Patents by Inventor David A. Wendell

David A. Wendell 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).

  • Patent number: 12214677
    Abstract: A system includes an inverter including: a point-of-use controller for a power module, the point-of-use controller including: a positive voltage connection configured to receive a positive control voltage from a high-voltage controller; a command connection configured to receive a command from the high-voltage controller; a message connection configured to send and receive a message to and from the high-voltage controller; a negative voltage connection configured to receive a positive control voltage from the high-voltage controller; a north gate connection configured to output a north gate control signal to a north group of one or more switches; a south gate connection configured to output a south gate control signal to a south group of one or more switches; a north sense connection configured to connect to a first portion of a sensing trace; and a south sense connection configured to receive a second portion of the sensing trace.
    Type: Grant
    Filed: January 31, 2023
    Date of Patent: February 4, 2025
    Assignee: BorgWarner US Technologies LLC
    Inventors: Mark Wendell Gose, Seyed R. Zarabadi, David Paul Buehler, Kevin M. Gertiser
  • Patent number: 11254551
    Abstract: An apparatus for controlling tension in a pulling rope that is attached to a flying, unmanned aerial device or drone may utilize a cylinder around which the rope is wound, a shaft that longitudinally passes through the cylinder, a disc brake rotor that is mounted to the shaft, a brake caliper that is mounted circumferentially at a periphery of the disc brake rotor, and a brake lever that tensions a cable that is attached to, and movable to control movement of, the brake caliper, which may be hydraulic, against surfaces the disc brake rotor. The brake lever may be hand actuated and mounted to a handlebar. A frame may be part of the apparatus and support apparatus components and may have a protruding hitch portion that inserts into a vehicle's receiver hitch. An adjustable pulling rope guide support through which the rope is threaded, mounts to the frame.
    Type: Grant
    Filed: January 15, 2019
    Date of Patent: February 22, 2022
    Assignee: Quanta Associates, L.P.
    Inventors: James Alan Fulk, II, David Wendell Lapham, Timothy Dean Nutz
  • Patent number: 10551455
    Abstract: Magnetic resonance imaging (MRI) systems and methods using adiabatic tip-down and matched adiabatic flip-back pulses are disclosed. According to an aspect, a system includes a signal generator configured to generate a pulse sequence for on-resonance magnetization transfer preparation. The pulse sequence includes an adiabatic tip-down pulse and a matched adiabatic flip-back pulse for separating spins in a mobile spin pool from spins in a bound spin pool of an anatomical region of interest for imaging. The system includes radio frequency (RF) coils configured to transmit RF pulses in response to the pulse sequence and to acquire RF data in response to transmission of the RF pulses. Further, the system includes a processing system configured to process the RF data to provide a display image indicating different tissue types with discrimination.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: February 4, 2020
    Assignees: Duke University, Siemens Healthcare GmbH
    Inventors: David Wendell, Wolfgang Rehwald, Enn-Ling Chen, Raymond Kim
  • Publication number: 20190218076
    Abstract: An apparatus for controlling tension in a pulling rope that is attached to a flying, unmanned aerial device or drone may utilize a cylinder around which the rope is wound, a shaft that longitudinally passes through the cylinder, a disc brake rotor that is mounted to the shaft, a brake caliper that is mounted circumferentially at a periphery of the disc brake rotor, and a brake lever that tensions a cable that is attached to, and movable to control movement of, the brake caliper, which may be hydraulic, against surfaces the disc brake rotor. The brake lever may be hand actuated and mounted to a handlebar. A frame may be part of the apparatus and support apparatus components and may have a protruding hitch portion that inserts into a vehicle's receiver hitch. An adjustable pulling rope guide support through which the rope is threaded, mounts to the frame.
    Type: Application
    Filed: January 15, 2019
    Publication date: July 18, 2019
    Inventors: James Alan Fulk, II, David Wendell Lapham, Timothy Dean Nutz
  • Patent number: 10145920
    Abstract: Magnetic resonance imaging (MRI) systems and methods for determining and adjusting TI using single-line acquisition and automatic compartment detection. A method includes positioning a readout line of the MRI scanner through a compartment of interest of a region of interest in a subject. The method includes inverting magnetization within the readout line by playing an inversion pulse; and reading out data along the readout line after play of the inversion pulse. The method also includes determining a T1 value for each pixel along the readout line; determining the pixels that belong to first and second portions within the compartment of interest; determining a T1 value of each of the first and second portions by averaging the pixels within each portion; and determining an inversion time based on the determined T1 values such that the compartment of interest has a desired magnetization in an image to be acquired.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: December 4, 2018
    Assignee: Duke University
    Inventors: Wolfgang Rehwald, Elizabeth Jenista, Raymond Kim, David Wendell
  • Publication number: 20180143276
    Abstract: Magnetic resonance imaging (MRI) systems and methods using adiabatic tip-down and matched adiabatic flip-back pulses are disclosed. According to an aspect, a system includes a signal generator configured to generate a pulse sequence for on-resonance magnetization transfer preparation. The pulse sequence includes an adiabatic tip-down pulse and a matched adiabatic flip-back pulse for separating spins in a mobile spin pool from spins in a bound spin pool of an anatomical region of interest for imaging. The system includes radio frequency (RF) coils configured to transmit RF pulses in response to the pulse sequence and to acquire RF data in response to transmission of the RF pulses. Further, the system includes a processing system configured to process the RF data to provide a display image indicating different tissue types with discrimination.
    Type: Application
    Filed: May 4, 2016
    Publication date: May 24, 2018
    Inventors: David Wendell, Wolfgang Rehwald, Enn-Ling Chen, Raymond Kim
  • Patent number: 9862501
    Abstract: A computer-implemented method for providing a real-time global view of airline operations situational awareness is provided. The method is implemented using a situational awareness server system in communication with client systems and data sources. The method includes gathering a plurality of situational awareness data from a plurality of data sources including real-time data, updating the situational awareness data based on one or more business rules, augmenting the updated situational awareness data based on historical data, and determining whether to generate one or more alerts based on the augmented situational awareness data.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: January 9, 2018
    Assignee: THE BOEING COMPANY
    Inventors: Gregory John Small, James Lee Cantrell, Jr., Mark Hester, David Wendell Thompson
  • Publication number: 20170212195
    Abstract: Magnetic resonance imaging (MRI) systems and methods for determining and adjusting TI using single-line acquisition and automatic compartment detection. A method includes positioning a readout line of the MRI scanner through a compartment of interest of a region of interest in a subject. The method includes inverting magnetization within the readout line by playing an inversion pulse; and reading out data along the readout line after play of the inversion pulse. The method also includes determining a T1 value for each pixel along the readout line; determining the pixels that belong to first and second portions within the compartment of interest; determining a T1 value of each of the first and second portions by averaging the pixels within each portion; and determining an inversion time based on the determined T1 values such that the compartment of interest has a desired magnetization in an image to be acquired.
    Type: Application
    Filed: January 26, 2016
    Publication date: July 27, 2017
    Inventors: Wolfgang Rehwald, Elizabeth Jenista, Raymond Kim, David Wendell
  • Publication number: 20160288920
    Abstract: A computer-implemented method for providing a real-time global view of airline operations situational awareness is provided. The method is implemented using a situational awareness server system in communication with client systems and data sources. The method includes gathering a plurality of situational awareness data from a plurality of data sources including real-time data, updating the situational awareness data based on one or more business rules, augmenting the updated situational awareness data based on historical data, and determining whether to generate one or more alerts based on the augmented situational awareness data.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Inventors: Gregory John Small, James Lee Cantrell, JR., Mark Hester, David Wendell Thompson
  • Patent number: 8647853
    Abstract: The present invention relates to a method for controlling multi-phase chemical reactions using the architecture of surfactant foams to control mass transport of chemical reactants, catalysts, and products and the kinetics with which they react. More specifically, the invention relates to transformations that require both gaseous and liquid components with dissolved or suspended catalysts that are unstable when sheared.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: February 11, 2014
    Assignee: Ensovi, LLC
    Inventors: Carlo Montemagno, David Wendell, Hyo-Jick Choi
  • Publication number: 20130316427
    Abstract: The present invention relates to a method for controlling multi-phase chemical reactions using the architecture of surfactant foams to control mass transport of chemical reactants, catalysts, and products and the kinetics with which they react. More specifically, the invention relates to transformations that require both gaseous and liquid components with dissolved or suspended catalysts that are unstable when sheared.
    Type: Application
    Filed: April 13, 2012
    Publication date: November 28, 2013
    Inventors: Carlo Montemagno, David Wendell, Hyo-Jick Choi
  • Publication number: 20120264185
    Abstract: The present invention relates to a method for controlling multi-phase chemical reactions using the architecture of surfactant foams to control mass transport of chemical reactants, catalysts, and products and the kinetics with which they react. More specifically, the invention relates to transformations that require both gaseous and liquid components with dissolved or suspended catalysts that are unstable when sheared.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 18, 2012
    Inventors: Carlo Montemagno, David Wendell, Hyo-Jick Choi
  • Patent number: 7928169
    Abstract: A CPVC composition having good impact and heat stability includes a siloxane-acrylic copolymer impact modifier and an aluminosilicate zeolite, and a reduced amount of a liquid stabilizer such as a tin compound. Such compositions can be formed into piping for indoor and outdoor water systems including hot water.
    Type: Grant
    Filed: April 14, 2008
    Date of Patent: April 19, 2011
    Assignee: Lubrizol Advanced Materials, Inc.
    Inventors: Girish T. Dalal, Ann Giovannitti-Jensen, Theodore J. Schmitz, David A. Wendell, Mark D. Julius, Robert S. Newby
  • Publication number: 20080188608
    Abstract: A CPVC composition having good impact and heat stability includes a siloxane-acrylic copolymer impact modifier and an aluminosilicate zeolite, and a reduced amount of a liquid stabilizer such as a tin compound. Such compositions can be formed into piping for indoor and outdoor water systems including hot water.
    Type: Application
    Filed: April 14, 2008
    Publication date: August 7, 2008
    Applicant: Lubrizol Advanced Materials, Inc.
    Inventors: Girish T. Dalal, Ann Giovannitti-Jensen, Theodore J. Schmitz, David A. Wendell, Mark D. Julius, Robert S. Newby
  • Publication number: 20060148394
    Abstract: A resilient pad for a disc-type coin processing machine is provided with a first portion with a property having a first value and a second portion with the property having a second value, wherein the first value of the property is different than the second value of the property. The property may include, for example, stiffness or coefficient of friction.
    Type: Application
    Filed: December 10, 2004
    Publication date: July 6, 2006
    Inventors: John Blake, David Wendell
  • Publication number: 20050112311
    Abstract: A CPVC composition having good impact and heat stability includes a siloxane-acrylic copolymer impact modifier and an aluminosilicate zeolite, and a reduced amount of a liquid stabilizer such as a tin compound. Such compositions can be formed into piping for indoor and outdoor water systems including hot water.
    Type: Application
    Filed: November 26, 2003
    Publication date: May 26, 2005
    Inventors: Girish Dalal, Ann Giovannitti-Jensen, Theodore Schmitz, David Wendell, Mark Julius, Robert Newby
  • Publication number: 20050045450
    Abstract: A coin discrimination sensor having an excitation coil and two detector coils arranged to detect eddy currents in a passing coin. The excitation coil is provided a composite waveform formed by adding a low frequency signal (30 KHz) with a high frequency signal (480 KHz). The two detector coils are arranged at different distances from the passing coin, and are calibrated to eliminate the common-mode voltage when no coin is present. As a coin passes by the sensor, eddy currents are induced in the coin which result in phase and amplitude shifts in the low and high frequency components of the detector signal. The low and high frequency components are separated from the detector signal, and their respective phases and amplitudes are ascertained and compared against values stored in a lookup table. These values represent the composition, thickness, and diameter characteristics of known coins, and if the signature of the processed coin does not appear in the lookup table, it can be flagged as an invalid coin.
    Type: Application
    Filed: October 12, 2004
    Publication date: March 3, 2005
    Inventors: Joseph Geib, John Blake, David Wendell, Scott Casanova, David Mecklenburg, Eric Strauts
  • Publication number: 20050040007
    Abstract: A coin discrimination sensor having an excitation coil and two detector coils arranged to detect eddy currents in a passing coin. The excitation coil is provided a composite waveform formed by adding a low frequency signal (30 KHz) with a high frequency signal (480 KHz). The two detector coils are arranged at different distances from the passing coin, and are calibrated to eliminate the common-mode voltage when no coin is present. As a coin passes by the sensor, eddy currents are induced in the coin which result in phase and amplitude shifts in the low and high frequency components of the detector signal. The low and high frequency components are separated from the detector signal, and their respective phases and amplitudes are ascertained and compared against values stored in a lookup table. These values represent the composition, thickness, and diameter characteristics of known coins, and if the signature of the processed coin does not appear in the lookup table, it can be flagged as an invalid coin.
    Type: Application
    Filed: September 30, 2004
    Publication date: February 24, 2005
    Inventors: Joseph Geib, John Blake, David Wendell, Scott Casanova, David Mecklenburg, Erick Strauts
  • Publication number: 20050006197
    Abstract: According to one embodiment of the present invention, a method for determining the denomination of a coin with a disk-type coin processing system comprises moving a coin along a coin path with a rotatable disk, generating an encoder pulse for each incremental movement of the rotatable disk, directing a light beam transverse the coin path, detecting the light beam with a light detector, developing a signal at the light detector indicating the presence of a coin in the coin path, counting a number of encoder pulses occurring while developing the signal at the light detector, and comparing the counted number of encoder pulses to a plurality of stored numbers of encoder pulses corresponding to the particular coin denominations.
    Type: Application
    Filed: March 11, 2004
    Publication date: January 13, 2005
    Inventors: David Wendell, John Blake, Joseph Geib, John Peklo, Richard Mazur, David Mecklenburg
  • Patent number: 4613538
    Abstract: A fusible coating for bonding fabrics to each other comprises a pattern of fusible spots or dots bonded to a fabric substrate. The dots are widely spaced and arranged in a grid-like pattern. The grid-like pattern is skewed at an angle relative to the direction of weave of the fabric substrate.
    Type: Grant
    Filed: September 5, 1985
    Date of Patent: September 23, 1986
    Assignee: Wendell Textiles
    Inventors: David Wendell, Thomas M. Mulgrew, Jr.