The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 17, 2012
Filed:
Feb. 12, 2008
Manabu Maeda, Kawasaki, JP;
Manabu Maeda, Kawasaki, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A spent fuel storage rackaccording to the present invention is installed in a fuel storage pool of a nuclear facility, and has a rectangular parallelepiped shape forming a plurality of lattice-like cellsthat are configured to separately accommodate a plurality of fuel assemblies in a matrix of rows and columns. As shown in FIG., the spent fuel storage rackincludes: a baseconfigured to support lower parts of fuel assemblies, the baseforming a bottom surface of the spent fuel storage rack; an outer framelocated above the base, the outer frameforming an outermost periphery of the spent fuel storage rack; and a lattice bodydisposed inside the outer frame, the lattice bodyforming the lattice-like cells. The lattice bodyincludes: a main latticehaving a height equivalent to an active length of the fuel assembly; an upper latticedisposed above the main latticeso as to be fitted to an upper end of the main lattice; and a lower latticedisposed between the baseand the main latticeso as to be fitted to a lower end of the main lattice. Thus, the main latticecan be formed without welding, whereby the main latticecan be made of a boron-added stainless steel to which a sufficient amount of boron is added to absorb neutrons.