Railways – Traction – Pusher
Reexamination Certificate
2008-05-27
2008-05-27
Olson, Lars A (Department: 3617)
Railways
Traction
Pusher
C104S172300, C104S176000
Reexamination Certificate
active
07377219
ABSTRACT:
A single-carriage reversing train positioning system which includes an extending spike-type car engaging member for engaging and moving one or more railcars. An extending chuck assembly may be provided with the ability to operate gates in bottom-discharging railcars. The system uses a single self-propelled carriage with an on-board carriage drive system that includes a drive motor which operates the car along a fixed chain situated along a guideway. A generally horizontally disposed, laterally extendable pin car-engaging assembly is mounted on the car-moving carriage for aligning with and engaging a hook loop on a railcar for moving the car. A gate-operating assembly which includes a laterally extendable chuck system which aligns with, engages and rotates gate-operating capstans on bottom discharging railcars may also be provided.
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patent: 6837168 (2005-01-01), Goldbeck et al.
Calbrandt, Inc.
Mersereau C. G.
Nikolai & Mersereau , P.A.
Olson Lars A
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