Patents by Inventor Curt A. Elpers

Curt A. Elpers 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: 11903338
    Abstract: Systems and method for linearly displacing an object, such as a cutter or other component, in response to a rotation of a pivotable arm are disclosed. The systems and method encompass one or more actuators, such as hydraulic cylinders, to pivot a pivotable arm pivotable about an axis. A flexible component coupled to an end of the pivotable arm is displaced in response to the rotational motion of the pivotable arm. Movement of the flexible component in response to rotation of the pivotable arm is converted into linear motion via curved surface on which the flexible component rides. The pivotable arm is rotated in response to actuation of one or more actuators, such as one or more hydraulic cylinders, coupled to the pivotable arm.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: February 20, 2024
    Assignee: Moline, IL
    Inventors: Todd M. Verhoef, Curt A. Elpers, Logan K. Trueblood
  • Patent number: 11674589
    Abstract: A vehicle includes a frame, at least one traction device coupled to the frame for facilitating movement of the vehicle, an implement coupled to the frame and configured to perform a work operation, a gearbox, a hydraulic system having a hydraulic reservoir, and an oil cooling system configured to cool the gearbox and the hydraulic system. The oil cooling system includes first and second circuits for a cooling oil, and a crossover circuit. The first circuit includes the gearbox and a first oil-to-air cooler configured to cool the cooling oil from the gearbox. The second circuit includes the hydraulic reservoir and a second oil-to-air cooler for cooling the cooling oil from the hydraulic reservoir. The crossover circuit includes the gearbox and the hydraulic reservoir and is configured to exchange the cooling oil between the gearbox and the hydraulic reservoir to provide heat transfer between the first and second circuits.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: June 13, 2023
    Assignee: Deere & Company
    Inventors: Alan D. Sheidler, Curt A. Elpers, Ryan S. Herlyn
  • Patent number: 11174926
    Abstract: A vehicle transmission may include a differential comprising a carrier and at least one torque receiver fixed to the carrier, a first torque input having a first torque transmitter directly connected to with the at least one torque receiver of the carrier, and a second torque input having a second torque transmitter directly connected to the at least one torque receiver of the carrier.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: November 16, 2021
    Assignee: Deere & Company
    Inventors: Curt A. Elpers, Nicholas R. Borkgren
  • Publication number: 20210062909
    Abstract: A vehicle includes a frame, at least one traction device coupled to the frame for facilitating movement of the vehicle, an implement coupled to the frame and configured to perform a work operation, a gearbox, a hydraulic system having a hydraulic reservoir, and an oil cooling system configured to cool the gearbox and the hydraulic system. The oil cooling system includes first and second circuits for a cooling oil, and a crossover circuit. The first circuit includes the gearbox and a first oil-to-air cooler configured to cool the cooling oil from the gearbox. The second circuit includes the hydraulic reservoir and a second oil-to-air cooler for cooling the cooling oil from the hydraulic reservoir. The crossover circuit includes the gearbox and the hydraulic reservoir and is configured to exchange the cooling oil between the gearbox and the hydraulic reservoir to provide heat transfer between the first and second circuits.
    Type: Application
    Filed: August 30, 2019
    Publication date: March 4, 2021
    Inventors: Alan D. Sheidler, Curt A. Elpers, Ryan S. Herlyn
  • Publication number: 20200173528
    Abstract: A vehicle transmission may include a differential comprising a carrier and at least one torque receiver fixed to the carrier, a first torque input having a first torque transmitter directly connected to with the at least one torque receiver of the carrier, and a second torque input having a second torque transmitter directly connected to the at least one torque receiver of the carrier.
    Type: Application
    Filed: November 29, 2018
    Publication date: June 4, 2020
    Inventors: Curt A. Elpers, Nicholas R. Borkgren