Ventilated transfer cask with lifting feature
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United States of America Patent
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Oct 11, 2016
Grant Date -
Jan 7, 2016
app pub date -
Jan 27, 2014
filing date -
Jan 25, 2013
priority date (Note) -
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status (Latency Note)
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Abstract
An apparatus for transferring spent nuclear fuel in the form of a cask having a cylindrical inner shell forming a cavity configured to receive a canister containing spent nuclear fuel, an intermediate shell disposed concentrically around and spaced apart from the inner shell and an outer shell disposed concentrically around and spaced apart from the intermediate shell. A bottom flange is affixed to bottoms of each of the shells, and a bottom lid is removably affixed to the bottom flange. A top flange is affixed to tops of each of the shells, and a top lid is seated on the top flange. An annulus for air flow may be formed between the inner shell and the canister; the bottom lid may include an impact zone including impact absorbing structure; and the top flange may have integrally formed trunnions.
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