Patents by Inventor John G. Simpson

John G. Simpson 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: 11940438
    Abstract: A method for monitoring fuel quality of a power system used in transport is provided. The method includes a controller of the power system determining that the prime mover is actively running. The method also includes the controller monitoring an output of a water-in-fuel (WIF) sensor configured to measure an amount of water accumulated in a water collection reservoir of a fuel/water separator that separates water from fuel passing there through. Also, the method includes the controller determining an amount of fuel passing through the fuel/water separator. Further, the method includes the controller calculating a fuel quality score of the fuel based on the output of the WIF sensor and the amount of fuel having passed through the fuel/water separator. The method further includes the controller triggering different alerts based on the calculated fuel quality score.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: March 26, 2024
    Assignee: THERMO KING LLC
    Inventors: John G. Simpson, Kyle J. Gleason, Randall S. Burnham, Arthur H. Ambaruch
  • Patent number: 11692495
    Abstract: A generator set for a transport climate control unit is provided that is operable at a first frequency and a second frequency. The generator set includes a generator, a prime mover configured to operate at a first non-zero speed and a second non-zero speed that is less than the first non-zero speed, and a genset controller configured to control operation of the generator set. When operating at the first non-zero speed, the genset controller is configured to monitor a prime mover load parameter to determine whether the prime mover is approaching or has exceeded an overload or stall situation. The genset controller is configured to reduce the speed of the prime mover from the first non-zero speed to the second non-zero speed to prevent the overload or stall situation.
    Type: Grant
    Filed: April 28, 2022
    Date of Patent: July 4, 2023
    Assignee: THERMO KING LLC
    Inventors: John G Simpson, Randy S. Burnham, Kyle J. Gleason
  • Patent number: 11673449
    Abstract: A method for controlling a power system that powers a load is provided. The power system includes a prime mover, an electrical machine coupled to the prime mover, a battery source, an inverter coupled to the battery source, and a power system controller configured to control operation of the power system. The method includes monitoring a power demand on the power system from the load. The method also includes comparing the monitored power demand with a load threshold value. Also, the method includes determining that the monitored power demand is less than the load threshold value. Further, the method includes upon determining that the monitored power demand is less than the load threshold value: inactivating the prime mover, and instructing the battery source with the inverter to supply power to the load.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: June 13, 2023
    Assignee: THERMO KING LLC
    Inventors: Erich A. Lucht, Ross T. Nelson, John G. Simpson
  • Publication number: 20230102325
    Abstract: A method for monitoring fuel quality of a power system used in transport is provided. The method includes a controller of the power system determining that the prime mover is actively running. The method also includes the controller monitoring an output of a water-in-fuel (WIF) sensor configured to measure an amount of water accumulated in a water collection reservoir of a fuel/water separator that separates water from fuel passing there through. Also, the method includes the controller determining an amount of fuel passing through the fuel/water separator. Further, the method includes the controller calculating a fuel quality score of the fuel based on the output of the WIF sensor and the amount of fuel having passed through the fuel/water separator. The method further includes the controller triggering different alerts based on the calculated fuel quality score.
    Type: Application
    Filed: September 30, 2021
    Publication date: March 30, 2023
    Inventors: John G. Simpson, Kyle J. Gleason, Randall S. Burnham, Arthur H. Ambaruch
  • Publication number: 20220349356
    Abstract: A generator set for a transport climate control unit is provided that is operable at a first frequency and a second frequency. The generator set includes a generator, a prime mover configured to operate at a first non-zero speed and a second non-zero speed that is less than the first non-zero speed, and a genset controller configured to control operation of the generator set. When operating at the first non-zero speed, the genset controller is configured to monitor a prime mover load parameter to determine whether the prime mover is approaching or has exceeded an overload or stall situation. The genset controller is configured to reduce the speed of the prime mover from the first non-zero speed to the second non-zero speed to prevent the overload or stall situation.
    Type: Application
    Filed: April 28, 2022
    Publication date: November 3, 2022
    Inventors: John G. Simpson, Randy S. Burnham, Kyle J. Gleason
  • Publication number: 20220203802
    Abstract: A method for controlling a power system that powers a load is provided. The power system includes a prime mover, an electrical machine coupled to the prime mover, a battery source, an inverter coupled to the battery source, and a power system controller configured to control operation of the power system. The method includes monitoring a power demand on the power system from the load. The method also includes comparing the monitored power demand with a load threshold value. Also, the method includes determining that the monitored power demand is less than the load threshold value. Further, the method includes upon determining that the monitored power demand is less than the load threshold value: inactivating the prime mover, and instructing the battery source with the inverter to supply power to the load.
    Type: Application
    Filed: December 30, 2020
    Publication date: June 30, 2022
    Inventors: Erich A. Lucht, Ross T. Nelson, John G. Simpson
  • Patent number: 4656143
    Abstract: A heterogeneous binding assay in which a liquid component and a granular particulate solid phase are incubated together for a predetermined period of time. To prevent unwanted unit gravity sedimentation of the granular particulate solid phase during incubation the density of the liquid component is controlled such that it is substantially equal to the density of the granular particulate solid phase, thus preventing sedimentation. The density may be controlled by adding a density modifying medium such as a colloidal suspension of silica particles coated with polyvinylpyrrolidine. After incubation, the density of the liquid component may be reduced allowing unit gravity sedimentation and hence separation of the solid phase from the liquid component. The assay is particularly applicable to immunoassay (for example radioimmunoassay and immunoradiometric assay). Immunoradiometric assays for human growth hormone, thyroid stimulating hormone and alphafetoprotein are described.
    Type: Grant
    Filed: March 15, 1984
    Date of Patent: April 7, 1987
    Inventors: Terence S. Baker, Stephen R. Abbott, John G. Simpson, John F. Wright, Michael J. Powell
  • Patent number: 4173397
    Abstract: An improved solar concentrator characterized by a plurality of elongated supporting members arranged in substantial horizontal parallelism with the axis thereof intersecting a common curve and a tensioned sheet of flexible reflective material disposed in engaging relation with the supporting members for imparting to the tensioned sheet a catenary configuration.
    Type: Grant
    Filed: November 30, 1977
    Date of Patent: November 6, 1979
    Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
    Inventor: John G. Simpson