Caterpillar Sarl

Caterpillar Inc.

Michael C Layko

Jeffrey Michael Parker

Michael Steven Freberg

Mylvaganam Arulraja

Michael S Bottom

Leslie L Weaver, Jr

Joshua D Callaway

Christopher Erik Bright

Vincent Adam Armstrong

Benjamin J Terry

A machine may include a body, a boom link, a swing casting, and a boom. The boom and the swing casting may be configured to rotate horizontally about an axis through the boom link. The machine may further include a mounting bracket fixedly connected to the swing casting, a position sensor fixedly connected to the boom link, a first link fixedly connected at a first end to the position sensor and configured to rotate about an axis through a rotary element, and a second link fixedly connected at a first end to the mounting bracket and at a second end to a second end of the first link. The first link and the second link may be configured to rotate horizontally with horizontal rotation of the boom and the swing casting and to transfer the horizontal rotation of the boom and the swing casting to the rotary element.

Machine with a boom link and position sensor

A machine is provided. The machine has a forward direction of travel and includes a frame, at least one lift arm, a first torsion axle assembly, an undercarriage, and an endless track. The lift arm is pivotally attached to the frame. The first torsion axle assembly is attached to the frame and includes a first torsion arm, a first torsion shaft, and a first axle, with the first torsion shaft and the first axle extending from the first torsion arm. The undercarriage is attached to the first torsion axle assembly and the endless track encircles the undercarriage. One of the first torsion shaft and the first axle is attached to the frame and the other of the first torsion shaft and the first axle is attached to the undercarriage. The first torsion arm extends upward from the frame at an angle between 90 and 180 degrees from the forward direction of travel.

Suspension for a machine

A method of lifting a boom assembly for a machine along a lift path is provided. The machine has a work implement coupled to the boom assembly. The method includes initially moving the work implement vertically from a lowered position to a first intermediate position forward of the lowered position. The method also includes subsequently moving the work implement vertically from the first intermediate position along a slightly rearwardly inclined direction to a second intermediate position rearward of the first intermediate position. The method also includes subsequently moving the work implement vertically from the second intermediate position along a slightly forwardly inclined direction to a third intermediate position forward of the second intermediate position. The method also includes finally moving the work implement vertically from the third intermediate position along a slightly rearward inclined direction to a final position rearward of the first, second, and third intermediate positions.

Method of lifting a boom assembly

A boom assembly for a work machine including a boom extending from a forward portion of the work machine toward a rear portion of the work machine, a rear link member connected between a frame of the work machine and the boom by a first frame pivot connection and a first boom pivot connection, and a forward link member connected between the frame of the work machine and the boom by a second frame pivot connection and a second boom pivot connection. The boom assembly also includes an actuator connected between the frame of the work machine and the boom by a third frame pivot connection and a third boom pivot connection. The second frame pivot connection is located vertically below the first frame pivot connection and above the second boom pivot connection when the boom assembly is in a lowered position.

Lift boom assembly

Growing community of inventors

Apex, NC, United States of America

Michael C Layko