公开(公告)号：US12227397B2

公开(公告)日：2025-02-18

申请号：US18061466

申请日：2022-12-04

Applicant: Caterpillar Inc.

Inventor： Simon Tabutin ,  Sean D. Lawson

IPC: B66C23/00 ,  B66C23/76

Abstract: In some implementations, a counterweight assembly, for a lifting machine, includes a plurality of counterweight slabs, including first and second outer counterweight slabs and one or more inner counterweight slabs sandwiched between inner lateral surfaces of the first and second outer counterweight slabs, wherein an outer lateral surface of each outer counterweight slab includes one or more recesses having one or more respective reflective decals disposed therein.

公开(公告)号：US20240409376A1

公开(公告)日：2024-12-12

申请号：US18331987

申请日：2023-06-09

Applicant: Caterpillar Inc.

Inventor： Simon Tabutin ,  Sean D. Lawson

IPC: B66C23/76

Abstract: In some implementations, a counterweight assembly, for a lifting machine, includes a plurality of counterweight slabs, including first and second outer counterweight slabs, and one or more inner counterweight slabs sandwiched between inner lateral surfaces of the first and second outer counterweight slabs. A center slab, of the one or more inner counterweight slabs, includes a lifting eye embedded in a body of the center slab.

公开(公告)号：US20240182273A1

公开(公告)日：2024-06-06

申请号：US18061466

申请日：2022-12-04

Applicant: Caterpillar Inc.

Inventor： Simon Tabutin ,  Sean D. Lawson

IPC: B66C23/76

CPC classification number: B66C23/76

Abstract: In some implementations, a counterweight assembly, for a lifting machine, includes a plurality of counterweight slabs, including first and second outer counterweight slabs and one or more inner counterweight slabs sandwiched between inner lateral surfaces of the first and second outer counterweight slabs, wherein an outer lateral surface of each outer counterweight slab includes one or more recesses having one or more respective reflective decals disposed therein.

公开(公告)号：US11511976B2

公开(公告)日：2022-11-29

申请号：US16594433

申请日：2019-10-07

Applicant: Caterpillar Inc.

Inventor： Curtis John Caldwell ,  Sean D. Lawson ,  Robert Jackson ,  Shikha Pokharel Thapa ,  Aaron Gnagey

IPC: B66C23/00 ,  B66C23/72 ,  B66C13/18 ,  B66C23/90 ,  B66C13/16

Abstract: A system for determining a lifting capacity of a pipelayer is provided. The system includes a load sensor configured to generate a signal indicative of a load suspended from a lifting hook, an angle sensor configured to generate a signal indicative of an angular position of a chassis relative to ground surface, a boom position sensor configured to generate a signal indicative of a position of a boom relative to an undercarriage, and a counterweight position sensor configured to generate a signal indicative of a position of a counterweight relative to the undercarriage. The system further includes a controller configured to receive the signal from each of the load sensor, the angle sensor, the boom position sensor, and the counterweight position sensor. The controller is also configured to determine the lifting capacity of the pipelayer based, at least in part, on the received signal.

公开(公告)号：US11053104B2

公开(公告)日：2021-07-06

申请号：US16433011

申请日：2019-06-06

Applicant: Caterpillar Inc.

Inventor： James Michael Dunn ,  Curtis J Caldwell ,  Sean D. Lawson ,  Dana John Willer

IPC: B66C23/64 ,  B66C23/44

Abstract: A boom for a pipelaying machine includes a pair of posts located in a first plane and disposed in a tapered configuration with respect to a second plane transverse to the first plane. The boom also includes a cross-brace disposed between the pair of posts and located partway along a length of the pair of posts. The cross-brace includes a first link member and a second link member disposed along the first plane. Further, each of the first and second link members are angularly offset from each other and the second plane respectively. Furthermore, ends of the first and second link members are rigidly attached to the pair of posts. The cross-brace further includes a first rib member and a second rib member disposed along the second plane and rigidly attached to the first link member and the second link member respectively.

公开(公告)号：US20210101788A1

公开(公告)日：2021-04-08

申请号：US16594433

申请日：2019-10-07

Applicant: Caterpillar Inc.

Inventor： Curtis John Caldwell ,  Sean D. Lawson ,  Robert Jackson ,  Shikha Pokharel Thapa ,  Aaron Gnagey

IPC: B66C23/72 ,  B66C13/18 ,  B66C13/16 ,  B66C23/90

Abstract: A system for determining a lifting capacity of a pipelayer is provided. The system includes a load sensor configured to generate a signal indicative of a load suspended from a lifting hook, an angle sensor configured to generate a signal indicative of an angular position of a chassis relative to ground surface, a boom position sensor configured to generate a signal indicative of a position of a boom relative to an undercarriage, and a counterweight position sensor configured to generate a signal indicative of a position of a counterweight relative to the undercarriage. The system further includes a controller configured to receive the signal from each of the load sensor, the angle sensor, the boom position sensor, and the counterweight position sensor. The controller is also configured to determine the lifting capacity of the pipelayer based, at least in part, on the received signal.