Patents by Inventor John A. Dighton

John A. Dighton 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).

  • Publication number: 20240415058
    Abstract: A cleaning arrangement for separating a billet material from an extraneous plant matter in a sugarcane harvester includes a cleaning chamber defining an inlet for the billet material and the extraneous plant matter, a first outlet for the extraneous plant matter, and a second outlet for the billet material. A fan is positioned within the cleaning chamber and configured to generate an airflow to direct the extraneous plant matter toward the first outlet. A billet deflector is located between the inlet and the first outlet and configured to direct the billet material toward the second outlet. An actuation mechanism is coupled to the billet deflector and is controllable to adjust the position of the billet deflector. A sensor is configured to generate a signal. A controller is programmed to activate the actuation mechanism to adjust the position of the billet deflector based on the signal.
    Type: Application
    Filed: June 15, 2023
    Publication date: December 19, 2024
    Inventors: Blain J. Cazenave, John A. Dighton
  • Patent number: 12102033
    Abstract: A harvester including an inlet configured to receive a crop including a stalk, a blade configured to cut the crop into a billet, a sensor configured to detect a three-dimensional appearance of at least a portion of the billet and generate a signal associated with the three-dimensional appearance of the at least a portion of the billet, and a control system having a processor, a memory, and a human-machine interface. The control system is configured to receive the signal from the sensor and programmed to 1) analyze the three-dimensional appearance of the at least a portion of the billet, 2) classify the three-dimensional appearance using an indicator of cut quality and 3) index the indicator of cut quality into the memory.
    Type: Grant
    Filed: November 13, 2020
    Date of Patent: October 1, 2024
    Assignee: DEERE & COMPANY
    Inventors: Bryan E. Dugas, John A. Dighton, Peter A. Johnson
  • Publication number: 20240292780
    Abstract: A sugarcane harvester to cut sugarcane from a sugarcane field including a chopping system. The chopping system includes a first chopper having a plurality of first blades and a second chopper having a plurality of second blades, wherein the first chopper and the second chopper rotate about their respective axes of rotation to cooperatively cut sugarcane stalk into billets. A motor operatively connected to the first chopper and to the second chopper rotates the first chopper and the second chopper. A chopper timing actuator is configured to continuously adjust a time of interference between a first blade of the plurality of first blades with respect to a second blade of the plurality of second blades, wherein the continuous adjustment maintains a time period of the interference between the first blade and the second blade as the first chopper and the second chopper cut the sugarcane stalk into billets.
    Type: Application
    Filed: February 1, 2024
    Publication date: September 5, 2024
    Inventors: John A. Dighton, Guy Burch, Herman E. Kelwaski
  • Patent number: 11974520
    Abstract: A control system for a harvester includes a plurality of actuators, each of which moves of one of the following: a knockdown roller for pressing crops down, a side knife for cutting crops along a substantially vertical plane, a base cutter for cutting crops along a substantially horizontal plane, and a crop divider configured to separate crops into rows. The control system also includes a controller in electrical communication with each actuator of the plurality of actuators. The controller receives a signal indicative of an operational position of at least one actuator of the plurality of actuators, and sends a signal to the at least one actuator of the plurality of actuators to initiate movement of the at least one actuator of the plurality of actuators in response to the received signal.
    Type: Grant
    Filed: September 14, 2020
    Date of Patent: May 7, 2024
    Assignee: Deere & Company
    Inventors: Rahul Gunda, Bryan E. Dugas, John A. Dighton, Peter A. Johnson
  • Publication number: 20240099191
    Abstract: An agricultural harvester for harvesting a crop. The agricultural harvester includes a frame and a crop gatherer extending from and being moveably coupled to the frame. The crop gatherer includes one of a crop divider, a crop cutter, or a crop remover. A radar assembly is operatively connected to the crop gatherer, wherein the radar assembly transmits electromagnetic waves toward a ground to identify a ground level. A controller is operatively connected to the radar assembly and the crop gatherer, wherein the controller receives the identified ground level from the radar assembly and adjusts a height of the crop gatherer with respect to the ground.
    Type: Application
    Filed: December 11, 2023
    Publication date: March 28, 2024
    Inventors: Scott N. Clark, John A. Dighton
  • Publication number: 20240016093
    Abstract: A sugarcane harvester for harvesting sugarcane including a cutting blade to cut sugarcane. The cutting blade is adjustably supported by the sugarcane harvester to cut the sugarcane at a desired height. A radar assembly is coupled to the sugarcane harvester and transmits electromagnetic waves toward a ground surface, wherein reflected electromagnetic waves identify a ground level of the ground surface which is used to adjust a height of the cutting blade with respect to the ground surface. A controller is operatively connected to the radar assembly and to the cutting blade. The controller is adapted to receive the ground level identified by the radar assembly and adjusts a position of the cutting blade with respect to the ground surface based on the identified ground level.
    Type: Application
    Filed: July 13, 2022
    Publication date: January 18, 2024
    Inventor: John A. Dighton
  • Patent number: 11832555
    Abstract: A harvester includes a feed system operable at a feed speed and configured to feed a crop towards a blade. The blade is configured to cut the crop into crop billet and is operable at a cutting speed. The harvester further includes an optical sensor configured to generate a signal corresponding to a length of the crop billet and a control system with a processor, a memory, and a human-machine interface. The control system is configured to receive the signal and programmed to adjust one or both of the cutting speed or the feed speed based on the signal.
    Type: Grant
    Filed: November 30, 2020
    Date of Patent: December 5, 2023
    Assignee: DEERE & COMPANY
    Inventors: Alexander C. Reiners, John A. Dighton, Ana E. Carbunaru
  • Patent number: 11812694
    Abstract: A harvester including a mono-camera having a first field of view, where the camera outputs a first image representative of the first field of view, and where the first image is a two-dimensional representation of the first field of view. The harvester also includes a controller in operable communication with the mono-camera, where the controller establishes a second two-dimensional reference frame fixed relative to the first field of view, where the controller identifies a reference point within the first image, where the controller locates the reference point within the second two-dimensional reference frame, and where the controller calculates the location of the reference point relative to the first, three-dimensional reference frame based on the position of the reference point within the second two-dimensional reference frame.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: November 14, 2023
    Assignee: Deere & Company
    Inventors: John A. Dighton, Bryan E. Dugas, Rahul Gunda, Peter A. Johnson
  • Patent number: 11788563
    Abstract: Systems and methods for determining a pre-charge gas pressure in a gas-charged hydraulic accumulator are disclosed. For example, systems and methods for determining pre-charged gas pressure of a gas-charged hydraulic accumulator included as part of a vehicle are disclosed. Further, the present disclosure provides for determining a pre-charge gas pressure of a gas-charged hydraulic accumulator using a position sensor. The accumulator may form part of a hydraulic system used to move one part of the vehicle relative to another.
    Type: Grant
    Filed: December 18, 2020
    Date of Patent: October 17, 2023
    Assignee: Deere & Company
    Inventors: Alexander C. Reiners, John A. Dighton, Peter A. Johnson
  • Publication number: 20230270043
    Abstract: A method of controlling an agricultural harvesting machine having a harvesting device configured to engage and cut crop on a field. The method includes receiving an indication of field topography in a first area of the field prior to the first area being harvested, controlling a position of the harvesting device to harvest the crop in the first area based on the indication of field topography in the first area, receiving in-situ data from the first area of the field after the first area is harvested by the harvesting device, receiving an indication of field topography in a second area of the field prior to the second area being harvested, and controlling the position of the harvesting device to harvest the crop in the second area based on the in-situ data and the indication of field topography in the second area.
    Type: Application
    Filed: February 28, 2022
    Publication date: August 31, 2023
    Inventors: Bryan E. DUGAS, Mark S. LOUVIERE, John A. DIGHTON
  • Publication number: 20230148473
    Abstract: A cleaning arrangement for separating a billet material from an extraneous plant matter in a sugarcane harvester includes a cleaning chamber defining an inlet for the billet material and the extraneous plant matter, a first outlet for the extraneous plant matter, and a second outlet for the billet material. A fan is positioned within the cleaning chamber and configured to generate an airflow to direct the extraneous plant matter toward the first outlet. A billet deflector is located between the inlet and the first outlet and configured to direct the billet material toward the second outlet. An actuation mechanism is coupled to the billet deflector and is controllable to adjust the position of the billet deflector. A sensor is configured to generate a signal. A controller is programmed to activate the actuation mechanism to adjust the position of the billet deflector based on the signal.
    Type: Application
    Filed: November 16, 2021
    Publication date: May 18, 2023
    Inventors: Blain J. Cazenave, Dusk S. Mixon, John A. Dighton
  • Patent number: 11528846
    Abstract: A harvester includes a main frame supported on a ground surface for transport along the ground surface, an inlet for receiving a crop, and a separator for separating the crop into a first portion and a second portion. The separator includes a hood having an outlet, and a fan operable to generate an airflow through the outlet. The hood of the separator is movable relative to the main frame between a transport position and a harvest position. In the transport position, the hood is positioned at a first height above the ground surface. In the harvest position, the hood is positioned at a second height, greater than the first height, above the ground surface.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: December 20, 2022
    Assignee: Deere & Company
    Inventors: Matthew Hansen, Dusk Mixon, John Dighton, Jeffrey Simoneaux, Eric Richard, Beau Downey, Marcie Words, Andrew Brauning, Blain Cazenave
  • Patent number: 11470780
    Abstract: A bearing coupler assembly that has a bearing housing sized to at least partially receive a bearing assembly, the bearing housing defining a bearing axis therethrough, a shaft positioned at least partially through the bearing housing along the bearing axis, the shaft defining a shaft lip and a fastener end, the bearing assembly coupling the shaft to the bearing housing so the shaft can rotate about the bearing axis relative to the bearing housing, a fastener configured to be coupled to the fastener end of the shaft, a tone wheel positioned axially along the bearing axis between the fastener and the bearing assembly, the tone wheel having at least one indicator, a sensor coupled to the bearing housing and configured to identify when the indicator passes thereby.
    Type: Grant
    Filed: May 24, 2021
    Date of Patent: October 18, 2022
    Assignee: DEERE & COMPANY
    Inventors: Alexander C. Reiners, John A. Dighton, Guy Burch, Blake C. Gettig, Surfraj Fattepur, Todd J. Rodrigue
  • Publication number: 20220167557
    Abstract: A harvester includes a feed system operable at a feed speed and configured to feed a crop towards a blade. The blade is configured to cut the crop into crop billet and is operable at a cutting speed. The harvester further includes an optical sensor configured to generate a signal corresponding to a length of the crop billet and a control system with a processor, a memory, and a human-machine interface. The control system is configured to receive the signal and programmed to adjust one or both of the cutting speed or the feed speed based on the signal.
    Type: Application
    Filed: November 30, 2020
    Publication date: June 2, 2022
    Inventors: Alexander C. Reiners, John A. Dighton, Ana E. Carbunaru
  • Publication number: 20220151139
    Abstract: A harvester including an inlet configured to receive a crop including a stalk, a blade configured to cut the crop into a billet, a sensor configured to detect a three-dimensional appearance of at least a portion of the billet and generate a signal associated with the three-dimensional appearance of the at least a portion of the billet, and a control system having a processor, a memory, and a human-machine interface. The control system is configured to receive the signal from the sensor and programmed to 1) analyze the three-dimensional appearance of the at least a portion of the billet, 2) classify the three-dimensional appearance using an indicator of cut quality and 3) index the indicator of cut quality into the memory.
    Type: Application
    Filed: November 13, 2020
    Publication date: May 19, 2022
    Inventors: Bryan E. Dugas, John A. Dighton, Peter A. Johnson
  • Patent number: 11224170
    Abstract: A hood assembly for a fan that has a base section, a discharge nozzle pivotally coupled to the base section, and a motor coupled between the base section and the discharge nozzle. Wherein, the discharge nozzle is repositionable with the motor to alter the orientation of the discharge nozzle relative to the base section.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: January 18, 2022
    Assignee: DEERE & COMPANY
    Inventors: John A. Dighton, Matthew J. Hansen
  • Publication number: 20210332836
    Abstract: Systems and methods for determining a pre-charge gas pressure in a gas-charged hydraulic accumulator are disclosed. For example, systems and methods for determining pre-charged gas pressure of a gas-charged hydraulic accumulator included as part of a vehicle are disclosed. Further, the present disclosure provides for determining a pre-charge gas pressure of a gas-charged hydraulic accumulator using a position sensor. The accumulator may form part of a hydraulic system used to move one part of the vehicle relative to another.
    Type: Application
    Filed: December 18, 2020
    Publication date: October 28, 2021
    Inventors: ALEXANDER C. REINERS, JOHN A. DIGHTON, PETER A. JOHNSON
  • Patent number: 11118605
    Abstract: An exemplary method generally includes charging hydraulic fluid into or out of a cavity of an accumulator at a controlled flowrate, detecting movement of a machine component from a first position toward a second position, determining an idle time spanning from a start of the charging to detection of the movement of the machine component, and determining a pre-charge of the accumulator based upon the idle time and a flowrate value of the controlled flowrate.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: September 14, 2021
    Assignee: DEERE & COMPANY
    Inventors: Alexander Reiners, John A. Dighton, Peter A. Johnson
  • Publication number: 20210274712
    Abstract: A bearing coupler assembly that has a bearing housing sized to at least partially receive a bearing assembly, the bearing housing defining a bearing axis therethrough, a shaft positioned at least partially through the bearing housing along the bearing axis, the shaft defining a shaft lip and a fastener end, the bearing assembly coupling the shaft to the bearing housing so the shaft can rotate about the bearing axis relative to the bearing housing, a fastener configured to be coupled to the fastener end of the shaft, a tone wheel positioned axially along the bearing axis between the fastener and the bearing assembly, the tone wheel having at least one indicator, a sensor coupled to the bearing housing and configured to identify when the indicator passes thereby.
    Type: Application
    Filed: May 24, 2021
    Publication date: September 9, 2021
    Inventors: Alexander C. Reiners, John A. Dighton, Guy Burch, Blake C. Gettig, Surfraj Fattepur, Todd J. Rodrigue
  • Patent number: 11044848
    Abstract: A bearing coupler assembly that has a bearing housing sized to at least partially receive a bearing assembly, the bearing housing defining a bearing axis therethrough, a shaft positioned at least partially through the bearing housing along the bearing axis, the shaft defining a shaft lip and a fastener end, the bearing assembly coupling the shaft to the bearing housing so the shaft can rotate about the bearing axis relative to the bearing housing, a fastener configured to be coupled to the fastener end of the shaft, a tone wheel positioned axially along the bearing axis between the fastener and the bearing assembly, the tone wheel having at least one indicator, a sensor coupled to the bearing housing and configured to identify when the indicator passes thereby.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: June 29, 2021
    Assignee: DEERE & COMPANY
    Inventors: Alexander C. Reiners, John A. Dighton, Guy Burch, Blake C. Gettig, Surfraj Fattepur, Todd J. Rodrigue