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).
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Patent number: 11957074Abstract: 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: GrantFiled: December 28, 2021Date of Patent: April 16, 2024Assignee: KUBOTA CORPORATIONInventors: Yuto Fujii, Justin McCallister, Hideki Aoki
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Patent number: 11343963Abstract: 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: GrantFiled: May 9, 2019Date of Patent: May 31, 2022Assignee: KUBOTA CORPORATIONInventors: Yuto Fujii, Justin McCallister
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Publication number: 20220117157Abstract: 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: ApplicationFiled: December 28, 2021Publication date: April 21, 2022Applicant: KUBOTA CORPORATIONInventors: Yuto FUJII, Justin MCCALLISTER, Hideki AOKI
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Patent number: 11246263Abstract: 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: GrantFiled: June 4, 2019Date of Patent: February 15, 2022Assignee: KUBOTA CORPORATIONInventors: Yuto Fujii, Justin McCallister, Hideki Aoki
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Patent number: 11140814Abstract: 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: GrantFiled: May 21, 2018Date of Patent: October 12, 2021Assignee: KUBOTA CORPORATIONInventors: David Spitz, Chad Plavcan, Justin McCallister, Min Sung Kim
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Publication number: 20200383268Abstract: 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: ApplicationFiled: June 4, 2019Publication date: December 10, 2020Applicant: KUBOTA CORPORATIONInventors: Yuto FUJII, Justin MCCALLISTER, Hideki AOKI
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Publication number: 20200352098Abstract: 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: ApplicationFiled: May 9, 2019Publication date: November 12, 2020Applicant: KUBOTA CORPORATIONInventors: Yuto FUJII, Justin MCCALLISTER
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Publication number: 20190359059Abstract: 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: ApplicationFiled: May 22, 2018Publication date: November 28, 2019Applicant: KUBOTA CORPORATIONInventors: David SPITZ, Chad PLAVCAN, Justin MCCALLISTER, Guy TORO
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Publication number: 20190350130Abstract: 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: ApplicationFiled: May 21, 2018Publication date: November 21, 2019Applicant: KUBOTA CORPORATIONInventors: David SPITZ, Chad PLAVCAN, Justin MCCALLISTER, Min Sung KIM