Caterpillar Inc.

Gabriel John Ellicott

Brett Edward Burke

Matthew Wayne Walsh

Michael Noble

Richard Griffith Marsh

Jeffory Troy Curry

In some implementations, a retention apparatus for retaining a rod in a cylinder rod may include a first retention component and a second retention component. The first retention component may be configured to retain the rod in the cylinder rod. The first retention component may comprise a first surface and a second surface. The portion, of the first surface, may be a threaded surface and may be adjacent to the second surface. The portion may be configured to be threaded onto the cylinder rod to cause the second surface to retain the second retention component in the cylinder rod and to cause the second retention component to engage the rod. The second retention component may be configured to engage the rod.

Retention device

A lifting system may comprise a rod comprising a threaded portion and a lifting bracket assembly configured to be moved up and down the threaded portion. The lifting bracket assembly may comprise a bushing component, a lifting bracket comprising a receiving portion that includes a receiving hole, and a threaded component configured to be inserted over the bushing component. The receiving portion may be configured to be inserted over the bushing component via the receiving hole.

Adjustable length lifting bracket

A drilling drive system is provided. The drilling drive system has a mast having a longitudinal axis and a surface extending along the longitudinal axis. A bar is fixed to the surface of the mast and extends along the longitudinal axis. A plurality of rungs is disposed along the length of the bar, and a floating chain is disposed around the mast. A drive sprocket has a plurality of teeth that engage the plurality of rungs and the floating chain.

Track assembly for drilling drive system

A hobbing or gear cutting machine uses a rotary tool to rotate a cutting tool around a central axis of the cutting tool. The cutting tool has zero lead cutters, that is, the cutting tool is non-helical. A head holds the rotary tool and moves the cutting tool longitudinally along the central axis of the cutting tool. A workpiece holder holds a workpiece to be machined into a gear proximate the cutting tool. The workpiece holder selectively rotates the workpiece in conjunction with the longitudinal movement of the cutting tool via the head to cut both straight and helical gears from the workpiece.

Zero lead generative cutting tool

A continuously variable transmission (CVT) includes an input arrangement associated with an input shaft and an output arrangement associated with an output shaft. An input sprocket and an output sprocket are connected via a chain. An input cone member is connected to the input shaft, disposed within a central opening of the input sprocket, and frictionally engages an inner periphery of the input sprocket such that rotation of the input cone causes the input sprocket to rotate. An output cone member is connected to the output shaft, disposed within a central opening of the output sprocket, and frictionally engages an inner periphery of the output sprocket such that rotation of the output sprocket causes rotation of the output cone member.

Continuously variable transmission

A machine tool for supporting and rotating a workpiece includes a first machine center supporting a first workpiece end of the workpiece. A dead center defines a second machine center of the machine tool. A center spacer has a first spacer end rotatably supported on the second machine center and a second spacer end supporting a second workpiece end of the workpiece. A drive mechanism is configured to rotate the workpiece and, during rotation of the workpiece, the center spacer is configured to rotate with the workpiece about the second machine center. The second workpiece end includes a first material and the center spacer includes a second material that is different than the first material.

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Peoria Heights, IL, United States of America

Gabriel John Ellicott