Wave Amplitude Attenuation and Wear Prevention Methods for Non-Wood-Timber Railroad Ties

a non-wood-timber, wave-amplitude attenuation technology, applied in the direction of rail fasteners, railway track construction, ways, etc., can solve the problems of increasing the longevity of the wood tie, increasing the cost of feed stock scarcity, and not being proven effective, so as to reduce the wave amplitude and frequency
US20120305663A1Inactive Publication Date: 2012-12-06AXTON KYLE DAVID
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Patent Information

Authority / Receiving Office
US · United States
Patent Type
Applications(United States)
Current Assignee / Owner
AXTON KYLE DAVID
Publication Date
2012-12-06
Estimated Expiration
Not applicable · inactive patent

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Abstract

Non-wood-timber (NWT) railroad ties such as concrete remove cushion and pressure wave attenuation provided by wood timber railroad ties. I provide methods to reintroduce cushion and wave attenuation by means of adding an elastomeric sole. To further increase wave attenuation a layer of ground automobile tire is placed between the hardpan and ballast. Also, reclaimed asphalt is an inexpensive means to create hardpan that reduces railroad tie pumping.
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Description

CROSS-REFERENCE TO RELATED APPLICATIONS

[0001] Not ApplicableSTATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT

[0002] Not Applicable. The invention has no sponsor.REFERENCE TO SEQUENCE LISTING, A TABLE, OR A COMPUTER PROGRAM LISTING COMPACT DISC APPENDIX

[0003] Not ApplicableBACKGROUND OF THE INVENTION

[0004] Definitions for this patent application are:

[0005] the word sole refers to the material that isolates the railroad tie from ballast.

[0006] a non-wooden-timber railroad tie shall be denoted “NWT tie.”

[0007] aramid fibers such as poly-para-phenylene terephthalamide may be referred to by the trade name Kevlar a trademark of DuPont or Twaron a trademark of Teijin.

[0008] Railroads the world over traditionally utilize wooden timber ties 1 placed in a rock ballast 2,4 as seen in FIGS. 2 and 3. The ties 1 maintain the gauge or distance between the steel rails 3. Steel spikes and plates, not shown, affix rails 3 to wood ties 1. Ties 1 are placed atop a ballast base 2 that forms the le...

Claims

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