Railroad crossing flangeway liner

Railways: surface track – Roadbed – Street crossing

Reexamination Certificate

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Details

C238S007000, C238S002000

Reexamination Certificate

active

06997391

ABSTRACT:
An ultrahigh molecular weight polyethylene material is utilized in a railroad flangeway to reduce the wear of a railroad crossing base.

REFERENCES:
patent: 3353747 (1967-11-01), Speer
patent: 4793545 (1988-12-01), Raymond
patent: 5813602 (1998-09-01), Holland
patent: 6439470 (2002-08-01), Hull
patent: 6588677 (2003-07-01), Hofstetter et al.
patent: 6871791 (2005-03-01), Egan, Jr.

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