provided according to an embodiment of the invention. The multiple flow conduit flow meter (200) includes a first flow conduit (201) conducting a first flow stream and a pair of first pickoff sensors (215, 215?) affixed to the first flow conduit (201). The multiple flow conduit flow meter (200) further includes at least one additional flow conduit (202) conducting at least one additional flow stream and at least one pair of additional pickoff sensors (216, 216?) affixed to the at least one additional flow conduit (202). The at least one additional flow stream is independent of the first flow stream. The multiple flow conduit flow meter (200) further includes a common driver (220) configured to vibrate both the first flow conduit (201) and the at least one additional flow conduit (202) in order to generate a first vibrational response and at least one additional vibrational response.
    Type: Grant
    Filed: August 24, 2006
    Date of Patent: December 30, 2014
    Assignee: Micro Motion, Inc.
    Inventors: Charles Paul Stack, Andrew Timothy Patten, Gregory Treat Lanham, Mark James Bell
  • Publication number: 20140366607
    Abstract: An air flow rate adjusting apparatus adjusts an output of an air flow meter based on a dimension of a gap between a back surface of a sensor chip and a bottom surface of a recess of a support plate.
    Type: Application
    Filed: June 12, 2014
    Publication date: December 18, 2014
    Inventors: Hidehito TSUJII, Takao Ban
  • Patent number: 8904882
    Abstract: A method and device for determining the flow rate of a flowing medium according to the plummet principle is characterized by a simplified determination of the calibration data sets in that at least one set of calibration data is recorded with at least one reference medium under at least one reference measurement condition. Then, a position of a plummet which is dependent on the flowing medium is determined under a measurement condition which differs from the reference condition. Here, the set of calibration data is converted from the reference measurement condition to the measurement condition, and from a determined position of the plummet, a measure for the flow rate of the medium is then determined.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: December 9, 2014
    Assignee: KROHNE Messtechnik GmbH
    Inventor: Philipp Mertmann
  • Patent number: 8887549
    Abstract: A method is disclosed for determining leakby in a flow controller (100) comprising a flow sensor (102), a flow control valve (106) and electronics (104). The electronics are coupled to the flow sensor, the flow control valve and configured to adjust the flow control valve in response to the signal of the flow sensor indicating the flow rate of the material such that a set flow rate of material through the flow controller is maintained. The steps of the method comprise determining (302) a zero drift (Qdrift) value for the flow sensor (102). Determining (304) a flow rate (Qflow) through the flow controller (100) when the control valve (106) is in the fully closed position. And determining (306) the leakby through the flow controller (100) where the leakby is equal Qflow-Qdrift.
    Type: Grant
    Filed: February 19, 2007
    Date of Patent: November 18, 2014
    Assignee: Brooks Instrument, LLC
    Inventors: Jay J. Mendelson, Christopher A. Mazza, Scott Amsbaugh, Gary Francis Conner, Edward T. Fisher
  • Patent number: 8880224
    Abstract: An airflow managing system for monitoring airflow of a HVAC system, a HVAC system and a method of monitoring the airflow in a HVAC system is provided. In one embodiment, the airflow managing system includes: (1) an air pressure sensor configured to obtain an air pressure measurement directly from a scroll of an air blower of the HVAC system and (2) a HVAC controller configured to determine an airflow rate for the HVAC system based on the air pressure measurement and corresponding parameters associated with the air blower.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: November 4, 2014
    Assignee: Lennox Industries Inc.
    Inventors: Erroll L. Eaton, Mark D. Hess, Richard A. Mauk, Stephen A. Walter, David M. Wynnick
  • Publication number: 20140318210
    Abstract: A method for calibrating liquid flow measurements in a printing apparatus that includes a liquid flow line having a flow meter therein comprises the steps of: (a) using a positive displacement liquid pump operable while connected in fluid communication with the flow meter, pumping a liquid at a directly measured, precisely dispensed flow rate through the flow meter; (b) using the flow meter, measuring the volumetric flow rate of a liquid passed through the flow meter; (c) comparing the volumetric flow rate dispensable by the pump to a volumetric flow rate measurable by the flow meter; and (d) modifying the calibration parameters of the flow meter in accordance with the flow rate dispensed from the pump.
    Type: Application
    Filed: April 15, 2014
    Publication date: October 30, 2014
  • Patent number: 8868357
    Abstract: Temperature compensation is applied to correct for temperature mismatch between a reference chamber and a disposable chamber in a pneumatic pumping system for dialysis fluid for peritoneal dialysis. The mismatch creates an error in the calculation of pumping volume of dialysate fluid. Applying a correction for the temperature mismatch helps to more precisely control the volume of dialysate that is metered to the patient. Also disclosed are ways to keep temperatures constant and to use temperature sensors to accurately measure the temperatures of the chambers. In other aspects, the temperature of the dialysate fluid itself may be measured and used to apply a correction to the volume of fluid that is pumped to the patient.
    Type: Grant
    Filed: May 18, 2011
    Date of Patent: October 21, 2014
    Assignees: Baxter International Inc., Baxter Healthcare S.A.
    Inventors: Bruce E. Huitt, Douglas E. Vincent, Gideon Hecht
  • Publication number: 20140305184
    Abstract: A technique for calibrating a fluid flow sensor includes generating fluid flow at a first speed. A first temperature of the fluid flow is determined using a first temperature sensor that is positioned upstream of the fluid flow sensor. A first power is supplied to a main heater of the fluid flow sensor to adjust a second temperature of a first plate of the fluid flow sensor to be substantially equal to the first temperature, A second power is supplied to a guard heater of the fluid flow sensor to adjust a third temperature of a second plate of the fluid flow sensor to be substantially equal to a fourth temperature of the first plate. The first and second plates are separated by a spacer and the first speed and the third temperature provide a calibration point on a calibration curve for the fluid flow sensor.
    Type: Application
    Filed: September 30, 2013
    Publication date: October 16, 2014
    Inventors: Arden L. Moore, Katie L. Pizzolato, Carrie Sitten Westmark
  • Publication number: 20140305183
    Abstract: An air-flow sensor is configured to be positioned in an air-flow and attached to a surface in a manner that allows air to flow over an extremity of the sensor. The air-flow sensor includes a base plate, a first heater, a first temperature sensor, a spacer, a second heater, a second temperature sensor, and a cap. The base plate is configured to be the coupled to the surface. The first heater is positioned on the base plate and is configured to heat the base plate. The first temperature sensor is positioned to measure a first temperature of the first heater. The spacer is positioned on the first heater and the second heater is positioned on the spacer. The second temperature sensor is positioned to measure a second temperature of the second heater. The cap is positioned on the second heater, which is configured to heat the cap.
    Type: Application
    Filed: April 10, 2013
    Publication date: October 16, 2014
  • Publication number: 20140298882
    Abstract: A time correlated dual chronometric interpolated prover apparatus with temporal reconciliation assembly is operable for producing signals for selecting a corrected time interval B of the flowmeter output signal for comparison with the time interval A. The temporal reconciliation assembly being configured for detecting a plurality of frequencies of pulses of the flowmeter output signal, and being further configured for selecting the time interval B utilizing the plurality of frequencies. A possible non-limiting embodiment includes the temporal reconciliation assembly being operable for utilizing an anticipated frequency for locating a first pulse.
    Type: Application
    Filed: August 8, 2013
    Publication date: October 9, 2014
  • Patent number: 8852110
    Abstract: The velocity of fluids containing particles that scatter ultrasound can be measured by determining the Doppler shift of the ultrasound scattered by the particles in the fluid. Measuring fluid flow in cylindrical vessels such as blood vessels is an important use of Doppler ultrasound. This invention teaches using various configurations of cylindrical diffraction-grating transducers and cylindrical non-diffraction-grating transducers that suppress the Doppler shift from non-axial components of fluid velocity while being sensitive to the Doppler shift produced by axial velocity components. These configurations thus provide accurate measurement of the net flow down the vessel, even when the fluid flow is curved or not parallel to the vessel wall.
    Type: Grant
    Filed: January 25, 2012
    Date of Patent: October 7, 2014
    Assignee: DVX, LLC
    Inventor: David Vilkomerson
  • Publication number: 20140276346
    Abstract: A shunt including an implantable housing having a proximal end and a distal end. A pressure sensitive valve is contained within the housing at a position between the proximal end and the distal end, and the pressure sensitive valve is capable of controlling a flow of fluid between the fluid inlet port and the fluid outlet port. The shunt further including a sensor assembly fluidly coupled to the pressure sensitive valve, wherein the sensor assembly is mechanically actuated and capable of detecting the flow of fluid through the pressure sensitive valve. A condition of the shunt can be detected by detecting a flow of fluid through the shunt and generating a signal indicative of a period of fluid flow through the implantable shunt based on the detecting. The signal can be output to an external device capable of determining, from the signal, whether the shunt is malfunctioning.
    Type: Application
    Filed: March 13, 2014
    Publication date: September 18, 2014
    Inventor: Siddharth Sadanand
  • Patent number: 8826716
    Abstract: One embodiment of an electromagnetic flow rate measurement system includes electromagnetic flowmeters arranged at intervals from one another in the peripheral direction of an annular flow passage 1 in which an electric conductive fluid flows. Each of the electromagnetic flowmeters comprises: an excitation member that has magnets arranged at intervals from one another in the outer peripheral surface of the annular flow passage so as to form a magnetic field in the direction perpendicular to the outer peripheral surface of the annular flow passage; and electrodes that are provided between the magnets of the excitation member and between the magnets of the excitation member so as to measure voltage generated when the electric conductive fluid crosses the magnetic field. The polarities of the magnets at the end portions of the closest excitation members of the adjacent electromagnetic flowmeters are opposed to each other.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: September 9, 2014
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Takatoshi Asada, Daigo Kittaka, Yasuko Oyamatsu, Masafumi Komai, Hiroyuki Oota
  • Publication number: 20140230519
    Abstract: A method for correcting offset drift effects of a thermal measurement device (10) which comprises at least one temperature sensor (15a, 15b) arranged at a defined distance from a heating device (12) for a fluid to be measured, for measuring at least one measurement variable describing the temperature and/or temperature profile during operation of the heating device (12), in which a reference measured value (35) is measured at a reference time in a first measurement of the measurement variable with the heating device (12) turned off, in which a drift measured value (36) is measured at at least one later time in a second measurement of the measurement variable with the heating device (12) turned off, and in which a drift correction is carried out during the measurement by using the heating device (12) on the basis of a difference between the drift measured value (36) and the reference measured value (35).
    Type: Application
    Filed: April 24, 2014
    Publication date: August 21, 2014
    Applicant: HYDROMETER GMBH
    Inventors: Thomas KLEINER, Philippe PRETRE, Andreas KEMPE, Hans-Michael SONNENBERG
  • Publication number: 20140216126
    Abstract: A device for measuring a fuel flow in a test stand comprises a measuring module (10) for measuring a fuel flow guided through the measuring module (10) as well as a conditioning module (11) arranged downstream of the measuring module (10) for conditioning the fuel. Moreover, a verification module (19) is provided downstream of the measuring module (10) for checking the measuring precision of the measuring module (10). The fuel may be guided optionally to the conditioning module (11) or to the verification module (19). The verification module (19) is an integral part of the device may have an injector (26) as a dosing unit for extracting an exactly defined reference fuel quantity.
    Type: Application
    Filed: March 15, 2012
    Publication date: August 7, 2014
    Inventors: Rainer Thuering, Guenter Hagemann