Patent Number: 047602686
Section: claims

1. A container for medium or low activity radioactive waste comprising a drum which has an axis and a side wall concentric to said axis and which is open at an upper axial end thereof, and a cover for closing said open end of the drum, said container being characterized by: A. said cover comprising an upper and a lower disc-like horizontal plate and a plurality of plate-like baffle members between said plates that connect them in spaced apart and parallel relationship, said lower plate and baffle members being receivable within the drum in a closed condition of the cover wherein said upper plate overlies the upper end of the drum all around the same,  B. said drum having a circumferential ledge near its upper end that defines a downwardly facing shoulder which projects radially inwardly from said side wall;  C. means carried by said baffle members at their radially outer ends providing a plurality of substantially resilient tongues at circumferentially spaced intervals around the cover, each said tongue projecting obliquely radially outwardly and axially upwardly to have a free end portion which is deflected radially inwardly by said ledge as the cover is moved down to its closed condition and which lockingly engages under said shoulder when the cover reaches said condition; and  D. said cover further comprising a central coaxial ferrule extending between said plates, said ferrule  a cup-shaped receptacle coaxially secured to said ferrule and surrounding the same near said upper end thereof, said receptacle having 2. The container of claim 1, further characterized by: said upper plate having an elastically deformable peripheral portion capable of flexing to bear against the upper end of said drum under resilient bias all around the same. 3. The container of claim 2, further characterized by: each said baffle member having an upper edge portion which is spaced below said peripheral portion of the upper plate to leave the same free for flatwise flexing. 4. The container of claim 3, further characterized in that: each said baffle member has a notch in its upper edge, intermediate the radially inner and radially outer ends of the baffle member, to provide for communication between said sectors at a level downwardly adjacent to the upper plate. 5. The container of claim 1, further characterized by: a gasket secured to the underside of said upper plate, around the peripheral portion thereof, for sealingly engaging the upper end of the drum. 6. The container of claim 1, further characterized by: