US 12,139,857 B2
Curved insulated rail joint bar and methods for making same
Sidney Shue, Canonsburg, PA (US); and Faizan Ansari, Pittsburgh, PA (US)
Assigned to L.B. Foster Company, Pittsburgh, PA (US)
Filed by L. B. FOSTER COMPANY, Pittsburgh, PA (US)
Filed on Dec. 23, 2020, as Appl. No. 17/133,124.
Prior Publication US 2022/0195673 A1, Jun. 23, 2022
Int. Cl. E01B 11/08 (2006.01)
CPC E01B 11/08 (2013.01) 20 Claims
OG exemplary drawing
 
1. A rail joint bar, comprising:
a first side and a second side;
wherein the first side has a longitudinal axis and outer surface curved convexly along the longitudinal axis and wherein the first outer surface define a rounded shape conforming to and fitting within a concavely curved channel of a side of a curved railroad rail joint, wherein the concavely curved channel is defined by a web, a head and a foot of the railroad rail joint; and
wherein the second side has a second outer surface having approximately the same radius of curvature as the first side.