Patent ID: 6575102
Filing Date: 2003-06-10
Classification: B61D

Abstract:
An insulated railway boxcar comprising:a railway car underframe having a floor assembly mounted thereon and attached thereto; the railway car underframe and the floor assembly each having generally elongated, rectangular configurations; a pair of side wall assemblies respectively mounted on and attached to opposite sides of the railway car underframe; a pair of end wall assemblies respectively mounted on and attached to opposite ends of the railway car underframe; each side wall assembly formed from a plurality of metal sheets, support posts, layers of fiber reinforced plastic and foam insulation; each end wall assembly formed from a plurality of metal sheets, end beams, layers of fiber reinforced plastic and foam insulation; exterior surfaces of the metal sheets cooperating with each other to form exterior surfaces of the insulated railway car box; each support post and each end beam having a first surface and a second surface; the first surfaces of each support post and each end beam respectively attached to interior surfaces of adjacent metal sheets; the support posts and end beams spaced from each other to partially define void spaces with respect to the interior surfaces of adjacent metal sheets; respective isolators attached to the second surface of each support post and each end beam; the layers of fiber reinforced plastic disposed on the isolators and covering respective void spaces defined in part by the interior surfaces of the adjacent metal sheets and the associated support posts or end beams; and the foam insulation disposed within each void space and bonded with interior surfaces of adjacent metal sheets, associated support posts or end beams and adjacent portions of respective layers of the fiber reinforced plastic.