Abstract: An end support system is applied to each end of a container for shipping nuclear fuel assemblies in an inner box within the container. The end support system includes a rectilinear metal end frame, a crosspiece with a reinforcing channel along an inside surface of the crosspiece and four arms projecting in a perpendicular direction from the metal end frame for straddling the sides of the container end. By screwing the metal end support system into the wooden framing elements of the container, the integrity of the container ends is maintained during hypothetical accident conditions specified in licensing regulations.

Abstract: The shipping container includes an outer container body, an inner containment vessel housing a pair of superposed product pails and a self-extinguishing fire-retardant foam insulation layer between the outer container and inner vessel. The inner vessel includes a gusseted upper flange and a lid bolted to the flange with a sealing gasket therebetween. Upper and lower dunnages are provided at the upper and lower ends of the outer container. The upper dunnage includes ceramic fiberboard panels and foam material straddled by steel sheets and additional ceramic fiberboard panel to separate the lid of the vessel and the top of the container. The top is secured to the outer container body by bolts passing through the top and internally into tapped bolt brackets along an interior wall of the outer container body. A retaining ring secures the arcuate overlying rolled edge of the top about the beaded rim of the outer container body.

Abstract: An end support system is applied to each end of a container for shipping nuclear fuel assemblies in an inner box within the container. The end support system includes a rectilinear metal end frame, a crosspiece with a reinforcing channel along an inside surface of the crosspiece and four arms projecting in a perpendicular direction from the metal end frame for straddling the sides of the container end. By screwing the metal end support system into the wooden framing elements of the container, the integrity of the container ends is maintained during hypothetical accident conditions specified in licensing regulations.