Enclosed railcar jack assembly

Railways – Truck changer

Reexamination Certificate

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Details

C254S08900R

Reexamination Certificate

active

11016327

ABSTRACT:
The disclosed jack assembly is used to lift the frame of a railcar above a wheeled truck assembly in order to replace or perform maintenance upon the wheeled truck assembly. The jack assembly comprises a pair of hydraulically-powered lifting mechanisms located at opposing ends of a railcar-engaging member, such that the lifting mechanisms and the railcar-engaging member move as a unit to raise the frame of the railcar.

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patent: 5876018 (1999-03-01), Crisp et al.
patent: 6173941 (2001-01-01), Johnston

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