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US 5,890,435 AGranted
Insulated composite railway boxcar and method
AssigneeTRN Business Trust
InventorsMell R. Thoman, John W. Coulborn
Life of this patent
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AssigneeTRN Business Trust
InventorsMell R. Thoman, John W. Coulborn
Estimating the term…
An insulated composite railway boxcar having a composite box structure mounted on a railway car underframe is provided. The composite box structure includes side walls, end walls and a floor molded as an integral unit with fiber reinforced plastic interior and exterior surfaces. The composite box structure includes a first fiber reinforced composite unit and a second fiber reinforced composite unit. The first fiber reinforce composite unit provides the end walls, side walls and floor for the railway boxcar. The second fiber reinforce unit may be permanently attached to the side walls and end walls to provide a roof for the boxcar. The railway car underframe has a center sill, side sills and end sills with a generally rectangular configuration and coplanar surfaces for adhesively bonding the composite box structure with the railway car underframe. Mechanical fasteners are also provided to couple the composite box structure with the railway car underframe.
A method of assembling a first molded fiber reinforced composite unit having a pair of opposite side walls and a pair of opposite end walls extending between the side walls, a floor extending between the side walls and the end walls, and an opening formed in each side wall intermediate the ends thereof with a second molded fiber reinforced composite unit to form an insulated composite railway boxcar comprising the steps of:
A method of assembling an insulated composite railway boxcar comprising the steps of:
A method of assembling an insulated composite railway boxcar comprising the steps of:
Dependencies are inferred from the claim text.