COMPOSITE RAILWAY SLEEPER

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United States of America Patent

SERIAL NO

15607766

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A composite railway sleeper (1; 50; 100) comprising an outer coating shell (2; 51; 101) made of composite plastic material and a shaped structural core (3; 52; 102), made of a material comprising at least concrete contained within said outer coating shell (2; 51; 510; 101), wherein said outer coating shell (2; 51; 510; 101) presents in the upper outer face (2a; 51a; 101a) two distinct and opposite groups of grooves (4; 53) suitable to receive the angular guide plates (G) belonging to pre-assembled elastic type fastening systems (64) for the connection of two respective rails (R) with said railway sleeper (1; 50; 100).

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Patent Owner(s)

Patent OwnerAddress
GREENRAIL GROUP S R LVIA BELSIANA 71 ROMA (RM) 00187

International Classification(s)

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  • 2017 Application Filing Year
  • H02N Class
  • 431 Applications Filed
  • 289 Patents Issued To-Date
  • 67.06 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
De, Lisi Giovanni Maria Bagheria (Palermo), IT 2 3

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  • H02N Class
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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges2311613811201 - 1011 - 2021 - 3031 - 4051 - 60100 +05101520253035404550556065707580859095100105110115120125

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