Caterpillar Inc.

Other

Lewis C Hunt

David Jennings Hakes

Temitope Olayemi Akinlua

Michael Stephen Galat

Donald John Kalmes

Gennaro Suanno

A track roller includes a roller shell, a roller shaft extending through the roller shell, and a collar. The collar includes a center body interference-fitted upon the roller shaft, and a seal carrier. A clearance extends radially between a center body outer surface and a face seal assembly held in axial compression between the seal carrier and the roller shell. An oil void is formed in the center body and fluidly connected to the clearance to provide an increased oil volume for lubrication and heat-dissipation.

Track roller having collar forming oil void for improved seal lubrication

A sprocket segment assembly for use with a sprocket of a tracked machine includes a first circumferential sprocket segment including a tooth with a first bushing contact surface, a second bushing contact surface, and a top surface extending circumferentially between the first bushing contact surface and the second bushing contact surface. The first bushing contact surface defines a cavity, and a roller extending proudly of the first bushing contact surface.

Sprocket with a roller assembly inserted into the sprocket teeth

A sprocket segment includes a body with an attachment web including a first circumferential end and a second circumferential end. A sprocket region extends radially outwardly from the attachment web, including a plurality of lugs. The first circumferential end includes a dovetail recess including a first side flat surface extending circumferentially and radially from the first circumferential end, a second side flat surface extending circumferentially and radially from the first circumferential end, and an arcuate bottom surface extending radially between the first side flat surface and the second side flat surface.

Sprocket locking segments

Sleeping bags and bed covers are provided with selectively designed heat retention comfort zones so as to provide variable degrees of warmth along the length of a user. The covers provide light insulation between a user's hips and shoulders, medium insulation between the hips and knees, and heavy insulation between the knees and feet. In an alternative embodiment, an inflatable body form may be provided to give the appearance of someone sleeping beneath the cover to provide greater security from intruders.

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Chillicothe, IL, United States of America

Lewis C Hunt