(19)
(11) EP 0 343 410 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
16.05.1990 Bulletin 1990/20

(43) Date of publication A2:
29.11.1989 Bulletin 1989/48

(21) Application number: 89108147.3

(22) Date of filing: 05.05.1989
(51) International Patent Classification (IPC)4G21F 5/00
(84) Designated Contracting States:
BE DE ES FR GB IT SE

(30) Priority: 24.05.1988 US 198208

(71) Applicant: WESTINGHOUSE ELECTRIC CORPORATION
Pittsburgh Pennsylvania 15222 (US)

(72) Inventor:
  • Efferding, Larry Edward
    Pensacola Florida 32514 (US)

(74) Representative: Gallo, Wolfgang, Dipl.-Ing. (FH) et al
Patentanwälte Dipl.-Ing. L. Fleuchaus Dipl.-Phys. H. Schroeter Dipl.-Ing K. Lehmann, Dipl.-Ing.W. Wehser Dipl.-Ing. R. Holzer, Dipl.-Ing.(FH) W. Gallo Ludwigstrasse 26
86152 Augsburg
86152 Augsburg (DE)


(56) References cited: : 
   
       


    (54) Shipping cask for nuclear fuel


    (57) The shipping cask comprises a vessel (3), and a removable basket assembly (11) within the vessel.
    The vessel (3) has heat-conductive ribs (5) projecting from its outer surface, a layer of radiation-­absorbing material covering its outer surface between the ribs (5), and flat heat-conductive fins (9) joined to outer edge portions of the ribs and bridging the spaces therebetween so as to form a watertight barrier support­ingly and protectively overlying the layer of radiation-­absorbing material. The basket assembly (11) includes, at its perimeter, heat-conductive formers (22) arranged so as to provide structural reinforcement, equilibration of mechanical shock forces, and good conductive heat transfer without objectionable impediment to convective and radiative heat transfer between the basket assembly and the vessel.










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