Structure for railroad ties having data acquisition, processing and transmission means
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United States of America Patent
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May 20, 2014
Grant Date -
Apr 19, 2012
app pub date -
Dec 2, 2011
filing date -
Dec 30, 2009
priority date (Note) -
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Abstract
An encapsulated railroad tie structure and its method of manufacture. A core of laminated wood slats is inserted into an extruded sleeve of scrap tire rubber and polyurethane. A urethane adhesive laminates the wood slats together and serves as a lubricant and bonding agent for placement and secured engagement of the sleeve about the core. End caps are securely engaged to both the core and sleeve. The core may be provided with bores and grooves to receive sensors and conductors interconnected with a processor and transponder maintained in an end cap. The end cap also maintains a photovoltaic device and power source for the active elements of the railroad tie structure. The core may also be manufactured of a wood or other natural fiber giving the core a desired flex modulus to provide for better control and serviceability of associated rails and railway cars.
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