Patent ID: 7210413
Filing Date: 2007-05-01
Classification: B60P,B61D,Y02T

Abstract:
1. An insulated boxcar comprising: a pair of sidewall assemblies mounted on a railway car underframe; each sidewall assembly having an exterior surface formed by a layer of fiber reinforced plastic material and an interior metal surface formed by a plurality of metal sheets; urethane foam disposed between and bonded with the layer of fiber reinforced plastic material and the metal sheets; each sidewall assembly having a plurality of metal support posts attached to a side sill assembly; the metal sheets attached to respective first surfaces of the metal support posts; a beam formed from nonmetallic material attached to respective second surfaces of at least a portion of the metal support posts opposite from the metal sheets; and the layer of fiber reinforce plastic attached with the nonmetallic beams opposite from the associated metal support post.