公开(公告)号：US20210087780A1

公开(公告)日：2021-03-25

申请号：US17110442

申请日：2020-12-03

Applicant: Caterpillar Inc.

Inventor： David Bruno Parzynski, JR. ,  Thomas Marshall Congdon ,  Tobias James Toennies

IPC: E02F3/815 ,  E02F9/28

Abstract: A blade assembly includes an adapter board including a lower tool bit attachment portion, terminating in a lower adapter board free end, the lower adapter board free end defining a bottom surface defining a plurality of shank receiving bores. A plurality of bushings are disposed in a corresponding one of the plurality of shank receiving bores.

公开(公告)号：US20210040707A1

公开(公告)日：2021-02-11

申请号：US17077159

申请日：2020-10-22

Applicant: Caterpillar Inc.

Inventor： David Bruno Parzynski, JR. ,  Thomas Marshall Congdon ,  Susan Marie Graham

IPC: E02F3/815

Abstract: An adapter board defines an upper adapter board attachment portion, and a lower tool bit attachment portion. The upper adapter board attachment portion includes a first peak surface and a second peak surface, the first peak surface and the second peak surface forming a first valley between the first peak surface and the second peak surface.

公开(公告)号：US20200141092A1

公开(公告)日：2020-05-07

申请号：US16180958

申请日：2018-11-05

Applicant: Caterpillar Inc.

Inventor： David Bruno Parzynski, JR. ,  Thomas Marshall Congdon

IPC: E02F9/28

Abstract: A tool bit is disclosed. The tool bit includes a working portion at a distal end of the tool bit, a threaded portion at a proximal end of the tool bit, a shank extending along a longitudinal axis of the tool bit between the working portion and the threaded portion, and an anti-rotation receiving hole located on the threaded portion. The anti-rotation receiving hole extends through the threaded portion transverse to the longitudinal axis. The threaded portion of the tool bit is configured to engage with threads of a nut, and the anti-rotation receiving hole is configured to receive a pin inserted through the nut.

公开(公告)号：US20190316325A1

公开(公告)日：2019-10-17

申请号：US15952548

申请日：2018-04-13

Applicant: Caterpillar Inc.

Inventor： David Bruno Parzynski, JR. ,  Thomas Marshall Congdon

IPC: E02F9/28 ,  E02F3/815

Abstract: A tool bit comprises a shank portion defining a longitudinal axis; and a working portion. The working portion includes at least a first arcuate surface disposed longitudinally adjacent the shank portion.

公开(公告)号：US20240011257A1

公开(公告)日：2024-01-11

申请号：US18338239

申请日：2023-06-20

Applicant: Caterpillar Inc.

Inventor： Corey Michael Wells ,  Eric T. Sinn ,  Brandon Hammig McCaffrey ,  William Jay Ulrich, IV ,  David Bruno Parzynski, JR.

IPC: E02F9/28

CPC classification number: E02F9/2833 ,  E02F9/2825

Abstract: A lock assembly for attaching a wear member to a base includes a retaining block with a spring attached to the retaining block that fits into an aperture of the base. A lock pin fits into the aperture of the wear member, and the aperture of the retaining block, retaining the wear member onto the base. The lock pin engages the spring that prevents unintentional rotation of the lock pin so that the lock pin is trapped in the aperture of the wear member, preventing its unintentional removal.

公开(公告)号：US20230340762A1

公开(公告)日：2023-10-26

申请号：US17729360

申请日：2022-04-26

Applicant: Caterpillar Inc.

Inventor： David Bruno Parzynski, JR. ,  Thomas Marshall Congdon ,  Corey Michael Wells

IPC: E02F9/28 ,  E02F3/815

CPC classification number: E02F9/2841 ,  E02F3/8152

Abstract: A spring clip defines an axis of movement, and includes a handle portion disposed at a first end along the axis of movement, and a tool bit engaging portion disposed at a second end along the axis of movement. Also, an adapter board engaging portion is disposed at least partially between the handle portion, and the tool bit engaging portion along the axis of movement.

公开(公告)号：US20230332382A1

公开(公告)日：2023-10-19

申请号：US17723732

申请日：2022-04-19

Applicant: Caterpillar Inc.

Inventor： David Bruno Parzynski, JR. ,  Thomas Marshall Congdon ,  Benjamin Thomas Schafer

IPC: E02F9/26 ,  E02F9/28

CPC classification number: E02F9/2883 ,  E02F9/26 ,  E02F9/2858 ,  E02F9/2833

Abstract: A wear member includes an attachment portion, and a wear portion extending from the attachment portion that defines a wear surface. The wear portion has a dispersible wear indicator that is disposed in the wear portion, and that is spaced a predetermined distance away from the wear surface.

公开(公告)号：US20190360170A1

公开(公告)日：2019-11-28

申请号：US15989508

申请日：2018-05-25

Applicant: Caterpillar Inc.

Inventor： David Bruno Parzynski, JR. ,  Thomas Marshall Congdon

IPC: E02F3/815 ,  E02F9/28

Abstract: An adapter board for use with a blade assembly includes a lower tool bit attachment portion, terminating in a lower adapter board free end, the lower adapter board free end defining a bottom surface defining a plurality of shank receiving bores and a plurality of pry slots. Each one of the plurality of pry slots is disposed adjacent at least one of the plurality of shank receiving bores.

公开(公告)号：US20190316327A1

公开(公告)日：2019-10-17

申请号：US15952955

申请日：2018-04-13

Applicant: Caterpillar Inc.

Inventor： David Bruno Parzynski, JR. ,  Thomas Marshall Congdon

IPC: E02F9/28 ,  E02F3/815

Abstract: A tool bit comprises a shank portion defining a longitudinal axis, and a working portion extending downwardly axially from the shank portion. The working portion includes a rear region, a front working region, a first side region and a second side region, and the first side region and the second side region define an angle of extension measured in a plane perpendicular to the longitudinal axis, forming a wider front working region than the rear region in a plane perpendicular to the longitudinal axis.