Patents by Inventor David G. Reid

David G. Reid 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: 11585428
    Abstract: Embodiments of a cold start lubricant distribution system include a lubricant distribution circuit, which fluidly interconnects first and second actively-lubricated work vehicle assemblies onboard a work vehicle. A flow divider section is included in the lubricant distribution circuit and through which lubricant flow is apportioned between the first and second actively-lubricated work vehicle assemblies. A lubricant supply pump is further located in the lubricant distribution circuit upstream of the flow divider section. The cold start lubricant distribution system further includes a lubricant flow modification assembly operably in a cold start mode. When operating in the cold start mode, the lubricant flow modification assembly reduces a volume of lubricant flow supplied to the first actively-lubricated work vehicle assembly through the flow divider section relative to a volume of lubricant flow supplied to the second actively-lubricated work vehicle assembly through the flow divider section.
    Type: Grant
    Filed: September 8, 2020
    Date of Patent: February 21, 2023
    Assignee: DEERE & COMPANY
    Inventors: David G. Reid, Marcus L. Kuhl, Brett D. McClain
  • Patent number: 11421775
    Abstract: An agricultural vehicle transmission may comprise a housing comprising a bulkhead where the bulkhead may divide the housing into a sump and a reservoir. The bulkhead may comprise an opening configured to fluidly couple the sump and the reservoir. A plurality of transmission gears may be disposed in the reservoir of the housing. The opening in the bulkhead may balance the vehicle transmission system to remove excess oil in the sump and away from the plurality of transmission gears.
    Type: Grant
    Filed: October 31, 2019
    Date of Patent: August 23, 2022
    Assignee: Deere & Company
    Inventors: David G. Reid, Fernando Sandoval
  • Patent number: 11364914
    Abstract: A hydrostatic transmission pressure monitoring system includes a hydrostatic transmission and a pressure sensor data source. The hydrostatic transmission includes, in turn, a transmission casing, a pivoting yoke assembly rotatably mounted in the transmission casing, a hydrostatic pump-motor arrangement containing a hydraulic pump-motor circuit at least partially formed in the pivoting yoke assembly, and a pressure scaling device fluidly coupled to the hydraulic pump-motor circuit. The pressure scaling device is configured to generate a pressure-scaled output signal substantially proportional to a peak circuit pressure within the hydraulic pump-motor circuit. The pressure sensor data source is fluidly coupled to the pressure scaling device and is configured to generate pressure sensor data indicative of the pressure-scaled output signal.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: June 21, 2022
    Assignee: DEERE & COMPANY
    Inventors: Ross E. Jensen, David G. Reid
  • Publication number: 20220074484
    Abstract: Embodiments of a cold start lubricant distribution system include a lubricant distribution circuit, which fluidly interconnects first and second actively-lubricated work vehicle assemblies onboard a work vehicle. A flow divider section is included in the lubricant distribution circuit and through which lubricant flow is apportioned between the first and second actively-lubricated work vehicle assemblies. A lubricant supply pump is further located in the lubricant distribution circuit upstream of the flow divider section. The cold start lubricant distribution system further includes a lubricant flow modification assembly operably in a cold start mode. When operating in the cold start mode, the lubricant flow modification assembly reduces a volume of lubricant flow supplied to the first actively-lubricated work vehicle assembly through the flow divider section relative to a volume of lubricant flow supplied to the second actively-lubricated work vehicle assembly through the flow divider section.
    Type: Application
    Filed: September 8, 2020
    Publication date: March 10, 2022
    Inventors: David G. Reid, Marcus L. Kuhl, Brett D. McClain
  • Publication number: 20220024455
    Abstract: A hydrostatic transmission pressure monitoring system includes a hydrostatic transmission and a pressure sensor data source. The hydrostatic transmission includes, in turn, a transmission casing, a pivoting yoke assembly rotatably mounted in the transmission casing, a hydrostatic pump-motor arrangement containing a hydraulic pump-motor circuit at least partially formed in the pivoting yoke assembly, and a pressure scaling device fluidly coupled to the hydraulic pump-motor circuit. The pressure scaling device is configured to generate a pressure-scaled output signal substantially proportional to a peak circuit pressure within the hydraulic pump-motor circuit. The pressure sensor data source is fluidly coupled to the pressure scaling device and is configured to generate pressure sensor data indicative of the pressure-scaled output signal.
    Type: Application
    Filed: July 22, 2020
    Publication date: January 27, 2022
    Inventors: Ross E. Jensen, David G. Reid
  • Publication number: 20210131551
    Abstract: An agricultural vehicle transmission may comprise a housing comprising a bulkhead where the bulkhead may divide the housing into a sump and a reservoir. The bulkhead may comprise an opening configured to fluidly couple the sump and the reservoir. A plurality of transmission gears may be disposed in the reservoir of the housing. The opening in the bulkhead may balance the vehicle transmission system to remove excess oil in the sump and away from the plurality of transmission gears.
    Type: Application
    Filed: October 31, 2019
    Publication date: May 6, 2021
    Applicant: Deere & Company
    Inventors: David G. Reid, Fernando Sandoval
  • Patent number: 10029562
    Abstract: A power take-off (PTO) transmission unit transfers power between an input shaft and an output shaft. A gear set selectively couples the input shaft to the output shaft. A shift device includes a shift rail with ends forming inner pistons within chambers. The shift rail is configured to translate between first, second, and third positions based on the pressures of the chambers. Inner pistons nest within the outer pistons in the chambers. A shift fork and shift collar translate with the shift rail to, in the first position, engage the gear set such that power is transferred at a first speed ratio; in the second position, engage the gear set such that power is transferred at a second speed ratio; and in the third position, engage the gear set to provide a neutral mode in which the output shaft is free to rotate relative to the input shaft.
    Type: Grant
    Filed: August 26, 2016
    Date of Patent: July 24, 2018
    Assignee: Deere & Company
    Inventors: Eric T. Lammers, David G. Reid, Joel R. Brummer, Brian E. Biles, Roman Cisek, Allan N. Schott
  • Publication number: 20180056782
    Abstract: A power take-off (PTO) transmission unit transfers power between an input shaft and an output shaft. A gear set selectively couples the input shaft to the output shaft. A shift device includes a shift rail with ends forming inner pistons within chambers. The shift rail is configured to translate between first, second, and third positions based on the pressures of the chambers. Inner pistons nest within the outer pistons in the chambers. A shift fork and shift collar translate with the shift rail to, in the first position, engage the gear set such that power is transferred at a first speed ratio; in the second position, engage the gear set such that power is transferred at a second speed ratio; and in the third position, engage the gear set to provide a neutral mode in which the output shaft is free to rotate relative to the input shaft.
    Type: Application
    Filed: August 26, 2016
    Publication date: March 1, 2018
    Inventors: Eric T. Lammers, David G. Reid, Joel R. Brummer, Brian E. Biles, Roman Cisek, Allan N. Schott
  • Patent number: 7721840
    Abstract: A creep steering control system for a utility vehicle is operable from a rearward-facing position. The creep steering control system includes a pivotable actuator alongside a rearward-facing seat that provides electronic output based on the position of the actuator. A linkage is provided between the pivotable actuator and steering wheel behind the seat.
    Type: Grant
    Filed: May 11, 2007
    Date of Patent: May 25, 2010
    Assignee: Deere & Company
    Inventors: Christopher T. McCord, John R. Arthur, Julian Sanchez, David G. Reid
  • Publication number: 20080277190
    Abstract: A creep steering control system for a utility vehicle is operable from a rearward-facing position. The creep steering control system includes a pivotable actuator alongside a rearward-facing seat that provides electronic output based on the position of the actuator. A linkage is provided between the pivotable actuator and steering wheel behind the seat.
    Type: Application
    Filed: May 11, 2007
    Publication date: November 13, 2008
    Inventors: Christopher T. McCord, John R. Arthur, Julian Sanchez, David G. Reid