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公开(公告)号：US11230820B2
公开(公告)日：2022-01-25
申请号：US16276314
申请日：2019-02-14
Applicant: Caterpillar Inc.
Inventor： Nathaniel K. Harshman , David L. Cox , Benjamin J. Kovalick , Bruce R. Vahling
Abstract: A grading machine includes a machine body, a grading blade supported by a circle, a drawbar connecting the grading blade and the circle to the machine body, and a circle drive system. The circle drive system includes a circle drive motor and a gear box. The gear box is configured to engage with and rotate the circle relative to the drawbar around a circle axis. The circle drive motor includes an axis of rotation that is perpendicular to the circle axis, and the gear box includes an axis of rotation that is parallel to the circle axis.
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公开(公告)号：US20190323203A1
公开(公告)日：2019-10-24
申请号：US15959413
申请日：2018-04-23
Applicant: Caterpillar Inc.
Inventor： Benjamin J. Kovalick , David L. Cox , Bruce R. Vahling
Abstract: A motor grader including a frame and a scarifier system coupled to the frame. The scarifier system includes a first pin member and second pin member both coupled to the frame and interconnected to one another. The scarifier system also includes a first and second arcuate drawbar arms in spaced relation and coupled to the first pin member and a carriage. An actuator is coupled to the first arcuate drawbar arm and the second pin member to rotate the carriage about a pivot axis of the first pin member.
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公开(公告)号：US12252853B2
公开(公告)日：2025-03-18
申请号：US17651333
申请日：2022-02-16
Applicant: Caterpillar Inc.
Inventor： Benjamin J. Kovalick , Bruce Raymond Vahling , Ernest Everett Stoops
Abstract: In some implementations a lift assembly for a snow wing assembly may include a first lifting mechanism, coupled to the motor grader, configured to lift the snow wing assembly a first portion of a bench height associated with a moldboard via a first hydraulic cylinder. The lift assembly may include a second lifting mechanism, coupled to the first lifting mechanism and the moldboard, configured to lift the moldboard of the snow wing assembly a second portion of the bench height via a second hydraulic cylinder. The lift assembly may include one or more valves included in a hydraulic circuit of the first hydraulic cylinder and the second hydraulic cylinder, configured to divert a flow of hydraulic fluid in the hydraulic circuit away from a first stage hydraulic cylinder and to a second stage hydraulic cylinder, based on a pressure value associated with the first stage hydraulic cylinder.
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公开(公告)号：US12209385B2
公开(公告)日：2025-01-28
申请号：US17648918
申请日：2022-01-25
Applicant: Caterpillar Inc.
Inventor： Nathaniel K. Harshman , David L. Cox , Benjamin J. Kovalick , Bruce R. Vahling
Abstract: A grading machine includes a machine body, a grading blade supported by a circle, a drawbar connecting the grading blade and the circle to the machine body, and a circle drive system. The circle drive system includes a circle drive motor and a gear box. The gear box is configured to engage with and rotate the circle relative to the drawbar around a circle axis. The circle drive motor includes an axis of rotation that is perpendicular to the circle axis, and the gear box includes an axis of rotation that is parallel to the circle axis.
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公开(公告)号：US11976716B2
公开(公告)日：2024-05-07
申请号：US16557609
申请日：2019-08-30
Applicant: Caterpillar Inc.
Inventor： Nathaniel K. Harshman , Benjamin J. Kovalick , Nikhil Sharma
CPC classification number: F16H57/029 , E02F3/8152 , E02F9/202 , E02F3/764 , E02F3/844
Abstract: Disclosed is a seal assembly for a grading machine. The grading machine may include a machine body, a blade assembly, and a circle assembly supporting the blade assembly. The circle assembly may include a circle having a plurality of gear teeth. The grading machine may also include a drawbar assembly connecting the circle assembly to the machine body. The seal assembly may include a non-metallic seal component extending circumferentially around an inner circumference of the circle assembly for sealing the plurality of gear teeth.
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Patent Agency Ranking
公开(公告)号：US11505912B2
公开(公告)日：2022-11-22
申请号：US16591872
申请日：2019-10-03
Applicant: Caterpillar Inc.
Inventor： Benjamin J. Kovalick , Lankesh Kumar Mathur Shanmukappa , Nathaniel K. Harshman , Bruce R. Vahling
Abstract: In accordance with one or more aspects, a circle drawbar for a motor grader has a drawbar frame having two elongated members, and a circle frame that has a surface defined by an inner and outer diameter. The circle frame has a circle gear located radially inward of the inner diameter, allowing the circle frame to be rotatable relative to the drawbar frame around an axis of the circle gear. A platform having a top, bottom, and an edge depends from the drawbar frame and covers the circle gear. A debris remover is connected to the platform and removes debris from the surface of the circle frame as the circle frame rotates.
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公开(公告)号：US11268258B2
公开(公告)日：2022-03-08
申请号：US16752800
申请日：2020-01-27
Applicant: Caterpillar Inc.
Inventor： Benjamin J. Kovalick , Rena J. Kanegae , David L. Cox , Nathan G. Tissier , Nathaniel K. Harshman
IPC: E02F3/76
Abstract: A motor grader includes a frame and an extendable scarifier system supported on the frame. The scarifier system includes first and second drawbar arms coupled to the frame. A carriage is coupled to the first and second drawbar arms. The carriage includes a carriage body having first and second lateral ends. A first extension element is attached to the first lateral end of the carriage body and a second extension element is attached to the second lateral end of the carriage body. The first and second extension elements each supporting at least one tooth.
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公开(公告)号：US20190177949A1
公开(公告)日：2019-06-13
申请号：US15839138
申请日：2017-12-12
Applicant: Caterpillar Inc.
Inventor： Nathaniel Keith Harshman , James David Costner, III , David L. Cox , Benjamin J. Kovalick , Tanner Cade Koehne
Abstract: A retention assembly, to slidably retain a blade to a support bracket of a grader machine, includes a yoke, a bearing arrangement, and one or more pins. The yoke is adapted to be coupled to the support bracket, and includes a first sidewall, a second sidewall, and a cavity defined therebetween. The first sidewall defines a first thickness and one or more first bores. The second sidewall defines a second thickness and one or more second bores. The second bores are correspondingly co-axial to the first bores. The bearing arrangement is received within the cavity and is adapted to support the blade for a sliding movement of the blade relative to the bearing arrangement. Further, the pins extend correspondingly through at least one of the first bores or the second bores, and into the cavity to engage and retain the bearing arrangement within the cavity.
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公开(公告)号：US20250146250A1
公开(公告)日：2025-05-08
申请号：US18503867
申请日：2023-11-07
Applicant: Caterpillar Inc.
Inventor： Bruce Raymond VAHLING , Nathaniel K. Harshman , Benjamin J. Kovalick
Abstract: A work attachment for a work machine is disclosed. The work attachment has a moldboard that has moldboard apertures and moldboard fasteners along its bottom surface. The work attachment also has a clamp bar having its own set of apertures to receive the moldboard fasteners for attaching the clamp bar to the moldboard. The clamp bar slides around the moldboard fasteners, along a longitudinal axis of the moldboard, from an open position to a closed position to attach a cutting edge to the moldboard.
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公开(公告)号：US20210230830A1
公开(公告)日：2021-07-29
申请号：US16752800
申请日：2020-01-27
Applicant: Caterpillar Inc.
Inventor： Benjamin J. Kovalick , Rena J. Kanegae , David L. Cox , Nathan G. Tissier , Nathaniel K. Harshman
IPC: E02F3/76
Abstract: A motor grader is disclosed that includes a frame and an extendable scarifier system supported on the frame. The scarifier system includes first and second drawbar arms coupled to the frame. A carriage is coupled to the first and second drawbar arms. The carriage includes a carriage body having first and second lateral ends. A first extension element is attached to the first lateral end of the carriage body and a second extension element is attached to the second lateral end of the carriage body. The first and second extension elements each supporting at least one tooth.
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