Patents by Inventor Wade M. Mattar
Wade M. Mattar has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7231835Abstract: A steam measurement system includes a Coriolis flowmeter associated with a vibratable flowtube to receive a flow of wet steam. A first sensor is associated with the flowtube to relay information about a motion of the flowtube by way of a first sensor signal. A second sensor determines a property of the flow and relays the property by way of a second sensor signal. A computing device receives the first and second sensor signals and is configured to calculate a steam quality of the flow from the first and second sensor signals. The computing device also may calculate the total heat energy flow rate of the flow. Other implementations may include a full or partial separator to separate the flow of wet steam into a substantially gas flow and a substantially liquid flow and a second Coriolis meter.Type: GrantFiled: February 1, 2006Date of Patent: June 19, 2007Assignee: Invensys Systems, Inc.Inventors: Robert E. Dutton, Wade M. Mattar
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Patent number: 7207229Abstract: A flowmeter is disclosed. The flowmeter includes a vibratable flowtube, and a driver connected to the flowtube that is operable to impart motion to the flowtube. A sensor is connected to the flowtube and is operable to sense the motion of the flowtube and generate a sensor signal. A controller is connected to receive the sensor signal. The controller is operable to determine a first flow rate of a first phase within a two-phase flow through the flowtube and determine a second flow rate of a second phase within the two-phase flow.Type: GrantFiled: February 1, 2006Date of Patent: April 24, 2007Assignee: Invensys Systems, Inc.Inventors: Wade M. Mattar, Manus P. Henry, Mihaela D. Duta, Michael S. Tombs
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Patent number: 7197408Abstract: A modular system and method is provided for enabling remote configuring and ordering of flowmeters in a client-server environment. The system includes a meter selection module configured to enable a user to select from a plurality of flowmeter types. A process data module receives process data from a client and a fluid selection module coupled to the process module is configured to receive a process fluid selection and to calculate properties thereof. A sizing module generates parameters of at least one sized flowmeter, sized in accordance with the received process data. A material selection module provides a list of materials from which the sized flowmeter may be fabricated, and a fluid rating module rates compatibility of the various materials with the process fluid selection. A results module is configured to generate data corresponding to expected performance of the sized flowmeter.Type: GrantFiled: January 26, 2005Date of Patent: March 27, 2007Assignee: Invensys Systems, Inc.Inventors: David A. Ferreira, Wade M. Mattar
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Patent number: 7188534Abstract: A flowmeter is disclosed. The flowmeter includes a vibratable flowtube, and a driver connected to the flowtube that is operable to impart motion to the flowtube. A sensor is connected to the flowtube and is operable to sense the motion of the flowtube and generate a sensor signal. A controller is connected to receive the sensor signal. The controller is operable to determine an individual flow rate of each phase within a multi-phase flow through the flowtube.Type: GrantFiled: March 2, 2005Date of Patent: March 13, 2007Assignee: Invensys Systems, Inc.Inventors: Michael S. Tombs, Manus P. Henry, Mihaela D. Duta, Robbie Lansangan, Robert E. Dutton, Wade M. Mattar
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Patent number: 7185526Abstract: 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.Type: GrantFiled: December 16, 2005Date of Patent: March 6, 2007Assignee: Invensys Systems, Inc.Inventor: Wade M. Mattar
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Patent number: 7117717Abstract: Techniques for measuring a density of a liquid within a fluid that includes both a liquid and a gas are described. A pressure of the fluid oscillates according to a time-varying function, which causes a density of the fluid also to oscillate according to the same time-varying function. A resulting pressure signal and density signal are analyzed to extract at least a first and second pressure value and at least a first and second density value, where the first pressure and density values occur at a first time, and the second pressure and density values occur at a second time. Then, the liquid density is calculated from the first and second pressure and density values. As a result, the liquid density may be calculated quickly and easily, with a minimum of effort on the part of an operator, and without requiring disruption of other measurement processes associated with the flowtube.Type: GrantFiled: December 13, 2004Date of Patent: October 10, 2006Assignee: Invensys Systems, Inc.Inventors: Wade M. Mattar, James H. Vignos
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Patent number: 7059199Abstract: A flowmeter is disclosed. The flowmeter includes a vibratable flowtube, and a driver connected to the flowtube that is operable to impart motion to the flowtube. A sensor is connected to the flowtube and is operable to sense the motion of the flowtube and generate a sensor signal. A controller is connected to receive the sensor signal. The controller is operable to determine a first flow rate of a first phase within a two-phase flow through the flowtube and determine a second flow rate of a second phase within the two-phase flow.Type: GrantFiled: February 9, 2004Date of Patent: June 13, 2006Assignee: Invensys Systems, Inc.Inventors: Wade M. Mattar, Manus P. Henry, Mihaela D. Duta, Michael S. Tombs
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Patent number: 7013740Abstract: A steam measurement system includes a Coriolis flowmeter associated with a vibratable flowtube to receive a flow of wet steam. A first sensor is associated with the flowtube to relay information about a motion of the flowtube by way of a first sensor signal. A second sensor determines a property of the flow and relays the property by way of a second sensor signal. A computing device receives the first and second sensor signals and is configured to calculate a steam quality of the flow from the first and second sensor signals. The computing device also may calculate the total heat energy flow rate of the flow. Other implementations may include a full or partial separator to separate the flow of wet steam into a substantially gas flow and a substantially liquid flow and a second Coriolis meter.Type: GrantFiled: December 18, 2003Date of Patent: March 21, 2006Assignee: Invensys Systems, Inc.Inventors: Robert E. Dutton, Wade M. Mattar
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Patent number: 6997032Abstract: 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.Type: GrantFiled: December 9, 2003Date of Patent: February 14, 2006Assignee: Invensys Systems, Inc.Inventor: Wade M. Mattar
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Patent number: 6895813Abstract: A method and apparatus for measuring flow rates is disclosed. At least one of a non-vortex based low-flow measurement and a vortex based flow measurement is taken. The measurement or measurements are communicated to a central processor. The processor analyzes the data provided and makes a determination as to the more accurate measurement, if there is more than one measurement. The flow rate is calculated by the processor and is based on either the singular or the more accurate measurement. Further enhancements include diagnosis of meter performance, redundancy of measurements, and re-calibration of either measurement device based on information from the other device.Type: GrantFiled: October 9, 2002Date of Patent: May 24, 2005Assignee: Fox Boro CompanyInventor: Wade M. Mattar
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Publication number: 20040221660Abstract: A steam measurement system includes a Coriolis flowmeter associated with a vibratable flowtube to receive a flow of wet steam. A first sensor is associated with the flowtube to relay information about a motion of the flowtube by way of a first sensor signal. A second sensor determines a property of the flow and relays the property by way of a second sensor signal. A computing device receives the first and second sensor signals and is configured to calculate a steam quality of the flow from the first and second sensor signals. The computing device also may calculate the total heat energy flow rate of the flow. Other implementations may include a full or partial separator to separate the flow of wet steam into a substantially gas flow and a substantially liquid flow and a second Coriolis meter.Type: ApplicationFiled: December 18, 2003Publication date: November 11, 2004Inventors: Robert E. Dutton, Wade M. Mattar
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Publication number: 20040200259Abstract: 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.Type: ApplicationFiled: December 9, 2003Publication date: October 14, 2004Inventor: Wade M. Mattar
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Publication number: 20030167836Abstract: A method and apparatus for measuring flow rates is disclosed. At least one of a non-vortex based low-flow measurement and a vortex based flow measurement is taken. The measurement or measurements are communicated to a central processor. The processor analyzes the data provided and makes a determination as to the more accurate measurement, if there is more than one measurement. The flow rate is calculated by the processor and is based on either the singular or the more accurate measurement. Further enhancements include diagnosis of meter performance, redundancy of measurements, and re-calibration of either measurement device based on information from the other device.Type: ApplicationFiled: October 9, 2002Publication date: September 11, 2003Inventor: Wade M. Mattar
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Patent number: 6178828Abstract: A driver is provided for a Coriolis flow meter having a flow tube adapted to vibrate at a predetermined resonance frequency to determine mass flow rate of a fluid passing therethrough. The driver includes a coil, a ferromagnetic core disposed coaxially within the coil, and a spring adapted to resiliently fasten the ferromagnetic core and the coil to one another. The coil is adapted for being rigidly disposed on the flow tube and the ferromagnetic core is adapted to oscillate within the coil in response to excitation of the coil. The spring serves to guide and dampen the oscillations of the ferromagnetic core relative to the coil so that the driver is free from attachment to a non-moving object. A pivotable and/or flexible restraint may be provided to maintain the core along a curved path to centripetally accelerate the core.Type: GrantFiled: February 11, 1998Date of Patent: January 30, 2001Inventor: Wade M. Mattar
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Patent number: 5926096Abstract: Drivers and sensors in Coriolis-type mass flowmeters are used to monitor and predict flowmeter failure modes due to mechanical deterioration during meter operation. The relative values of two different signals, e.g, resonant frequencies, associated with Coriolis flow conduit motion are monitored as an indicator of excessive mechanical deterioration and also used to compensate for shifts in meter factor. The noise spectrum of the sensor output is also monitored to indicate mechanical fatigue of the tubes. Energy loss in the vibrating tubes is monitored as an indication of fatigue to determine tube failure by determining the drive power needed to maintain constant velocity oscillation or measuring the decay rate of the drive signal when driver power is interrupted.Type: GrantFiled: March 11, 1996Date of Patent: July 20, 1999Assignee: The Foxboro CompanyInventors: Wade M. Mattar, James H. Vignos
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Patent number: 5570300Abstract: A sensor for provides a measurement and information about the validity of the measurement. The sensor includes a transducer for generating a data signal related to the value of a variable and a transmitter for receiving the data signal and generating output signals. The transmitter generates a first output signal related to the value of the variable. The transmitter also generates a second output signal based on a dynamic uncertainty analysis of the first output signal.Type: GrantFiled: March 20, 1995Date of Patent: October 29, 1996Assignee: The Foxboro CompanyInventors: Manus P. Henry, Wade M. Mattar, David W. Clarke, Janice Yang
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Patent number: 5546814Abstract: The invention features a manifold that includes two cylindrical ports and a cavity that connects to a fluid line. The ports both have the same cross-sectional area, and the center axes of the ports are oriented at the same angle with respect to the axis of the cavity. The ports couple to the cavity through separate transition regions, one of the transition regions coupling to a region at one end of the cavity that is circular in cross-section, and the other transition region coupling to an aperture disposed in a wall of the cavity. Both transition regions provide continuous fluid flow paths to the respective ports.Type: GrantFiled: October 26, 1994Date of Patent: August 20, 1996Assignee: The Foxboro CompanyInventors: Wade M. Mattar, Norman G. Hildreth
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Patent number: 5343764Abstract: A rigid central manifold block defines a coaxial inlet and outlet of the flowmeter and supports at least one continuous conduit loop substantially encircling the block and having its inlet and outlet ends closely spaced and rigidly connected to the block. Preferably, the loop includes a straight section perpendicular to the inlet and outlet ends. Dual drive means are preferably provided for oscillating the straight section back and forth about its perpendicular bisector and complementary position detectors employed at or near the opposite ends of the straight section, preferably at the same location as the drive units, provide readouts which are combined algebraically and synchronously demodulated to yield a Coriolis-related output indicative of mass flow. Preferably, a second loop, identical and parallel to the first, is supported by the same block. The block is channeled to serve as a manifold and interchangeable manifolds are disclosed for series and parallel flow through the two loops, respectively.Type: GrantFiled: April 30, 1992Date of Patent: September 6, 1994Assignee: The Foxboro CompanyInventors: Wade M. Mattar, Duane T. Thompson, Joseph P. DeCarlo, Yousif Hussain, Gordon W. Chitty
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Patent number: 5271281Abstract: A rigid central manifold block defines a coaxial inlet and outlet of the flowmeter and supports at least one continuous conduit loop substantially encircling the block and having its inlet and outlet ends closely spaced and rigidly connected to the block. Preferably, the loop includes a straight section perpendicular to the inlet and outlet ends. Dual drive means are preferably provided for oscillating the straight section back and forth about its perpendicular bisector and complementary position detectors employed at or near the opposite ends of the straight section, preferably at the same location as the drive units, provide readouts which are combined algebraically and synchronously demodulated to yield a Coriolis-related output indicative of mass flow. Preferably, a second loop, identical and parallel to the first, is supported by the same block. The block is channeled to serve as a manifold and interchangeable manifolds are disclosed for series and parallel flow through the two loops, respectively.Type: GrantFiled: September 30, 1992Date of Patent: December 21, 1993Assignee: The Foxboro CompanyInventors: Wade M. Mattar, Duane T. Thompson, Joseph P. DeCarlo, Yousif Hussain, Gordon W. Chitty
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Patent number: 5054326Abstract: A density insensitive mass flowmeter for measuring mass flow of fluid includes a continuous conduit loop with at least two resonant modes of oscillation of conduit and at least one dummy mass disposed on the conduit at a vibrational node of one of said resonant modes of oscillation. The dummy mass has a mass and position on the conduit such that the ratio of resonant frequencies of the resonant modes remains substantially constant for different densities of fluid flowing through the conduit.Type: GrantFiled: March 5, 1990Date of Patent: October 8, 1991Assignee: The Foxboro CompanyInventor: Wade M. Mattar