Patent Number: 044980116
Section: claims

1. A device for receiving, moving, and radiation shielding of vessels filled with expended reactor fuel elements, comprising a protective concrete container having a base; a cylindrical protective jacket, the inner diameter of which is somewhat greater than the diameter of the vessel holding the fuel elements to provide an annular space therebetween; a cover; lateral air inlet ducts at the lower rim of the jacket in communication with the atmosphere and said annular space; and lateral air outlet ducts in the region of the upper rim of the jacket below the cover in communication with the atmosphere and said annular space, characterized in that said base consists of a movable pallet separate from said jacket having a central platform for supporting said fuel element vessel, said jacket resting upon the margin of said base surrounding said platform,  said base carries centering means to properly position said jacket on said base, and is supported by legs to permit underrun for lifting,  said air outlet ducts have two inclined segments joined at an apex within the wall of said jacket, an inner segment opening into said annular space and an outer segment opening to the atmosphere, said inner segment being longer than and extending below said outer segment,  said cover is in the form of a hood having a downwardly-turned flange spaced from and surrounding said jacket and extending below said outlet ducts.