Rail joint bars and rail joint assemblies

Details Rail joint bars and rail joint assemblies Rail joint bars and rail joint assemblies

2006-08-15

2006-08-15

Le, Mark T. (Department: 3617)

Railways: surface track

Rail joints

Insulated

C238S153000, C238S159000

Reexamination Certificate

active

07090143

ABSTRACT:
A rail joint assembly is provided for joining abutting railroad rails with an electrically-insulated joint. The rail joint assembly comprises abutting railroad rails compressing an insulating gasket therebetween and rail joint bars secured through a plurality of holes by fasteners to the adjacent railroad rails. The rail joint bars comprise a body and an insulating spacer comprising a porous mesh screen and washer. A layer of epoxy is sandwiched between a rail joint bar and railroad rail and comprises a rigid epoxy on lateral portions of a first side of a rail joint bar and a flexible epoxy placed on a central portion of the first side of a rail joint bar. Rail joint bars are rectangular shaped and may have a cutout.

REFERENCES:
patent: 1386863 (1921-08-01), Harrington
patent: 2808995 (1957-10-01), Degman
patent: 3006553 (1961-10-01), Greer
patent: 3666175 (1972-05-01), Gill
patent: 5503331 (1996-04-01), Urmson, Jr. et al.
patent: 6571524 (2003-06-01), Pantelides et al.

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