초록 ▼

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 bolt

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. A reinforced plate covers the seam of the outer container underneath the retaining ring bolt for additional container integrity. Vent holes with plastic plugs which melt in response to a predetermined temperature vent the container body to preclude pressure buildup within the container body by expanding gases.

대표청구항 ▼

1. A shipping container for radioactive materials comprising:an outer, generally cylindrically-shaped container body having a closed lower end and an open, upper end; a top for releasable securement to the container body and closing said open upper end thereof; a generally cylindrical inner containm

1. A shipping container for radioactive materials comprising:an outer, generally cylindrically-shaped container body having a closed lower end and an open, upper end; a top for releasable securement to the container body and closing said open upper end thereof; a generally cylindrical inner containment vessel generally concentrically disposed in said outer container body for receiving at least one radioactive material containing pail, said vessel having a lid for closing an open upper end thereof; a foam material between said outer container body and said inner vessel; said inner vessel having an outwardly directed flange about said open end thereof; a plurality of circumferentially spaced reinforcing gussets between an outer surface of said vessel and an underside of said flange for reinforcing said flange; said lid and said flange having cooperating fastening elements for fastening said lid and said flange to one another.