Patents by Inventor Douglas T. Corbett

Douglas T. Corbett 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).

  • Integrated vehicle and battery thermal management of an electric excavator
    Patent number: 12139886
    Abstract: An integrated vehicle and battery thermal management system for an electric work machine may include a battery module, a radiator, a fan to move air across the radiator, a battery coolant loop including a coolant pump, a refrigerant loop including a compressor, and a chiller providing heat transfer from the battery coolant loop to the refrigerant loop. A controller is operably connected to the coolant pump, the compressor and the fan and is configured to provide a passive cooling mode, a semi-passive cooling mode, and an active cooling mode, dependent upon monitored temperatures in the system.
    Type: Grant
    Filed: May 16, 2022
    Date of Patent: November 12, 2024
    Assignee: Deere & Company
    Inventors: Steven R. Whiteman, Zakir H. Faruquee, Nitin Dewangan, Manish M. Kute, Douglas T. Corbett, Kishan Trivedi
  • INTEGRATED VEHICLE AND BATTERY THERMAL MANAGEMENT OF AN ELECTRIC EXCAVATOR
    Publication number: 20230366175
    Abstract: An integrated vehicle and battery thermal management system for an electric work machine may include a battery module, a radiator, a fan to move air across the radiator, a battery coolant loop including a coolant pump, a refrigerant loop including a compressor, and a chiller providing heat transfer from the battery coolant loop to the refrigerant loop. A controller is operably connected to the coolant pump, the compressor and the fan and is configured to provide a passive cooling mode, a semi-passive cooling mode, and an active cooling mode, dependent upon monitored temperatures in the system.
    Type: Application
    Filed: May 16, 2022
    Publication date: November 16, 2023
    Inventors: Steven R. Whiteman, Zakir H. Faruquee, Nitin Dewangan, Manish M. Kute, Douglas T. Corbett, Kishan Trivedi
  • Vehicle speed control
    Patent number: 9573583
    Abstract: A method for controlling vehicle speed comprises sensing a position of an operator input, engaging a retarder upon the position falling below a first threshold, modifying a retarding force exerted by the retarder based on the position while the retarder is engaged and the position is below a second threshold, and disengaging the retarder upon the position rising above the second threshold.
    Type: Grant
    Filed: February 27, 2014
    Date of Patent: February 21, 2017
    Assignee: Deere & Company
    Inventors: David F. Rindfleisch, Douglas T. Corbett, Francois Stander, Jeremy B. Shuler
  • VEHICLE SPEED CONTROL
    Publication number: 20150239470
    Abstract: A method for controlling vehicle speed comprises sensing a position of an operator input, engaging a retarder upon the position falling below a first threshold, modifying a retarding force exerted by the retarder based on the position while the retarder is engaged and the position is below a second threshold, and disengaging the retarder upon the position rising above the second threshold.
    Type: Application
    Filed: February 27, 2014
    Publication date: August 27, 2015
    Applicant: Deere & Company
    Inventors: David F. Rindfleisch, Douglas T. Corbett, Francois Stander, Jeremy B. Shuler