公开(公告)号：US11746506B2

公开(公告)日：2023-09-05

申请号：US17389495

申请日：2021-07-30

Applicant: Caterpillar Inc.

Inventor： David B. Parzynski ,  Thomas M. Congdon

IPC: E02F9/28 ,  E02F3/815 ,  B28D1/18

CPC classification number: E02F9/2825 ,  E02F3/8152 ,  E02F9/2816 ,  E02F9/2833 ,  B28D1/188

Abstract: A system for use in securing bits against rotation in a motor grader may include a bit, with the bit having a shank. The shank may include a locking portion. The system may include an adapter board including a hole configured to receive the shank of the bit. The system may also include an anti-rotation plate configured to engage the locking portion of the shank of the bit such that the anti-rotation plate constrains the bit against rotation with respect to the adapter board.

公开(公告)号：US10590632B2

公开(公告)日：2020-03-17

申请号：US15864171

申请日：2018-01-08

Applicant: Caterpillar Inc.

Inventor： David B. Parzynski ,  Thomas M. Congdon

IPC: E02F9/28 ,  E02F3/815 ,  B28D1/18

Abstract: A system for use in securing bits against rotation in a motor grader may include a bit, with the bit having a shank. The shank may include a locking portion. The system may include an adapter board including a hole configured to receive the shank of the bit. The system may also include an anti-rotation plate configured to engage the locking portion of the shank of the bit such that the anti-rotation plate constrains the bit against rotation with respect to the adapter board.

公开(公告)号：US11149416B2

公开(公告)日：2021-10-19

申请号：US16748961

申请日：2020-01-22

Applicant: Caterpillar Inc.

Inventor： David B. Parzynski ,  Thomas M. Congdon

IPC: E02F9/28 ,  E02F3/815 ,  B28D1/18

Abstract: A system for use in securing bits against rotation in a motor grader may include a bit, with the bit having a shank. The shank may include a locking portion. The system may include an adapter board including a hole configured to receive the shank of the bit. The system may also include an anti-rotation plate configured to engage the locking portion of the shank of the bit such that the anti-rotation plate constrains the bit against rotation with respect to the adapter board.

公开(公告)号：US20180195255A1

公开(公告)日：2018-07-12

申请号：US15864171

申请日：2018-01-08

Applicant: Caterpillar Inc.

Inventor： David B. Parzynski ,  Thomas M. Congdon

IPC: E02F9/28 ,  E02F3/815

Abstract: The present system is disclosed for use in securing bits against rotation in a motor grader. The bit securing system has at least two bits, and each bit has a respective shank. Each shank has a respective locking portion. An adapter board has at least two holes, and each respective hole is configured to receive a respective shank of a bit. An anti-rotation plate is configured to engage the respective locking portions of the shanks of the bits such that the anti-rotation plate constrains the bits against rotation with respect to the adapter board.