Patents by Inventor Justin MCCALLISTER

Justin MCCALLISTER 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: 11957074
    Abstract: A work vehicle including a vehicle body, a pair of left and right driving wheels that movably support the vehicle body, a pair of motors capable of rotatably driving the left and right driving wheels respectively, a pair of maneuvering levers pivotally supported to the vehicle body to be pivotable about a horizontal axis extending in a vehicle body transverse direction and capable of adjusting rotational speeds of the left and right driving wheels respectively, and a pair of solid dynamic vibration absorbing portions supported to respective free end portions of the maneuvering levers and capable of suppressing vibrations of the maneuvering levers, wherein each solid dynamic vibration absorbing portion of the pair of solid dynamic vibration absorbing portions includes a weight within an elastic body, wherein the weight and the elastic body have equal longitudinal lengths.
    Type: Grant
    Filed: December 28, 2021
    Date of Patent: April 16, 2024
    Assignee: KUBOTA CORPORATION
    Inventors: Yuto Fujii, Justin McCallister, Hideki Aoki
  • Patent number: 11343963
    Abstract: A stand-on lawnmower includes a vehicle body frame, a steering mechanism operable for maneuvering the lawnmower, and a platform assembly for an operator operating the steering mechanism. The platform assembly includes a stationary base mounted to the vehicle body frame, a platform supported to the stationary base and a swing mechanism provided between the stationary base and the platform. In the platform, a footrest face for the operator is formed. The swing mechanism includes a rolling mechanism for causing rolling of the footrest face and a pitching mechanism for causing pitching of the footrest face.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: May 31, 2022
    Assignee: KUBOTA CORPORATION
    Inventors: Yuto Fujii, Justin McCallister
  • Publication number: 20220117157
    Abstract: A work vehicle including a vehicle body, a pair of left and right driving wheels that movably support the vehicle body, a pair of motors capable of rotatably driving the left and right driving wheels respectively, a pair of maneuvering levers pivotally supported to the vehicle body to be pivotable about a horizontal axis extending in a vehicle body transverse direction and capable of adjusting rotational speeds of the left and right driving wheels respectively, and a pair of solid dynamic vibration absorbing portions supported to respective free end portions of the maneuvering levers and capable of suppressing vibrations of the maneuvering levers, wherein each solid dynamic vibration absorbing portion of the pair of solid dynamic vibration absorbing portions includes a weight within an elastic body, wherein the weight and the elastic body have equal longitudinal lengths.
    Type: Application
    Filed: December 28, 2021
    Publication date: April 21, 2022
    Applicant: KUBOTA CORPORATION
    Inventors: Yuto FUJII, Justin MCCALLISTER, Hideki AOKI
  • Patent number: 11246263
    Abstract: A work vehicle includes a vehicle body, a pair of left and right driving wheels that movably support the vehicle body, a pair of motors capable of rotatably driving the left and right driving wheels respectively, a pair of maneuvering levers pivotally supported to the vehicle body to be pivotable about a horizontal axis extending in a vehicle body transverse direction and capable of adjusting rotational speeds respectively of the left and right driving wheels and a pair of dynamic vibration absorbing portions supported to respective free end portions of the maneuvering levers and capable of suppressing vibrations of the maneuvering levers.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: February 15, 2022
    Assignee: KUBOTA CORPORATION
    Inventors: Yuto Fujii, Justin McCallister, Hideki Aoki
  • Patent number: 11140814
    Abstract: A work vehicle includes a detection signal processing section for processing detection signals from a group of sensors mounted on a vehicle body and outputting detection result data and a display unit for displaying the detection result data. The display unit includes a first displaying area for displaying time changing data included in the detection result data, the time changing data changing over time, a second displaying area for displaying safety data included in the detection result data, the safety data relating to safety confirmation, and a third displaying area for displaying alarm-relating data included in the detection result data.
    Type: Grant
    Filed: May 21, 2018
    Date of Patent: October 12, 2021
    Assignee: KUBOTA CORPORATION
    Inventors: David Spitz, Chad Plavcan, Justin McCallister, Min Sung Kim
  • Publication number: 20200383268
    Abstract: A work vehicle includes a vehicle body, a pair of left and right driving wheels that movably support the vehicle body, a pair of motors capable of rotatably driving the left and right driving wheels respectively, a pair of maneuvering levers pivotally supported to the vehicle body to be pivotable about a horizontal axis extending in a vehicle body transverse direction and capable of adjusting rotational speeds respectively of the left and right driving wheels and a pair of dynamic vibration absorbing portions supported to respective free end portions of the maneuvering levers and capable of suppressing vibrations of the maneuvering levers.
    Type: Application
    Filed: June 4, 2019
    Publication date: December 10, 2020
    Applicant: KUBOTA CORPORATION
    Inventors: Yuto FUJII, Justin MCCALLISTER, Hideki AOKI
  • Publication number: 20200352098
    Abstract: A stand-on lawnmower includes a vehicle body frame, a steering mechanism operable for maneuvering the lawnmower, and a platform assembly for an operator operating the steering mechanism. The platform assembly includes a stationary base mounted to the vehicle body frame, a platform supported to the stationary base and a swing mechanism provided between the stationary base and the platform. In the platform, a footrest face for the operator is formed. The swing mechanism includes a rolling mechanism for causing rolling of the footrest face and a pitching mechanism for causing pitching of the footrest face.
    Type: Application
    Filed: May 9, 2019
    Publication date: November 12, 2020
    Applicant: KUBOTA CORPORATION
    Inventors: Yuto FUJII, Justin MCCALLISTER
  • Publication number: 20190359059
    Abstract: A work vehicle includes a main key having an ON position for enabling electric power supply to electric devices and an OFF position for stopping the electric power supply to the electric devices, an engine information acquiring section configured to acquire engine information including a fuel supply amount from an engine controlling section that calculates the fuel supply amount to the engine, a momentary fuel consumption amount calculating section configured to calculate a momentary fuel consumption amount based on the engine information, a total fuel consumption amount calculating section configured to calculate, based on the engine information, a total fuel consumption amount which is a total amount of fuel used from an ON state to an OFF state of the main key, and a display controlling section configured to selectively display the momentary fuel consumption amount and the total fuel consumption amount on a display unit.
    Type: Application
    Filed: May 22, 2018
    Publication date: November 28, 2019
    Applicant: KUBOTA CORPORATION
    Inventors: David SPITZ, Chad PLAVCAN, Justin MCCALLISTER, Guy TORO
  • Publication number: 20190350130
    Abstract: A work vehicle includes a detection signal processing section for processing detection signals from a group of sensors mounted on a vehicle body and outputting detection result data and a display unit for displaying the detection result data. The display unit includes a first displaying area for displaying time changing data included in the detection result data, the time changing data changing over time, a second displaying area for displaying safety data included in the detection result data, the safety data relating to safety confirmation, and a third displaying area for displaying alarm-relating data included in the detection result data.
    Type: Application
    Filed: May 21, 2018
    Publication date: November 21, 2019
    Applicant: KUBOTA CORPORATION
    Inventors: David SPITZ, Chad PLAVCAN, Justin MCCALLISTER, Min Sung KIM