公开(公告)号：US10889959B2

公开(公告)日：2021-01-12

申请号：US15952421

申请日：2018-04-13

Applicant: Caterpillar Inc.

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

IPC: E02F3/815

Abstract: A blade assembly comprises a moldboard defining an upper moldboard free end and a lower moldboard free end, the lower moldboard free end defining a lower curved mounting surface, and an adapter board defining an upper adapter board attachment portion, and a lower tool bit attachment portion. The upper adapter board attachment portion may include a first peak surface and a second peak surface, the first peak surface and the second peak surface forming a first valley therebetween and being configured to contact the lower curved mounting surface.

公开(公告)号：US20220195550A1

公开(公告)日：2022-06-23

申请号：US17133251

申请日：2020-12-23

Applicant: Caterpillar Inc.

Inventor： Matthew Thomas Kiser ,  Lindsey S. Cavanaugh ,  Thomas Marshall Congdon ,  Susan Marie Graham ,  Tianjun Liu ,  Mark David Veliz ,  Thomas John Yaniak

IPC: C21D9/04 ,  C21D8/00 ,  B62D55/205 ,  C21D6/00 ,  C21D1/84 ,  C21D7/13 ,  C22C38/02 ,  C22C38/04

Abstract: An example track shoe, cutting edge, or other component of a machine is formed in a heated process, such as hot-rolling followed by air-hardening. The air-hardening process involves cooling the component by flowing air over the component (e.g., air cooling), such that the component is cooled at a controlled rate. During the air-cooling process, such as in the range of about 250° C. to about 1100° C., the component may be machined, such as by shearing, punching, drilling, etc. The machining may form the final shape of the component. As the air-hardening process is completed, and the component approaches room temperature, the component may have at least 5% bainitic crystal composition, and as high as greater than 80% bainitic crystal composition, resulting in relatively high hardness and fracture toughness. The final track shoe may have a hardness between about 40 HRC and 55 HRC.

公开(公告)号：US20190316319A1

公开(公告)日：2019-10-17

申请号：US15952421

申请日：2018-04-13

Applicant: Caterpillar Inc.

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

IPC: E02F3/815

Abstract: A blade assembly comprises a moldboard defining an upper moldboard free end and a lower moldboard free end, the lower moldboard free end defining a lower curved mounting surface, and an adapter board defining an upper adapter board attachment portion, and a lower tool bit attachment portion. The upper adapter board attachment portion may include a first peak surface and a second peak surface, the first peak surface and the second peak surface forming a first valley therebetween and being configured to contact the lower curved mounting surface.

公开(公告)号：US09809959B2

公开(公告)日：2017-11-07

申请号：US14878273

申请日：2015-10-08

Applicant: Caterpillar Inc.

Inventor： Susan Marie Graham ,  Stephen John Pierz ,  Ronald Mark Ginn

IPC: E02F9/28

CPC classification number: E02F9/2833 ,  E02F9/2891

Abstract: A retention system is provided for use in connecting a replaceable tool to a work implement. The retention system may have a generally cylindrical pin with a first hollow end, and a second hollow end located opposite the first hollow end. The retention system may also have a first fastener configured to engage the first hollow end and cause the first hollow end to flare radially outward. The retention system may further have a second fastener configured to engage the second hollow end and cause the second hollow end to flare radially outward.

公开(公告)号：US11788251B2

公开(公告)日：2023-10-17

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 ,  E02F9/28

CPC classification number: E02F3/8152 ,  E02F9/2825

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：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.