Caterpillar Inc.

Thomas Marshall Congdon

Nathan Richard Bjerke

David Bruno Parzynski, Jr

David B Parzynski

William J Renski

Nick William Biggs

James Robert Lahood

Samuel August Buckholz

Scott Anthony Schick

Kevin L Martin

Susan Marie Graham

Paul Thomas Corcoran

Sudha Kottakapu

Edward H Betts, Jr

Tobias James Toennies

Phillip John Kunz

Patrick Simon Campomanes

John Michael Plouzek

Benjamin Thomas Schafer

Dan Pierce

Bart A Fisher

Madhukar Maguluru

James Wagner

Jim Dale Angell

Shadi Kfouf

George Maska

Paul Davis Jackson, Jr

Sudhir R Kallu

R Paul Knight

Brian Charles Brown

Drew Steven Solorio

David Jason Mcintyre

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.

Dispersible wear indicator

A tool bit includes a working portion, and a shank portion defining a shank free end. The working portion includes a pair of side inserts, and a front insert.

Washout protection for a bit

Bucket shroud

In one aspect, a corner shroud includes a body that may have a floor portion having a floor rear surface, a floor inner surface, a floor lower surface, and a floor upper surface having a curved portion, a side portion, extending from the floor portion, and having a side outer surface, a side rear surface, a side inner surface, and a side upper surface, a front portion extending between the floor portion and the side portion, the front portion having a front surface, a front inner surface, and a front rear surface, and a top portion extending from the front portion, the top portion having a top upper surface, a top inner surface, a top lower surface, a top rear surface, and a top outer surface. The floor upper surface, the side inner surface, the front rear surface, the top lower surface, and the top inner surface define a recess.

Corner segment and corner shroud having a curved portion for a work implement

A shroud retention system for a work tool is disclosed. The shroud retention system may have an adapter attached to the work tool. The shroud retention system may also have a shroud that slidably engages with the adapter. The shroud may have a retainer slot. Further, the shroud retention system may have a spring assembly disposed in the shroud. The spring assembly may have a block that slidably moves relative to the adapter. The spring assembly may also have a resilient member disposed between the adapter and the block. In addition, the spring assembly may have a retainer disposed in the retainer slot. The retainer may engage with the block. The retainer may have at least one recess disposed on the retainer front face or on the retainer rear face. The recess may extend partway toward the other of the retainer front face or the retainer rear face.

Shroud retention system for a work tool

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.

Adapter board with splined bushing

A wear member comprises a shank portion defining a longitudinal axis, a free end and a perimeter, at least one flat surface on the perimeter extending to the free end and a cross-hole defining a cross-hole axis along which the cross-hole extends through the at least one flat surface perpendicularly, and a wear portion extending downwardly axially from the shank portion, the wear portion including a polygonal configuration.

Serrated blade assembly using differently configured components

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.

Adapter board bolted joint surface

A work tool or a wear member includes a working portion or a wear portion, and a shank extending from the working portion or the wear portion, defining a longitudinal axis, and a first lock receiving groove that defines an axis of rotation that is perpendicular to the longitudinal axis of the shank.

Retention system for motor grader bits

A cutter bit for a work tool on a machine includes a leading end, conical-shaped tip portion, a rearward, frustoconical-shaped tip portion extending axially rearwardly from the leading end, conical-shaped tip portion, an annular ledge extending radially outwardly from a trailing edge of the rearward, frustoconical-shaped tip portion, a frustoconical-shaped body portion extending axially rearwardly from an outer circumferential edge of the annular ledge, a cylindrical collar portion extending axially rearwardly from a trailing edge of the frustoconical-shaped body portion, and a trailing end, cylindrical-shaped shank portion extending axially rearwardly from the cylindrical collar portion. The cutter bit may also include a plurality of circumferentially-spaced ribs projecting radially outwardly from an outer peripheral surface of at least one of the leading end, conical-shaped tip portion, the rearward, frustoconical-shaped tip portion, or the frustoconical-shaped body portion.

Carbide cutter bit with ribbed sides and conical tip

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.

System for securing bits against rotation

A tool bit includes a shank portion defining a longitudinal axis, a free end, and a perimeter, at least one anti-rotation feature on the perimeter extending to the free end, and a cross-hole defining a cross-hole axis along which the cross-hole extends through the shank portion. The tool bit also including a working portion extending downwardly axially from the shank portion. The working portion includes a rear region, a front working region defining a width with a midpoint, a first side region and a second side region. The first side region and the second side region define an angle of extension measured in a plane perpendicular to the longitudinal axis. The cross-hole axis pass through the width of the front working region when projected onto a plane perpendicular to the longitudinal axis.

Retention system for attaching tool bits to a blade assembly

A wear member configured to be attached to a work implement includes a body defining a front working region, a rear mounting region, a first side region connecting the front working region to the rear mounting region, and a second side region connecting the front working region to the rear mounting region. The rear mounting region includes a plurality of mounting pads and defines at least once recess disposed at least partially on at least one of the plurality of the mounting pads.

Growing community of inventors

Dunlap, IL, United States of America

Thomas Marshall Congdon