Patents by Inventor Timothy J. Cunningham

Timothy J. Cunningham 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).

  • Publication number: 20080281535
    Abstract: Meter electronics (20) for a flow meter (5) is provided according to an embodiment of the invention. The meter electronics (20) includes an interface (201) for receiving a vibrational response from the flow meter (5) and a processing system (203) in communication with the interface (201). The vibrational response is a response to a vibration of the flow meter (5) at a substantially resonant frequency. The processing system (203) is configured to receive the vibrational response from the interface (201), determine a frequency (?0) of the vibrational response, determine a response voltage (V) and a drive current (I) of the vibrational response, measure a decay characteristic (?) of the flow meter (5), and determine the stiffness parameter (K) from the frequency (?0), the response voltage (V), the drive current (I), and the decay characteristic (?).
    Type: Application
    Filed: September 19, 2005
    Publication date: November 13, 2008
    Inventors: Matthew Joseph Rensing, Andrew Timothy Patten, Timothy J. Cunningham, Mark James Bell
  • Publication number: 20080249027
    Abstract: The present invention relates to the discovery of a composition including a seven-amino acid peptide that promotes neuronal survival, inhibits inflammation, and is a potent inhibitor of sPL2A, and uses thereof.
    Type: Application
    Filed: October 12, 2007
    Publication date: October 9, 2008
    Inventors: Timothy J. Cunningham, Lihua Yao, Jeffrey I. Greenstein
  • Publication number: 20080223148
    Abstract: A meter electronics (20) for generating a drive signal for a vibratory flowmeter (5) is provided according to an embodiment of the invention. The meter electronics includes an interface (201) and a processing system (203). The processing system is configured to receive the sensor signal (201) through the interface, phase-shift the sensor signal (210) substantially 90 degrees to create a phase-shifted sensor signal, determine a phase shift value from a frequency response of the vibratory flowmeter, and combine the phase shift value with the sensor signal (201) and the phase-shifted sensor signal in order to generate a drive signal phase (213). The processing system is further configured to determine a sensor signal amplitude (214) from the sensor signal (210) and the phase-shifted sensor signal, and generate a drive signal amplitude (215) based on the sensor signal amplitude (214), wherein the drive signal phase (213) is substantially identical to a sensor signal phase (212).
    Type: Application
    Filed: September 13, 2006
    Publication date: September 18, 2008
    Inventors: Timothy J Cunningham, William M. Mansfield, Craig B. McAnally
  • Patent number: 7343775
    Abstract: A gas test system (300) is disclosed comprised of a flow loop (302), a blower system (304), a temperature control system (306), a reference meter system (308), and a unit under test (UUT) system (310). The UUT system connects a unit under test (UUT) to the flow loop. The blower system receives the gas under pressure at an inlet (321), and generates a high flow rate of the gas out of an outlet (322) while generating a low pressure rise from the inlet to the outlet. The temperature control system receives the flow of gas from the blower system and controls the temperature of the gas. The reference meter system and the UUT in the UUT system measure a property of the gas circulating through the flow loop. The measurements of the reference meter system can be compared to the measurements of the UUT to calibrate the UUT.
    Type: Grant
    Filed: June 11, 2003
    Date of Patent: March 18, 2008
    Assignee: Micro Motion, Inc.
    Inventors: Timothy J. Cunningham, Andrew Timothy Patten, Charles L. Gray, Dean M. Standiford
  • Publication number: 20040132665
    Abstract: A synthetic peptide sequence demonstrating neuroprotective and anti-inflammatory functions is disclosed. Methods of use for the synthetic peptide are also provided.
    Type: Application
    Filed: November 17, 2003
    Publication date: July 8, 2004
    Inventors: Timothy J. Cunningham, Lihua Yao
  • Patent number: 6694279
    Abstract: Movement of a structure, such a conduit of a Coriolis mass flowmeter, is estimated. A plurality of motion signals representing motion of the structure are mode selective filtered to generate a plurality of mode selective filtered motion signals such that the mode selective filtered motion signals preferentially represent motion associated with a vibrational mode of the structure. A plurality of phase estimates is generated from the plurality of mode selective filtered motion signals. The plurality of phase estimates may be generated using a phase reference derived from a mode selective filtered motion signal of the plurality of mode selective filtered motion signals. According to some embodiments, a frequency of a mode selective filtered motion signal is estimated, and quadrature first and second reference signals are generated based on the estimated frequency. The plurality of phase estimates is generated from the mode selective filtered motion signals and the reference signals.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: February 17, 2004
    Assignee: Micro Motion, Inc.
    Inventors: Timothy J. Cunningham, David Lee Campbell, Thomas Dean Sharp
  • Patent number: 6535826
    Abstract: Motion signals representing motion of a conduit of a mass flowmeter are mode selective filtered to generate a plurality of mode selective filtered motion signals such that the plurality of mode selective filtered motion signals preferentially represent motion associated with a vibrational mode of the conduit. A plurality of time difference estimates is generated from the plurality of mode selective filtered motion signals. A correlation measure is generated from the plurality of time difference estimates. A status of the mass flowmeter system is determined from the generated correlation measure. In some embodiments, the correlation measure comprises an intercept parameter of a scaling function that relates the plurality of time difference estimates to a plurality of reference time differences representing motion of the conduit at a known mass flow. In other embodiments, the correlation measure comprises a correlation coefficient estimated from the plurality of time difference estimates.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: March 18, 2003
    Assignee: Micro Motion, Inc.
    Inventors: Timothy J. Cunningham, David Lee Campbell, Thomas Dean Sharp
  • Publication number: 20020183941
    Abstract: Motion signals representing motion of a conduit of a mass flowmeter are mode selective filtered to generate a plurality of mode selective filtered motion signals such that the plurality of mode selective filtered motion signals preferentially represent motion associated with a vibrational mode of the conduit. A plurality of time difference estimates is generated from the plurality of mode selective filtered motion signals. A correlation measure is generated from the plurality of time difference estimates. A status of the mass flowmeter system is determined from the generated correlation measure. In some embodiments, the correlation measure comprises an intercept parameter of a scaling function that relates the plurality of time difference estimates to a plurality of reference time differences representing motion of the conduit at a known mass flow. In other embodiments, the correlation measure comprises a correlation coefficient estimated from the plurality of time difference estimates.
    Type: Application
    Filed: February 16, 2001
    Publication date: December 5, 2002
    Inventors: Timothy J. Cunningham, David Lee Campbell, Thomas Dean Sharp
  • Publication number: 20020183951
    Abstract: Movement of a structure, such a conduit of a Coriolis mass flowmeter, is estimated. A plurality of motion signals representing motion of the structure are mode selective filtered to generate a plurality of mode selective filtered motion signals such that the mode selective filtered motion signals preferentially represent motion associated with a vibrational mode of the structure. A plurality of phase estimates is generated from the plurality of mode selective filtered motion signals. The plurality of phase estimates may be generated using a phase reference derived from a mode selective filtered motion signal of the plurality of mode selective filtered motion signals. According to some embodiments, a frequency of a mode selective filtered motion signal is estimated, and quadrature first and second reference signals are generated based on the estimated frequency. The plurality of phase estimates is generated from the plurality of mode selective filtered motion signals and the first and second reference signals.
    Type: Application
    Filed: February 16, 2001
    Publication date: December 5, 2002
    Inventors: Timothy J. Cunningham, David Lee Campbell, Thomas Dean Sharp
  • Patent number: 6466880
    Abstract: Mass flow of a material in a conduit is estimated by mode selective filtering a plurality of motion signals representing motion of the conduit to generate a plurality of mode selective filtered motion signals such that the mode selective filtered motion signals preferentially represent motion associated with a vibrational mode of the conduit. A plurality of phase estimates is generated from the plurality of mode selective filtered motion signals. A mass flow estimate is generated from the plurality of phase estimates. The plurality of phase estimates may be estimated using a phase reference derived from one of the plurality of mode selective filtered motion signals. In some embodiments, a frequency of a mode selective filtered motion signal of the plurality of mode selective filtered motion signals is estimated. Quadrature first and second reference signals are generated based on the estimated frequency.
    Type: Grant
    Filed: February 16, 2001
    Date of Patent: October 15, 2002
    Assignee: Micro Motion, Inc.
    Inventors: Timothy J. Cunningham, David Lee Campbell, Thomas Dean Sharp
  • Publication number: 20020143481
    Abstract: Mass flow of a material in a conduit is estimated by mode selective filtering a plurality of motion signals representing motion of the conduit to generate a plurality of mode selective filtered motion signals such that the mode selective filtered motion signals preferentially represent motion associated with a vibrational mode of the conduit. A plurality of phase estimates is generated from the plurality of mode selective filtered motion signals. A mass flow estimate is generated from the plurality of phase estimates. The plurality of phase estimates may be estimated using a phase reference derived from one of the plurality of mode selective filtered motion signals. In some embodiments, a frequency of a mode selective filtered motion signal of the plurality of mode selective filtered motion signals is estimated. Quadrature first and second reference signals are generated based on the estimated frequency.
    Type: Application
    Filed: February 16, 2001
    Publication date: October 3, 2002
    Inventors: Timothy J. Cunningham, David Lee Campbell, Thomas Dean Sharp
  • Patent number: 6427127
    Abstract: A process parameter such as mass flow is determined in a vibrating conduit process parameter sensor using a complex modal transformation estimated from a plurality of motion signals representing motion of the parameter sensor conduit. According to an aspect of the invention, a complex eigenvector is provided representing motion of the conduit at the plurality of locations at a known mass flow. A plurality of motion signals is received from a plurality of motion transducers, the plurality of motion signals indicating motion at a plurality of locations on the conduit as a material flows through the conduit. A complex modal transformation relating the received plurality of motion signals to the complex eigenvector is estimated. Mass flow through the conduit is estimated from the known mass flow and the estimated complex modal transformation. Related apparatus and computer program products are also discussed.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: July 30, 2002
    Assignee: Micro Motion, Inc.
    Inventor: Timothy J. Cunningham
  • Patent number: 6360175
    Abstract: A drive system is taught for controlling the modal content of any number of drive signals used to excite any number of drives on a vibrating conduit such as is found in a Coriolis mass flowmeter or a vibrating tube densimeter. One or more motion signals are obtained from one or more spatially distinct feedback sensors. The motion signals are preferably filtered using a multi-channel modal filter to decompose the motion signals, each of which contain modal content at a plurality of vibration modes, into n single degree of freedom modal response signals. Each modal response signal corresponds to one of the vibration modes at which the vibrating conduit is excited. The n modal response signals are input to a drive channel having a separate processing channel for each of the n modal response signals.
    Type: Grant
    Filed: February 25, 1998
    Date of Patent: March 19, 2002
    Assignee: Micro Motion, Inc.
    Inventors: Timothy J. Cunningham, Stuart J. Shelley
  • Patent number: 6347293
    Abstract: A self-characterizing vibrating conduit sensor for measuring a process parameter in a material processing system includes a conduit configured to contain material from the material processing system and a plurality of motion transducers operative to produce a plurality of motion signals representing motion at a plurality of locations on the conduit. A modal parameter estimator is configured to receive the plurality of motion signals and operative to estimate a modal parameter from the received plurality of motion signals. The modal parameter, e.g., a modal filter parameter or a force projection parameter, relates behavior of the conduit to behavior of a single degree of freedom (SDOF) system. A process parameter estimator is configured to receive the plurality of motion signals, responsive to the modal parameter estimator and operative to estimate a process parameter associated with a material in the conduit from the received plurality of motion signals according to the estimated modal parameter.
    Type: Grant
    Filed: July 9, 1999
    Date of Patent: February 12, 2002
    Assignee: Micro Motion, Inc.
    Inventors: Timothy J. Cunningham, Stuart J. Shelley
  • Patent number: 6272438
    Abstract: A process parameter associated with a material contained in a conduit is estimated by estimating a real normal modal residual flexibility component associated with a real normal mode of motion of the conduit. A plurality of motion signals representing motion of the conduit is received. A residual-flexibility-compensated estimate of mass flow is generated from the received plurality of motion signals and the estimated real normal modal residual flexibility component. Related apparatus and computer program products are also described.
    Type: Grant
    Filed: August 5, 1998
    Date of Patent: August 7, 2001
    Assignee: Micro Motion, Inc.
    Inventors: Timothy J. Cunningham, David F. Normen, Stuart J. Shelley
  • Patent number: 6262024
    Abstract: A neuron regulatory factor (NRF), derived from cells of the central nervous system, is provided. A cytoprotective peptide (CPP) component of NRF is also provided, as are methods of using NRF or its CPP component. NRF comprises a large polypeptide or complex of polypeptides that is distinct from several other known neurotrophic or neuron regulatory factors. The CPP component of NRF is an acidic protein or protein complex whose amino acid sequence is unique among known protein sequences. Both NRF and its CPP component are capable of promoting survival and neurite outgrowth of cultured neurons in vitro, and preventing neuron degeneration and promoting neuron survival in vivo. The CPP component of NRF also exhibits a cytoprotective effect on non-neuronal cells.
    Type: Grant
    Filed: September 18, 1997
    Date of Patent: July 17, 2001
    Assignee: Philadelphia, Health and Education Corporation
    Inventors: Timothy J. Cunningham, Forrest Haun, Kathie L. Eagleson, Pat R. Levitt, Sarah E. Kennedy
  • Patent number: 6249752
    Abstract: A plurality of motion signals is received representing motion at a plurality of locations of a vibrating conduit containing material. The received plurality of motion signals is processed to resolve the motion into a plurality of real normal modal components. A process parameter is estimated from a real normal modal component of the plurality of real normal modal components. According to one aspect, the motion signals may be processed by applying a mode pass filter to produce an output that preferentially represents a component of the motion associated with a real normal mode of the vibrating conduit. A process parameter may be estimated from the filtered output using, for example, conventional phase difference techniques. According to another aspect, real normal modal motion is estimated from the received plurality of motion signals, and a process parameter is estimated from the estimated real normal modal motion.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: June 19, 2001
    Assignee: Micro Motion, Inc.
    Inventors: Timothy J. Cunningham, David F. Normen, Gary E. Pawlas, Stuart J. Shelley
  • Patent number: 6233526
    Abstract: A process parameter sensor for a material processing system includes a conduit configured to contain material from the material processing system. A plurality of motion transducers is operative to produce a plurality of motion signals representing motion at a number of locations on the conduit. An overdetermined process parameter estimator is responsive to the plurality of motion transducers and configured to receive the plurality of motion signals. The overdetermined process parameter estimator is operative to resolve conduit motion into motion attributable to each of a predetermined number of forces and to estimate a process parameter associated with a material in the conduit according to the resolved motion, wherein the number of locations exceeds the number of forces such that the plurality of motion signals provides an overdetermined information set for resolution of conduit motion into motion attributable to the predetermined number of forces.
    Type: Grant
    Filed: July 16, 1998
    Date of Patent: May 15, 2001
    Assignee: Micro Motion, Inc.
    Inventor: Timothy J. Cunningham
  • Patent number: 6230104
    Abstract: An oscillatory vibration driver is operably connected to a Coriolis flowmeter for use in vibrating the meter flow tubes. The meter electronics contain a mimetic circuit that permits use of the driver as a signal pickoff which provides a measurement of back electromotive force for use in calculating mass flow rate and density from the Coriolis flowmeter. The mimetic circuit contains an analog coil and magnet that facilitate the measurement of back electromotive force, or the mimetic circuit may comprise digital means.
    Type: Grant
    Filed: September 30, 1997
    Date of Patent: May 8, 2001
    Assignee: Micro Motion, Inc.
    Inventors: Stuart J. Shelley, Timothy J. Cunningham
  • Patent number: 6199022
    Abstract: A drive system for a vibrating tube-based measurement instrument employing a spatial filter to produce a drive signal having modal content only at a desired vibration mode. Multiple feedback sensors located at different locations along a vibrating tube produce multiple feedback sensors. Each feedback signal has applied to it a weighting or gain factor. All of the weighted feedback signals are then summed to produce a drive signal, or a signal proportional to a drive signal, having improved modal content as compared to any of the feedback signals by themselves. The weighting factors are selected by any of several means. One method is to build the eigenvector matrix for the vibrating flow tube by extracting the eigenvectors from a finite element model of the vibrating structure. The inverse or psuedo-inverse of the eigenvector matrix is calculated to obtain the modal filter vector. The appropriate set of weighting coefficients are selected from the modal filter vector.
    Type: Grant
    Filed: July 11, 1997
    Date of Patent: March 6, 2001
    Assignee: Micro Motion, Inc.
    Inventor: Timothy J. Cunningham