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：USD920401S1

公开(公告)日：2021-05-25

申请号：US29670396

申请日：2018-11-15

Applicant: CATERPILLAR INC.

Designer： Thomas M. Congdon ,  David B. Parzynski, Jr. ,  Nathan Bjerke

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.

公开(公告)号：US09938695B2

公开(公告)日：2018-04-10

申请号：US15143945

申请日：2016-05-02

Applicant: Caterpillar Inc.

Inventor： Nathan R. Bjerke ,  Thomas M. Congdon

IPC: E02F9/28

CPC classification number: E02F9/2816 ,  E02F9/2808 ,  E02F9/2825 ,  E02F9/2833 ,  E02F9/2841 ,  E02F9/2883

Abstract: A shroud for a work tool is disclosed. The shroud may have a tip portion. The tip portion may have a tip extending from a shroud proximal end to a tip end disposed between the shroud proximal end and a shroud distal end. The tip portion may further have an upper leg extending from the tip end to an upper leg distal end. The tip portion may also have a lower leg extending from the tip end to a lower leg distal end. The lower leg may be spaced apart from the upper leg to form an opening between the upper leg and the lower leg. The shroud may have an attachment portion attached to the upper leg. The attachment portion may extend from adjacent the tip end to the shroud distal end.

公开(公告)号：US09863119B2

公开(公告)日：2018-01-09

申请号：US14936322

申请日：2015-11-09

Applicant: Caterpillar Inc.

Inventor： Thomas M. Congdon ,  Susan Graham ,  Bart A. Fisher

IPC: E02F3/815 ,  E02F9/28

CPC classification number: E02F3/8152 ,  E02F9/2883

Abstract: A wear member for attachment to a surface of a machine is provided, the wear member a body having an outer layer and a base layer. The outer layer including a plurality of channels formed in an outer surface. The base layer is attached to an inner surface of the outer layer. The base layer is divided into a plurality of base layer pieces, each of the plurality of base layer pieces including at least one interfacing edge. The plurality of base layer pieces are assembled together such that each interfacing edge of each of the plurality of base layer pieces is opposite an interfacing edge of another of the plurality of base layer pieces so as to define at least one gap therebetween.