David J Mayfield

US Patent:

20130098726, Apr 25, 2013

Filed:

Dec 30, 2010

Appl. No.:

13/520080

Inventors:

Korhan Ciloglu - Pittsburgh PA, US
David Mayfield - South Bend IN, US

Assignee:

L.B. Foster Company - Pittsburgh PA

International Classification:

B60M 1/30

US Classification:

191 29DM, 2281121

Abstract:

A conductor rail assembly for use in transit rail transportation systems to transmit electrical power to rail cars comprising a first and second support sections preferably of aluminum to give the rail assembly its rail-shape and conductivity and a cap section preferably of stainless steel to provide a wear resistant surface to prevent damaging of the conductor rail by collector shoes that extend from rail cars and run on the conductor rail. The first support section has a rib and the second support section has a concavity. In the assembly, the rib of the first support member preferably is disposed within the concavity of the second support member, portions of both support members preferably are friction fit or compression fit within the cap and a friction stir weld preferably is disposed on the bottom of the assembly along a joint between the first and second support sections.