Induced nuclear reactions: processes – systems – and elements – Handling of fission reactor component structure within... – Storage container systems for new and/or irradiated core...
Patent
1995-04-10
1996-04-30
Wasil, Daniel D.
Induced nuclear reactions: processes, systems, and elements
Handling of fission reactor component structure within...
Storage container systems for new and/or irradiated core...
G21F 5008
Patent
active
055132324
ABSTRACT:
The present invention provides a cask (10) for transport and short-term storage of spent nuclear fuel. The cask 10 includes a structural shell (14) defining a cavity (40) for receiving spent nuclear fuel. The shell is formed from an upper shell portion (16) formed of a first metal and a lower shell portion (18) formed from a second metal. The first metal utilized to form the upper shell portion has a higher load bearing strength than the second metal utilized to form the lower shell portion. A bearing surface is defined on the upper shell portion by trunnions (30) mounted within sleeves (32) secured to the upper shell portion. The trunnions (30) each define a bearing projection (160) that is engageable to enable hoisting of the cask, with the tensile and shear loads of hoisting the cask being transferred from the trunnions to the trunnion mounting sleeves, and thus to the upper shell portion of the structural shell. The cask further includes a bottom closure plate (20) secured to the bottom end of the shell, and a top closure plate releasably securable to the top end of the shell. A neutron radiation absorbing shield jacket (28) is formed about the exterior of the structural shell.
REFERENCES:
patent: 2514909 (1950-07-01), Strickland
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patent: 4336460 (1982-06-01), Best et al.
patent: 4532104 (1985-07-01), Wearden et al.
patent: 4896046 (1990-01-01), Efferding
Jones Kyle B.
Lehnert Robert A.
McInnes Ian D.
Quinn Robert D.
Sisley Steven E.
Pacific Nuclear Systems, Inc.
Wasil Daniel D.
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