Patents Represented by Attorney Jonathan V. Trousdale

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  • Track roller assembly and machine using same
    Patent number: 7832815
    Abstract: A track roller assembly for a track-type machine such as an excavator or a tractor includes an outer surface with no fluid ports and an inner surface free from any fluids. The track roller includes a shaft resting on self-lubricated bushings, which include a substrate that has lubricating properties, such as a substrate that carries a solid lubricant. The track roller assembly also includes a collar and a retention plate on both sides of the shaft.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: November 16, 2010
    Assignee: Caterpillar Inc
    Inventor: Jeffrey S. VanderVeen