05916093 is referenced by 9 patents and cites 29 patents.

A fiberglass railcar roof that includes a fiberglass surface with a central portion and plural elongate fiberglass ribs extending transverse to the longitudinal axis of the fiberglass surface. In a first embodiment, the central portion has a cross-sectional configuration that defines a first arc, and the ribs each have broad widths and each extend above the central portion to define a second arc that intersects the first arc. In a second embodiment, the ribs have arcuate cross-sections and extend downward from the lower face of the central portion. Also disclosed are embodiments of the previously described roofs that are configured for use on refrigerated and cryogenic railcars.

Title
Composite fiberglass railcar roof
Application Number
8/736255
Publication Number
5916093
Application Date
October 24, 1996
Publication Date
June 29, 1999
Inventor
Paul L Packer
Wheatland
CA, US
Joseph V Fecko
Danville
CA, US
Agent
Kolisch Hartwell Dickinson McCormack & Heuser
Assignee
American Composite Material Engineering
CA, US
IPC
F25D 3/12
B61D 17/12
B61D 17/00
View Original Source