Concrete railroad tie with guide plates for the rail base

Details Concrete railroad tie with guide plates for the rail base Concrete railroad tie with guide plates for the rail base

2007-01-02

2007-01-02

Le, Mark T. (Department: 3617)

Railways: surface track

Rail seats

With anchor in concrete

C238S287000, C238S297000, C238S298000, C238S299000

Reexamination Certificate

active

10621765

ABSTRACT:
A concrete railroad tie, especially a two-block railroad tie, with an elastic rail support for ballast and solid tracks, with guide plates with twisting-prevention devices disposed in the supporting region between the base of the rail and the lateral, raised shoulders of the railroad tie, characterized in that the support area is constructed essentially flat without continuous, deep depressions.

REFERENCES:
patent: 3904112 (1975-09-01), Thim et al.
patent: 4078724 (1978-03-01), McCormick et al.
patent: 4907740 (1990-03-01), Oberweiler et al.
patent: 6364214 (2002-04-01), Sonneville et al.
patent: 6488215 (2002-12-01), Mohr
patent: 6659363 (2003-12-01), Mohr
patent: 38 20 243 (1988-06-01), None
patent: 297 07 425 (1997-04-01), None
patent: 100 30 998 (2000-06-01), None
patent: 198 48 928 (2000-10-01), None
patent: 0 767 274 (1997-04-01), None

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