Top of rail applicator
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United States of America Patent
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Mar 30, 2021
Grant Date -
May 2, 2019
app pub date -
Nov 29, 2018
filing date -
Jan 7, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
A top of rail (TOR) applicator has a bar positioned in a housing and an exit orifice on the upper portion of the bar for delivering a friction control composition to the crown of a railhead. The upper portion of the bar slopes away from the friction control composition exit orifices. The bar may be composed of an elastomer such as polyurethane. Passageway extend from an inlet or entry orifice to the exit orifices. The friction reduction composition is pumped into the entry orifice, through the passageways to the exit orifices and then onto the crown of the railhead. The friction reduction composition may be thixotropic.
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