Railroad sleeper and process for manufacturing a railroad sleeper
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United States of America Patent
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Issued Date -
Jun 17, 2021
app pub date -
Jun 3, 2020
filing date -
Nov 11, 2014
priority date (Note) -
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Abstract
The present invention relates to a railroad sleeper (1) for fixation of at least a pair of rails (2,2′) of a railroad network, comprising a contact surface (3), wherein each rail of the pair of rails (2,2′) is fixed spaced apart from each other, the railroad sleeper (1) being configured by comprising a hollow sector (4) delimited by association of the contact surface (3) with the anchorage walls (5,5′), thus establishing a free portion (17) adjacent to the anchorage walls (5,5′) and opposite the contact surface (3). The present invention further discloses an embodiment in which the hollow sector (4) of the railroad sleeper is delimited by a support surface and the process of manufacturing a railroad sleeper.
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