Maro Publications

Railroad Ties

From 06/03/2014 to xx/xx/xxxx

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Patent Abstracts

Patent Titles

 

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Patent Titles

1. 8,727,228 
Structure for railroad ties having data acquisition, processing and transmission means  

 

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Patent Abstracts

Djerf and Eisenhut of TJ Technology Holdings developed railroad ties consisting of a core of laminated wood slats inserted into an extruded sleeve of scrap tire rubber and polyurethane. An urethane adhesive is a lubricant and bonding agent.

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Notes

Railroad ties have traditionally been made of solid wood, typically hardwood that has been chemically treated with a preservative such as creosote to discourage insect attack and biological degradation. Treated solid wood ties, however, have a relatively short useful life span of five to fifteen years before they have deteriorated to the point that they must be replaced, and they often require significant maintenance during that life span. The use of spikes driven into the wood ties to secure the steel rails contributes significantly to the short life of such ties. The oscillating loads imparted to the rail spikes securing the rail gage result in split ties and ejected spikes, both contributing to the need for early replacement or maintenance. (Djerf and Eisenhut, US Patent 8,727,228, 5/20/2014)

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Interested!!
Bookmark this page to follow future developments!.
(RDC 7/16/2012)

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Roger D. Corneliussen
Editor
www.maropolymeronline.com

Maro Polymer Links
Tel: 610 363 9920
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E-Mail: cornelrd@bee.net  

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Copyright 2013 by Roger D. Corneliussen.
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